1964 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 313.3 296.6 298.9 268.7 275.5 279.6 294.3 306.2 315.3 337.7 441.1 344.9 -85 -80 312.0 297.0 299.9 269.1 277.0 283.5 300.5 306.6 308.1 337.5 438.9 349.8 -80 -75 306.1 296.4 301.7 275.1 280.8 291.5 310.9 306.9 301.0 343.3 426.1 353.5 -75 -70 297.7 295.0 305.3 290.0 288.2 301.7 322.7 311.2 305.6 361.2 402.0 351.6 -70 -65 295.8 294.6 312.2 309.0 299.1 310.4 331.9 325.0 327.0 386.2 378.3 346.6 -65 -60 308.0 297.1 320.5 321.3 311.1 315.8 335.8 346.6 355.8 401.9 368.0 343.7 -60 -55 328.5 303.2 323.8 319.7 319.8 319.7 336.3 365.6 375.5 397.3 369.8 343.6 -55 -50 341.4 311.0 317.5 307.3 320.7 325.5 338.0 372.1 378.5 378.8 367.6 341.4 -50 -45 335.5 315.0 303.1 292.9 313.1 331.0 342.4 366.3 370.3 360.8 351.1 333.5 -45 -40 315.7 309.8 287.1 282.0 299.9 329.9 342.7 355.4 358.4 348.6 327.1 321.4 -40 -35 295.1 295.4 274.9 274.1 286.1 317.9 330.7 342.2 343.3 336.2 306.8 307.9 -35 -30 281.7 277.5 267.2 266.6 274.8 298.1 306.7 324.4 323.0 317.8 293.9 293.4 -30 -25 274.1 263.9 261.7 259.1 266.1 277.9 280.2 301.4 300.0 296.4 284.2 278.6 -25 -20 267.6 257.1 256.5 253.3 259.2 262.3 260.7 277.7 280.5 278.7 273.6 266.6 -20 -15 261.0 255.0 252.3 250.6 254.1 251.7 250.8 259.6 267.5 267.0 263.0 259.7 -15 -10 256.6 255.3 250.9 250.8 251.5 245.7 247.4 250.6 260.6 260.0 255.4 256.1 -10 -5 256.0 257.1 252.4 252.6 251.8 245.3 248.0 250.2 258.4 256.5 251.7 252.2 -5 0 255.6 258.3 253.8 254.6 254.7 251.4 252.4 255.6 259.5 255.9 249.5 247.1 0 5 251.2 256.0 252.7 256.6 258.9 261.4 260.4 263.7 261.8 256.6 246.8 244.2 5 10 243.8 251.1 250.4 258.9 263.9 270.1 268.8 271.0 264.4 257.1 245.6 245.6 10 15 239.7 249.1 250.6 262.3 270.4 274.7 273.5 274.3 266.6 256.8 248.5 249.1 15 20 244.1 254.6 255.9 267.5 279.9 277.7 274.2 272.8 267.8 256.6 254.1 251.1 20 25 256.6 267.8 267.6 276.6 293.1 284.6 275.9 269.8 268.3 258.3 258.6 253.9 25 30 273.9 287.3 287.3 292.6 308.4 297.6 283.6 272.0 271.2 263.6 261.8 264.9 30 35 294.6 312.3 316.1 315.8 323.9 313.5 296.3 282.7 278.6 272.6 268.0 288.0 35 40 318.3 342.2 351.1 343.3 339.2 327.2 307.5 297.2 288.4 282.7 278.7 315.4 40 45 340.8 371.9 384.0 370.6 355.6 336.8 313.7 308.1 297.0 291.6 289.4 332.5 45 50 353.4 390.7 406.4 394.7 373.1 345.6 318.8 313.6 304.6 300.5 295.8 335.0 50 55 350.7 389.9 415.9 414.6 388.9 355.6 328.0 317.3 312.7 308.8 299.9 335.7 55 60 340.0 373.9 416.9 429.9 398.9 363.5 338.7 320.6 317.6 309.4 306.0 347.3 60 65 336.3 360.1 416.5 441.4 401.2 363.9 341.9 318.6 312.0 294.2 313.1 365.2 65 70 347.3 363.9 420.5 451.1 397.6 356.7 334.2 308.7 295.8 266.7 316.5 374.5 70 75 365.6 384.2 431.4 459.4 392.0 348.3 322.3 295.9 278.1 242.8 314.4 370.7 75 80 377.5 404.8 448.2 464.6 387.7 345.4 314.7 287.7 267.0 236.5 310.4 365.9 80 85 377.5 412.8 466.0 465.7 385.9 348.4 313.7 286.4 263.4 246.1 308.5 370.5 85 90 372.5 411.8 477.6 464.6 385.8 352.2 315.1 288.0 263.2 257.3 308.8 379.0 1965 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 307.1 280.0 253.7 285.7 280.6 285.9 267.7 290.3 273.8 293.9 295.7 299.1 -85 -80 311.0 286.0 255.1 288.1 283.8 289.7 270.3 291.0 265.3 287.7 290.1 301.7 -80 -75 312.7 287.4 258.2 294.8 290.0 297.0 275.3 294.1 260.5 282.7 287.9 303.7 -75 -70 309.0 279.8 265.3 304.8 298.2 306.6 283.9 302.7 274.0 289.7 297.3 303.3 -70 -65 304.3 273.0 278.0 312.4 306.8 316.6 298.0 317.6 308.6 313.9 317.3 302.6 -65 -60 305.2 278.6 293.8 311.5 313.3 324.8 317.2 333.6 348.4 347.9 336.3 304.2 -60 -55 311.6 294.4 304.6 302.7 315.7 329.9 336.5 343.8 371.4 373.7 344.0 305.9 -55 -50 316.6 305.2 304.2 293.6 313.1 331.2 350.2 347.6 371.9 377.8 340.8 304.6 -50 -45 313.9 302.3 294.9 289.5 306.6 328.4 354.4 349.1 362.4 364.5 334.2 301.6 -45 -40 304.9 291.3 284.5 288.7 298.3 320.9 348.0 348.5 354.7 348.4 328.9 301.5 -40 -35 294.3 281.5 278.0 286.0 289.6 308.5 332.3 340.7 347.8 336.9 323.6 304.8 -35 -30 284.9 275.4 274.3 278.2 280.5 292.8 310.6 323.0 335.4 327.4 315.5 304.4 -30 -25 276.7 269.6 269.4 267.8 271.6 277.4 288.2 300.3 316.7 314.6 304.7 294.6 -25 -20 268.8 262.9 262.2 259.4 263.8 265.0 269.8 280.1 296.0 297.5 291.7 278.5 -20 -15 261.9 258.2 255.1 255.2 258.2 256.6 257.6 266.2 276.7 279.1 276.7 264.4 -15 -10 256.2 256.7 251.3 253.8 254.9 251.8 251.3 257.7 261.5 264.0 261.9 256.8 -10 -5 251.4 255.5 250.4 253.1 252.8 249.9 249.4 254.0 253.7 255.4 251.4 251.5 -5 0 246.9 251.3 249.8 252.4 251.7 250.6 251.0 254.7 253.4 252.5 246.6 243.4 0 5 243.2 247.0 248.6 253.5 252.9 254.3 255.3 259.0 256.9 252.4 244.2 233.4 5 10 242.4 249.3 249.9 257.5 258.2 260.6 261.5 264.8 261.1 254.1 242.0 227.5 10 15 246.8 258.7 256.7 264.2 267.5 268.1 267.6 269.6 265.1 258.5 242.2 230.1 15 20 255.8 267.8 268.9 272.8 279.8 276.0 271.9 273.3 269.4 265.0 248.0 238.8 20 25 266.5 272.7 284.8 283.9 293.8 284.4 275.3 277.5 273.5 270.9 257.3 249.4 25 30 278.8 281.8 305.3 299.8 309.4 295.0 281.6 284.4 277.4 274.7 265.7 261.7 30 35 295.6 309.4 333.0 321.8 326.7 309.3 293.7 293.7 282.1 277.7 273.2 279.9 35 40 319.0 355.3 366.1 348.4 346.0 325.9 310.1 302.6 288.5 281.7 285.1 305.3 40 45 346.6 397.1 396.9 375.2 365.4 341.7 325.6 309.5 297.7 287.4 303.8 332.9 45 50 370.6 411.4 417.4 398.0 381.5 353.3 336.0 315.8 308.9 295.2 322.3 356.3 50 55 383.3 400.8 425.6 413.3 392.6 358.5 339.7 321.5 317.3 304.3 327.2 375.2 55 60 383.9 388.5 425.5 420.9 398.7 358.0 337.2 322.2 315.7 309.7 313.3 395.3 60 65 377.3 390.3 421.8 424.0 401.2 353.8 330.4 313.3 302.7 305.1 292.0 417.4 65 70 369.7 403.0 416.8 427.5 401.2 348.3 322.6 297.1 285.8 290.9 279.3 435.7 70 75 366.2 415.4 413.9 432.9 398.8 344.4 316.9 282.1 274.2 276.1 280.6 446.2 75 80 370.3 422.4 416.3 436.6 394.3 343.3 313.7 274.1 269.3 269.6 287.6 452.3 80 85 380.0 425.9 423.4 436.1 389.7 343.8 311.3 272.6 267.0 271.6 291.0 459.2 85 90 388.2 428.0 430.0 433.9 386.8 344.5 309.4 273.2 265.3 275.6 290.1 465.3 1966 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 261.1 264.6 253.1 261.9 276.1 280.2 259.0 317.5 289.6 303.2 335.8 313.1 -85 -80 262.7 269.6 260.3 267.5 282.6 282.1 263.4 320.8 287.0 307.1 342.8 316.5 -80 -75 262.5 275.4 272.8 275.1 291.5 287.5 270.7 328.2 289.8 316.7 350.6 319.5 -75 -70 263.5 280.0 286.3 281.9 299.3 297.2 279.8 340.1 304.9 332.0 354.3 320.4 -70 -65 276.0 285.2 295.5 288.6 306.0 308.7 290.7 350.9 326.8 345.8 354.1 321.6 -65 -60 303.6 292.2 296.9 297.0 313.7 318.3 302.4 350.6 337.4 347.1 352.8 326.3 -60 -55 331.8 297.4 291.9 305.0 321.2 323.4 313.5 336.9 330.5 336.9 351.4 332.2 -55 -50 340.5 297.1 286.3 306.6 322.9 322.9 322.0 321.9 322.3 327.3 346.5 332.5 -50 -45 327.0 292.8 284.1 298.5 314.4 315.9 325.4 316.8 326.9 325.4 334.0 323.4 -45 -40 307.3 290.0 284.4 285.3 297.5 302.6 320.9 317.4 336.5 326.1 315.2 309.3 -40 -35 295.7 290.6 283.8 275.3 280.1 285.7 307.9 311.8 333.7 320.4 296.2 298.0 -35 -30 290.8 290.5 280.1 272.0 268.7 270.3 290.1 296.3 314.1 307.5 283.9 291.6 -30 -25 282.8 285.0 273.8 271.2 263.5 260.3 273.8 279.1 291.4 294.4 280.0 286.3 -25 -20 269.4 273.8 266.1 267.0 260.7 255.7 263.4 268.6 277.3 285.3 278.6 278.4 -20 -15 257.2 261.3 258.4 258.6 257.2 254.0 258.4 264.0 269.7 276.9 272.7 267.9 -15 -10 251.5 253.0 252.7 251.0 253.1 253.3 255.8 260.5 262.7 266.8 262.0 258.0 -10 -5 249.5 250.2 250.7 249.5 250.7 254.2 254.7 257.9 257.5 258.6 252.6 250.6 -5 0 244.7 249.0 251.0 253.1 252.0 257.2 256.5 260.1 258.8 256.5 248.0 244.4 0 5 236.9 245.3 250.1 257.1 256.4 261.2 262.1 268.2 266.4 258.8 246.2 238.3 5 10 231.9 240.0 247.5 259.2 261.9 264.9 270.2 277.5 274.0 260.5 244.7 234.4 10 15 234.1 237.3 246.0 261.4 266.7 268.2 276.4 281.9 276.5 260.4 245.4 236.6 15 20 241.7 239.7 250.4 267.7 272.5 273.6 278.2 280.1 275.2 261.7 250.3 245.6 20 25 252.2 247.9 263.2 280.6 283.4 283.4 278.3 277.5 274.6 266.8 257.2 257.8 25 30 268.9 265.1 285.0 300.5 302.0 297.9 283.1 280.3 277.8 274.6 263.4 270.6 30 35 297.4 295.0 315.5 326.0 326.3 315.3 296.4 289.7 283.9 282.6 271.6 286.6 35 40 335.0 335.7 352.6 354.7 350.7 333.7 315.6 301.7 290.4 290.1 288.2 309.8 40 45 368.3 376.8 391.0 383.1 371.0 351.4 333.7 312.8 297.4 299.7 313.1 337.8 45 50 387.9 406.7 422.7 405.6 387.8 365.6 345.2 322.3 306.8 313.4 334.5 359.3 50 55 399.7 422.4 440.9 418.4 403.5 372.2 348.4 329.0 316.6 326.6 338.7 365.8 55 60 414.7 428.4 447.3 424.0 416.4 369.2 344.8 329.1 319.8 329.3 326.6 363.9 60 65 432.2 431.4 451.9 432.3 421.0 360.2 337.1 320.2 311.5 316.5 315.9 369.4 65 70 441.1 435.1 463.5 450.7 414.2 351.9 329.0 306.4 296.1 295.4 322.4 388.6 70 75 438.1 442.0 480.1 474.2 400.4 349.0 323.4 294.0 280.3 278.6 342.4 410.5 75 80 433.8 452.9 491.5 489.6 389.1 351.1 320.1 286.0 265.0 272.7 358.5 419.4 80 85 437.6 465.2 491.9 490.4 385.5 354.0 317.3 281.3 249.6 274.0 360.2 412.1 85 90 445.3 473.6 487.4 484.6 386.6 355.6 315.0 278.6 238.7 276.3 354.4 401.4 1967 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 270.6 260.4 253.4 262.9 272.8 263.8 265.4 267.8 292.4 328.9 357.4 304.1 -85 -80 273.7 268.5 253.7 265.0 277.8 265.8 269.3 269.3 284.8 322.6 353.5 311.3 -80 -75 280.0 278.1 259.4 269.6 285.2 270.9 276.2 272.3 279.3 326.6 355.1 321.5 -75 -70 290.7 285.2 274.0 277.0 292.8 279.4 285.4 279.5 288.7 354.0 369.3 330.1 -70 -65 306.3 292.5 292.8 286.4 300.4 290.1 296.8 294.0 315.7 394.4 390.6 335.8 -65 -60 323.1 302.8 305.8 295.0 308.3 299.8 309.2 314.1 348.4 418.1 403.1 341.2 -60 -55 332.2 311.3 307.6 298.2 314.9 305.4 321.0 333.7 370.7 408.5 396.1 346.5 -55 -50 328.0 310.3 301.2 293.7 315.6 306.2 330.9 347.1 376.7 380.2 374.5 347.0 -50 -45 313.1 298.8 293.1 283.7 306.8 304.1 337.2 351.9 371.0 356.2 349.4 337.5 -45 -40 295.9 283.5 285.6 273.9 291.3 301.2 336.8 346.7 358.6 340.8 326.6 318.6 -40 -35 282.7 271.6 277.5 268.2 275.5 297.6 327.2 331.7 340.2 326.0 306.2 297.8 -35 -30 274.6 265.1 269.4 266.3 265.0 291.4 310.0 310.4 318.5 310.2 291.0 283.8 -30 -25 269.4 262.6 263.2 265.1 260.8 281.5 290.9 289.6 300.0 299.7 284.9 279.1 -25 -20 265.1 262.0 259.2 263.1 260.1 270.0 275.3 274.5 287.7 294.8 284.5 278.7 -20 -15 260.2 261.9 256.7 260.7 259.0 260.7 265.4 265.7 278.8 286.7 280.6 274.6 -15 -10 253.8 261.2 255.9 258.7 255.3 256.2 260.7 261.4 271.2 270.6 269.1 264.0 -10 -5 246.3 258.1 257.5 256.8 250.2 257.4 260.5 260.8 267.0 254.3 256.0 251.0 -5 0 239.1 252.4 259.4 254.9 248.1 262.6 264.5 264.5 268.0 248.1 249.6 241.7 0 5 235.1 247.5 257.9 255.5 252.7 269.7 270.9 271.7 271.5 252.1 250.7 239.4 5 10 236.2 248.2 254.1 261.6 263.5 276.4 276.7 278.9 273.6 258.3 254.1 242.9 10 15 242.2 254.6 254.6 272.4 276.2 280.8 279.1 282.0 273.1 261.6 257.1 249.0 15 20 250.4 262.0 265.3 284.2 286.5 283.1 277.6 280.5 272.1 263.5 261.9 255.7 20 25 258.3 267.7 284.0 293.4 295.1 285.2 276.5 277.9 272.4 267.3 268.9 262.8 25 30 268.2 276.7 303.0 301.3 305.8 291.4 280.6 279.0 274.3 271.2 275.0 271.9 30 35 287.0 297.7 317.3 312.6 320.5 304.5 291.3 286.2 278.0 272.3 278.5 285.0 35 40 319.4 331.9 332.7 330.6 337.2 322.7 304.8 296.4 283.5 272.4 281.9 303.4 40 45 360.2 369.5 359.7 354.0 351.9 340.4 316.0 304.8 291.0 277.4 291.3 324.6 45 50 393.8 399.9 398.1 378.5 364.0 351.6 323.1 309.9 299.0 289.7 308.0 341.4 50 55 407.2 417.7 429.9 398.8 375.7 355.0 326.6 311.9 303.5 302.5 322.9 347.2 55 60 401.4 420.0 438.4 410.9 386.9 353.5 325.9 310.2 300.8 305.6 323.8 342.3 60 65 388.0 403.5 426.3 413.8 393.0 350.2 320.5 303.9 292.2 298.3 310.3 334.9 65 70 378.8 372.6 411.7 411.1 390.8 346.7 312.3 294.3 284.7 290.1 296.4 334.7 70 75 378.8 347.6 407.4 409.0 383.4 343.0 305.2 285.1 282.7 287.9 298.5 347.0 75 80 386.6 350.7 409.3 411.2 379.4 338.5 301.6 278.3 282.3 287.8 321.0 370.2 80 85 397.0 381.2 408.6 416.7 382.6 333.5 300.4 273.6 278.2 284.4 352.5 396.2 85 90 404.1 410.7 405.4 420.9 387.7 330.3 300.0 270.9 273.0 279.5 374.7 413.4 1968 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 304.1 285.4 272.2 281.2 281.5 261.5 258.7 262.1 306.5 338.3 409.0 345.7 -85 -80 308.5 288.0 277.1 279.6 282.0 266.4 263.1 263.5 300.7 334.0 409.0 350.2 -80 -75 314.5 293.4 284.9 281.5 285.7 275.0 270.7 266.6 296.7 335.1 411.7 357.4 -75 -70 320.9 301.9 293.6 290.1 294.2 284.3 280.0 274.2 306.0 351.2 417.5 363.3 -70 -65 329.3 312.0 301.6 302.6 304.7 292.5 290.5 288.6 333.3 379.4 421.4 363.9 -65 -60 338.4 319.9 307.2 311.4 313.2 300.1 302.2 308.5 368.1 403.4 415.2 359.3 -60 -55 340.9 321.4 307.9 311.4 318.0 308.5 314.3 329.5 392.5 409.0 397.8 352.6 -55 -50 330.7 315.7 302.4 304.3 320.3 315.8 325.3 346.6 396.0 397.1 375.3 344.9 -50 -45 310.2 304.6 291.4 294.9 319.4 316.9 332.2 354.6 382.4 377.6 351.8 333.4 -45 -40 289.8 290.6 278.0 286.5 313.0 308.6 331.4 349.2 361.6 356.8 327.4 316.0 -40 -35 277.5 277.2 266.8 279.8 300.4 294.4 321.6 330.3 340.5 335.4 303.5 296.9 -35 -30 272.9 268.0 261.5 274.5 285.2 282.2 306.2 305.1 322.2 315.2 286.9 284.1 -30 -25 270.2 264.2 261.5 269.8 271.8 275.6 290.1 283.9 307.6 299.7 281.7 280.5 -25 -20 265.1 262.1 262.7 264.6 262.4 271.7 275.8 270.5 294.6 289.1 281.6 280.4 -20 -15 257.4 257.1 260.9 259.2 256.7 266.0 263.4 262.5 280.9 279.0 276.1 275.9 -15 -10 249.4 250.2 256.8 255.4 254.4 258.5 254.1 257.0 267.9 268.8 264.2 265.8 -10 -5 242.2 245.8 253.4 255.4 256.5 254.4 251.4 255.4 261.5 263.1 255.4 256.1 -5 0 235.9 245.3 252.3 258.7 263.4 257.8 256.8 260.8 264.9 264.7 256.0 251.9 0 5 231.5 245.0 252.2 263.0 272.3 266.8 267.5 270.9 273.6 268.5 260.0 251.1 5 10 232.0 243.2 253.0 266.8 279.2 276.1 277.7 279.7 280.0 268.5 257.7 248.5 10 15 240.3 244.3 257.6 271.9 283.1 282.4 283.4 282.7 281.1 265.0 249.4 243.0 15 20 255.1 254.1 269.2 282.6 288.1 287.3 285.5 281.5 278.9 263.7 245.0 239.2 20 25 272.1 274.1 289.3 300.6 299.0 294.4 288.2 281.6 277.5 267.0 251.0 241.8 25 30 288.8 301.5 315.8 321.9 315.4 304.1 294.5 286.5 280.0 272.7 263.3 252.7 30 35 306.9 332.7 344.6 340.2 332.4 315.0 303.8 295.8 286.9 277.7 274.5 272.6 35 40 330.1 364.9 370.6 352.3 346.4 326.7 313.6 306.0 295.6 282.7 282.7 302.3 40 45 358.7 393.7 391.0 362.7 358.3 340.0 323.5 315.1 302.6 290.8 293.2 338.1 45 50 389.5 412.3 406.4 378.2 370.2 353.7 333.5 322.6 307.0 302.8 309.7 368.3 50 55 418.0 416.0 417.8 398.4 383.1 363.3 341.9 328.1 309.0 313.8 325.3 381.8 55 60 441.2 409.0 425.6 416.0 396.1 366.1 344.7 329.4 308.2 316.8 329.6 381.3 60 65 458.5 404.6 430.0 425.9 409.3 364.8 339.9 326.2 305.0 310.8 322.8 382.0 65 70 468.8 413.0 432.7 430.5 422.8 365.3 332.3 320.7 301.9 302.6 317.5 393.0 70 75 471.6 429.1 435.1 434.6 433.2 369.0 327.4 314.3 299.8 298.7 324.4 405.0 75 80 469.4 436.4 437.1 439.2 435.8 371.6 326.0 305.4 295.3 297.9 342.8 400.6 80 85 466.5 427.4 437.8 441.8 430.6 369.3 325.3 293.8 286.1 295.8 362.7 378.0 85 90 465.3 414.5 437.3 442.0 424.4 365.3 324.3 284.7 277.6 292.9 374.6 356.1 1969 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 300.3 279.5 274.2 276.0 279.6 271.8 272.5 295.5 309.3 282.6 311.5 326.0 -85 -80 304.7 290.6 277.5 272.1 279.2 273.6 269.3 295.2 312.0 278.0 314.4 323.9 -80 -75 311.6 303.4 284.1 271.9 282.4 278.9 269.7 296.1 314.7 278.1 318.7 325.1 -75 -70 319.1 309.7 293.6 281.9 292.0 289.7 280.6 302.8 320.5 292.6 324.2 332.6 -70 -65 327.9 308.0 304.5 300.4 306.8 305.4 301.3 318.3 333.2 319.8 331.4 341.8 -65 -60 336.9 303.2 313.5 317.7 321.8 321.6 321.9 337.8 349.4 345.6 338.5 345.6 -60 -55 340.8 299.4 315.8 323.0 330.8 333.4 332.2 350.2 361.6 357.0 341.3 342.5 -55 -50 334.0 296.2 309.1 314.7 329.8 336.7 330.9 348.8 363.9 353.3 337.5 335.3 -50 -45 317.0 290.6 295.9 298.9 317.9 330.2 324.6 337.2 355.8 342.6 328.7 325.2 -45 -40 295.8 281.3 281.1 283.7 298.4 316.1 317.4 322.5 341.4 330.9 318.3 310.4 -40 -35 278.8 270.6 268.9 273.4 278.3 298.1 307.0 308.4 324.4 319.1 307.9 292.5 -35 -30 271.0 263.1 261.6 267.7 263.7 280.4 290.6 294.2 307.3 308.6 297.7 277.5 -30 -25 270.9 261.3 258.9 263.5 256.5 266.0 271.3 279.7 292.8 301.8 290.0 270.7 -25 -20 272.4 262.4 257.6 258.5 253.5 256.1 256.1 267.6 281.9 296.9 285.1 270.0 -20 -15 269.9 261.8 255.9 253.5 251.0 250.6 249.1 260.2 274.1 289.2 280.3 268.3 -15 -10 263.2 258.7 255.1 251.8 250.1 249.1 249.4 258.9 268.9 278.2 273.0 262.2 -10 -5 257.0 255.6 257.6 255.8 254.2 251.7 255.1 263.5 268.2 270.4 265.0 255.3 -5 0 254.5 254.7 263.0 263.5 264.6 258.4 264.4 272.2 273.3 270.8 260.5 252.4 0 5 253.8 255.2 267.0 269.9 276.7 268.3 275.4 281.4 281.8 276.2 261.2 253.2 5 10 251.4 255.7 266.9 271.7 284.3 278.3 285.0 287.6 288.8 279.3 263.8 254.0 10 15 246.6 255.3 263.7 270.6 285.8 284.7 289.2 289.0 289.8 277.8 264.3 253.7 15 20 243.3 253.6 262.2 272.1 286.8 287.0 287.8 286.3 284.3 275.0 261.8 254.9 20 25 246.3 252.6 268.3 281.8 293.5 289.3 285.2 283.1 277.9 274.6 260.3 259.8 25 30 258.7 259.9 286.0 300.5 306.6 297.0 287.8 284.1 278.5 277.1 265.7 268.6 30 35 280.1 284.9 315.8 324.1 322.1 311.8 297.8 291.5 287.5 281.2 279.7 282.8 35 40 307.7 329.7 352.0 348.3 338.2 330.4 310.8 302.9 297.2 286.1 296.9 306.7 40 45 338.0 382.0 386.0 371.6 356.9 347.2 321.5 313.4 299.6 292.2 308.9 339.7 45 50 367.9 421.0 411.0 394.7 379.0 359.5 330.2 320.2 298.5 300.2 315.0 367.5 50 55 392.7 434.1 425.4 415.8 399.6 368.6 340.1 323.4 304.2 308.1 320.9 370.4 55 60 407.2 429.0 432.3 431.8 411.5 375.7 349.9 323.3 318.3 311.9 327.4 345.4 60 65 408.7 423.6 436.0 442.1 413.7 379.4 353.6 319.4 328.2 310.9 325.7 314.0 65 70 399.9 427.2 440.2 449.8 412.0 378.1 348.1 312.2 321.4 308.4 310.0 304.4 70 75 388.6 434.1 446.6 456.4 411.6 373.8 336.8 302.8 299.5 306.6 288.1 326.5 75 80 383.9 431.9 454.7 458.7 412.3 370.0 324.8 291.7 273.0 304.0 275.4 366.6 80 85 387.8 417.9 461.7 455.1 411.9 368.7 315.6 280.5 251.6 298.1 277.7 403.7 85 90 393.5 404.0 465.8 449.9 410.8 369.1 310.8 272.9 240.2 292.2 285.4 424.1 1970 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 289.1 292.8 275.4 274.7 283.3 265.7 291.6 307.5 284.7 286.1 359.6 344.2 -85 -80 297.5 296.4 284.3 274.2 283.0 270.1 296.6 304.2 278.7 283.1 364.7 343.3 -80 -75 307.9 302.4 295.5 276.8 285.5 277.7 304.6 303.1 274.5 284.8 370.7 345.2 -75 -70 313.5 310.6 302.8 285.6 293.4 286.5 314.4 310.4 284.9 300.9 374.1 351.2 -70 -65 314.1 319.2 305.7 298.0 304.9 295.5 326.8 327.4 317.5 333.1 373.3 356.7 -65 -60 313.9 324.5 306.3 307.4 314.4 304.1 341.0 346.4 363.4 369.4 366.5 355.7 -60 -55 314.9 322.9 305.1 308.4 317.6 312.1 353.1 357.7 400.3 392.0 353.5 346.7 -55 -50 314.4 314.5 300.3 300.8 314.5 317.9 357.9 359.3 411.5 391.6 337.2 333.6 -50 -45 307.9 301.6 291.7 289.5 308.3 319.3 352.5 355.9 398.9 374.6 323.4 320.8 -45 -40 294.4 286.8 281.4 279.0 300.9 314.6 337.5 348.9 375.5 352.7 315.2 309.6 -40 -35 278.1 272.6 272.1 270.3 291.7 303.7 317.3 334.8 351.2 333.0 310.3 299.5 -35 -30 265.6 262.5 265.3 263.0 280.7 288.9 297.8 313.5 329.7 318.1 304.9 290.9 -30 -25 260.7 259.3 261.4 257.5 270.2 275.0 283.1 292.2 311.7 308.0 297.2 284.6 -25 -20 261.2 260.1 260.3 254.5 263.2 265.8 273.6 278.1 296.7 299.7 288.0 280.2 -20 -15 261.3 259.8 261.0 254.5 260.2 261.3 266.9 271.1 282.6 289.3 278.2 275.6 -15 -10 257.7 256.5 261.2 256.4 258.8 259.0 260.8 266.6 269.6 276.3 268.4 270.1 -10 -5 252.4 252.4 258.9 258.4 257.6 256.9 257.0 262.7 261.5 265.7 261.0 264.7 -5 0 249.4 250.5 254.9 259.7 258.4 255.7 259.0 262.6 261.2 262.4 258.1 261.5 0 5 249.5 250.4 253.7 261.7 264.4 259.2 267.5 269.4 268.0 265.2 259.0 259.6 5 10 250.0 250.3 258.1 266.8 275.5 269.1 279.2 280.0 277.2 269.3 260.7 256.6 10 15 249.2 250.1 266.1 274.8 286.5 282.1 288.0 287.3 283.1 270.5 260.6 252.2 15 20 249.5 252.0 272.8 283.7 292.6 291.6 290.3 287.1 283.0 268.3 258.1 248.6 20 25 256.3 259.6 278.9 292.7 295.2 295.1 289.5 283.1 278.4 265.5 255.9 249.4 25 30 273.8 276.7 293.0 305.3 301.7 298.1 292.0 283.5 275.8 266.4 259.2 257.3 30 35 301.7 305.9 324.4 325.4 318.0 309.2 301.2 292.2 280.5 274.0 270.8 274.0 35 40 333.3 344.9 370.1 354.3 342.0 330.0 313.9 304.8 291.2 286.3 287.4 299.6 40 45 360.2 387.1 414.1 387.4 365.6 352.1 325.1 314.1 303.0 298.4 302.8 329.4 45 50 380.5 424.6 441.6 417.1 383.1 364.5 334.0 318.8 313.7 307.6 315.3 352.0 50 55 399.1 450.5 452.5 437.5 396.1 364.5 343.0 322.9 323.2 315.2 327.9 356.4 55 60 420.1 461.2 456.4 450.3 409.6 361.9 351.3 328.0 328.9 323.1 339.4 342.6 60 65 441.1 457.4 457.3 462.0 424.8 367.8 354.4 329.8 325.8 330.5 341.1 322.8 65 70 455.9 444.9 452.8 478.1 437.9 383.3 350.5 325.1 314.0 335.0 327.1 312.6 70 75 462.6 432.0 444.6 495.2 444.8 398.2 342.9 315.4 299.8 335.1 304.8 319.9 75 80 465.9 424.7 440.3 504.7 445.9 401.8 335.3 304.8 289.0 330.4 288.4 340.5 80 85 470.2 422.7 444.2 503.4 444.8 393.7 329.7 296.4 281.9 322.1 284.9 364.0 85 90 474.5 422.7 450.4 498.2 444.0 384.3 326.8 291.7 278.2 315.2 288.2 379.4 1971 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 298.7 284.1 274.2 294.8 274.0 269.4 258.8 271.5 290.4 302.6 363.4 306.1 -85 -80 302.4 292.4 281.8 303.6 280.0 275.1 267.3 273.0 288.5 302.6 370.4 306.9 -80 -75 308.3 302.3 292.0 314.6 288.4 284.2 278.3 275.4 287.6 307.3 378.3 309.9 -75 -70 314.5 307.5 300.1 320.4 296.2 293.5 287.4 281.9 295.3 322.1 381.8 317.0 -70 -65 319.1 306.1 306.3 318.7 303.0 301.7 295.7 297.6 316.4 345.0 380.2 328.4 -65 -60 319.5 299.8 312.2 312.9 310.9 309.7 307.0 320.4 344.8 365.8 373.9 340.8 -60 -55 314.1 292.0 315.5 307.4 318.2 319.0 320.3 339.5 367.3 376.0 363.5 346.5 -55 -50 304.6 285.8 311.3 302.6 320.3 326.9 329.1 344.9 374.3 374.6 349.6 340.0 -50 -45 295.0 282.9 298.5 294.8 313.3 327.8 327.4 338.0 366.0 364.8 334.0 323.6 -45 -40 287.3 281.5 282.0 283.3 299.4 317.8 315.8 327.4 348.8 349.0 319.2 304.6 -40 -35 281.3 278.6 268.4 271.3 285.3 299.4 299.9 316.3 327.7 328.5 306.4 289.5 -35 -30 276.4 272.4 261.2 262.8 275.0 279.3 285.0 301.9 306.1 307.6 295.9 279.9 -30 -25 272.5 265.5 259.1 258.7 268.4 263.7 272.8 283.6 287.9 291.3 286.8 274.3 -25 -20 270.1 261.1 258.6 257.3 263.2 254.4 263.5 267.0 274.6 280.1 278.0 270.9 -20 -15 268.4 260.5 258.6 256.7 258.9 251.0 258.2 259.0 266.1 271.1 268.8 268.1 -15 -10 266.1 262.5 260.5 257.5 257.4 252.6 258.0 260.9 262.7 264.0 261.0 264.7 -10 -5 263.4 264.3 264.4 261.6 260.8 259.6 262.9 268.8 265.6 263.1 258.1 260.1 -5 0 261.0 263.4 267.1 268.6 268.9 270.6 271.2 277.6 273.3 269.2 260.5 256.3 0 5 258.7 259.6 265.4 275.8 278.2 282.2 279.3 284.9 281.0 275.8 264.5 256.0 5 10 255.1 255.3 260.8 280.3 284.3 290.0 284.4 289.9 284.6 276.5 266.4 259.8 10 15 250.2 253.1 257.7 280.3 285.9 291.6 285.9 291.5 284.1 272.3 266.1 264.2 15 20 246.1 253.0 259.1 278.1 285.9 288.9 284.5 288.2 281.4 268.8 265.2 264.9 20 25 247.3 255.8 266.1 280.2 290.2 286.8 283.3 282.7 278.5 268.8 264.4 261.6 25 30 258.9 266.9 280.8 292.7 303.1 290.6 286.2 281.8 278.8 270.7 265.0 260.4 30 35 283.1 292.6 307.4 317.0 323.3 303.3 294.6 289.4 284.9 273.0 270.2 269.0 35 40 317.1 331.5 347.1 347.2 345.5 323.9 306.8 301.1 295.9 277.1 282.5 290.2 40 45 353.7 371.9 390.9 374.6 363.9 347.7 319.3 308.5 307.5 285.2 299.8 318.4 45 50 385.3 401.2 423.3 394.2 377.0 367.1 329.8 310.0 315.8 296.1 316.0 341.6 50 55 407.7 416.1 434.9 407.9 387.2 376.4 338.0 311.6 319.6 305.3 324.9 349.9 55 60 421.2 423.1 432.5 420.3 397.3 375.8 343.3 317.5 319.6 309.7 325.0 340.3 60 65 428.1 429.6 432.6 434.7 407.3 370.6 344.1 322.8 317.6 313.1 319.2 316.1 65 70 432.0 437.0 445.2 450.2 414.2 366.9 340.3 320.9 315.7 320.7 313.3 286.8 70 75 438.7 443.0 465.3 462.3 415.4 365.1 333.5 311.6 312.9 331.8 311.6 268.0 75 80 453.2 445.0 479.4 466.0 411.9 361.8 324.8 300.6 304.6 339.0 314.6 271.6 80 85 474.0 443.7 481.0 461.9 406.8 355.7 315.0 292.9 290.1 337.2 319.3 293.9 85 90 490.0 441.9 476.6 456.5 403.5 350.1 308.1 289.3 277.9 331.7 322.4 315.3 1972 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 283.0 271.5 265.7 278.6 269.5 257.6 275.2 309.3 320.5 315.8 395.4 345.3 -85 -80 290.5 274.4 273.5 276.5 276.9 267.8 281.9 310.3 299.5 312.7 385.0 345.9 -80 -75 298.5 279.7 283.8 277.2 286.5 280.5 291.5 313.2 282.7 314.1 378.4 348.8 -75 -70 303.5 287.2 291.5 285.3 293.5 288.6 301.0 321.7 294.4 329.5 387.1 354.5 -70 -65 310.2 296.6 295.9 299.8 299.3 293.2 311.1 338.4 335.6 357.9 405.6 360.9 -65 -60 323.2 304.9 298.9 313.4 307.2 301.1 323.6 358.3 381.2 385.6 413.9 364.8 -60 -55 336.1 308.0 300.2 317.5 316.5 315.2 337.5 372.1 403.4 398.8 399.5 363.1 -55 -50 335.6 304.7 297.5 309.3 320.1 328.7 348.0 374.2 398.0 394.4 370.8 354.2 -50 -45 317.8 297.3 289.4 293.2 312.1 330.5 350.0 366.6 379.9 379.2 345.3 337.4 -45 -40 293.1 288.1 277.9 277.0 295.1 317.4 341.8 354.0 358.1 360.0 330.2 315.5 -40 -35 275.1 277.9 267.0 265.6 278.5 296.6 325.5 338.1 333.1 338.6 319.9 295.7 -35 -30 268.2 267.9 259.7 259.6 268.4 278.3 306.4 318.9 309.0 317.5 308.1 284.2 -30 -25 267.9 260.8 257.0 256.9 264.4 266.8 288.8 298.5 293.6 300.5 295.3 280.9 -25 -20 267.7 258.2 257.4 255.9 263.1 260.6 274.6 280.5 286.8 288.3 283.9 279.4 -20 -15 265.7 259.1 259.1 256.0 262.1 257.1 263.9 267.1 279.5 277.5 273.9 272.9 -15 -10 262.6 260.8 261.4 257.5 261.6 255.6 257.1 259.3 267.3 266.7 264.4 261.8 -10 -5 259.7 261.6 264.0 260.9 263.1 257.4 255.7 258.3 257.2 259.1 257.3 252.3 -5 0 257.1 261.0 265.8 265.1 266.7 262.6 260.7 263.2 257.3 257.9 254.5 248.1 0 5 255.7 260.0 265.5 270.0 272.2 269.4 269.5 270.2 266.1 260.5 254.1 246.8 5 10 256.3 260.5 263.6 275.3 278.9 275.7 278.0 275.4 274.4 263.3 253.2 244.1 10 15 258.7 263.2 261.9 280.9 285.8 280.1 282.5 277.0 277.1 265.2 252.5 239.9 15 20 260.3 266.7 263.4 286.7 292.5 283.4 283.0 276.6 277.1 267.5 254.5 238.8 20 25 260.6 270.8 271.5 294.2 299.7 287.9 282.8 277.2 279.0 271.1 259.5 244.3 25 30 264.5 280.8 289.7 306.0 309.5 296.7 286.5 281.0 283.4 275.3 266.7 255.9 30 35 279.3 303.1 318.3 323.6 323.9 311.4 296.3 288.4 287.9 280.8 277.0 272.8 35 40 308.0 337.3 350.8 345.2 343.1 330.2 310.1 297.1 292.9 288.7 292.6 296.2 40 45 343.7 372.6 379.2 367.7 363.4 348.1 324.1 305.0 302.4 299.0 313.3 325.9 45 50 374.3 397.2 401.8 388.6 379.8 359.9 335.7 311.3 316.8 310.6 332.5 352.4 50 55 391.5 410.2 423.2 406.1 390.1 364.9 342.9 316.6 327.1 320.7 338.4 359.7 55 60 394.1 421.9 445.5 419.9 395.7 366.6 344.7 319.6 323.2 326.1 325.1 340.3 60 65 384.7 442.4 462.7 430.8 400.2 369.0 341.2 319.1 307.8 327.3 299.7 304.9 65 70 367.5 472.2 468.1 440.1 404.6 372.9 335.5 316.2 295.1 326.6 278.0 275.3 70 75 351.9 502.1 463.0 447.4 407.2 376.5 330.5 312.5 293.4 324.8 272.1 267.5 75 80 348.8 522.0 456.6 450.9 406.7 377.3 326.0 307.3 296.1 319.7 281.7 281.8 80 85 359.1 529.0 455.7 450.4 404.2 374.8 320.8 300.2 293.7 310.5 297.2 305.4 85 90 371.2 528.7 458.0 448.4 402.0 371.6 316.7 294.5 288.3 302.3 307.9 322.5 1973 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 302.3 281.1 271.8 263.4 285.7 274.8 254.5 269.6 285.6 297.0 357.5 332.8 -85 -80 299.3 284.4 279.1 265.7 289.3 272.6 256.1 267.9 279.2 293.9 349.3 328.1 -80 -75 300.4 291.3 292.7 273.3 295.9 274.2 260.9 268.9 275.3 298.0 343.3 327.2 -75 -70 312.2 301.6 308.8 287.9 303.8 284.1 270.0 279.6 287.2 319.2 348.9 335.9 -70 -65 332.5 312.8 321.4 305.9 312.4 297.8 282.5 302.8 320.2 352.3 363.3 348.8 -65 -60 350.2 320.2 325.9 320.1 321.3 307.4 294.6 331.2 361.3 378.9 373.6 354.2 -60 -55 353.8 320.6 322.5 324.6 328.6 310.8 303.2 350.4 386.9 385.7 368.8 347.1 -55 -50 341.4 315.0 314.4 318.1 330.4 313.4 308.5 353.2 385.1 377.0 351.8 332.1 -50 -45 319.8 305.3 302.9 303.3 322.2 318.3 311.7 345.1 365.7 364.4 332.6 315.9 -45 -40 297.1 291.0 286.8 284.6 304.0 319.8 312.0 335.4 345.5 350.2 316.9 300.0 -40 -35 278.7 273.4 267.7 267.2 281.6 309.7 306.4 325.3 330.0 330.7 303.3 284.0 -35 -30 267.4 258.1 253.5 255.7 262.9 288.8 294.4 310.8 314.9 308.4 290.9 270.3 -30 -25 263.7 251.0 250.7 251.9 252.8 266.6 280.2 292.1 297.4 291.7 281.5 262.7 -25 -20 263.9 252.1 256.2 252.4 250.6 253.1 268.1 275.1 280.4 283.8 275.1 261.4 -20 -15 262.3 254.5 260.9 252.6 251.9 249.8 260.5 264.7 267.6 278.6 268.5 261.1 -15 -10 257.0 252.5 259.3 251.0 253.4 252.5 257.4 261.3 260.7 270.3 260.0 256.9 -10 -5 251.6 247.4 254.7 250.8 254.8 257.1 258.7 262.4 259.1 261.4 252.5 249.6 -5 0 249.9 244.4 253.2 255.0 258.4 262.2 262.9 265.7 260.9 257.2 249.5 244.2 0 5 250.5 245.1 255.7 262.7 264.9 267.8 267.7 270.1 263.9 258.1 250.8 243.8 5 10 248.7 246.9 258.9 269.3 272.4 273.1 271.4 274.4 267.0 261.0 254.4 247.6 10 15 243.7 247.0 260.0 271.3 278.3 277.1 274.0 277.3 270.1 263.7 259.6 253.1 15 20 240.2 245.8 261.0 270.5 282.7 280.8 277.4 277.3 271.6 266.7 266.1 259.4 20 25 244.7 248.8 267.3 273.7 289.1 286.9 282.2 276.6 271.0 270.7 272.0 267.4 25 30 260.5 263.4 282.9 287.1 301.0 297.0 289.1 279.7 271.9 274.6 275.2 277.8 30 35 285.8 293.4 308.3 311.6 319.1 310.4 298.0 288.8 278.5 278.4 278.7 290.4 35 40 315.8 333.3 340.4 342.3 340.0 325.1 309.1 300.5 289.3 284.1 288.3 305.6 40 45 344.4 370.3 372.1 372.6 359.1 340.0 322.2 309.2 299.1 293.7 306.7 323.4 45 50 364.6 395.9 396.6 397.8 373.6 354.9 335.2 314.2 305.8 306.1 326.1 341.1 50 55 370.6 413.1 411.2 415.6 383.6 368.2 343.8 319.2 311.5 316.5 332.5 351.7 55 60 361.5 430.9 420.3 426.5 391.4 376.3 344.7 324.7 317.1 320.3 318.1 349.3 60 65 343.5 454.8 433.7 434.0 399.0 376.6 339.9 326.2 320.1 318.9 290.7 336.1 65 70 327.6 481.8 456.6 442.0 406.0 371.2 335.5 320.6 318.3 318.0 268.2 321.5 70 75 322.9 502.5 482.3 450.7 410.6 365.1 334.0 311.1 313.3 320.3 262.6 316.5 75 80 330.5 509.9 497.3 455.4 411.7 361.1 331.9 303.3 306.6 321.6 272.5 326.2 80 85 343.9 505.3 496.0 453.8 409.7 359.2 325.8 299.1 298.7 317.7 287.4 344.9 85 90 353.7 498.3 488.6 449.9 407.7 358.4 319.5 297.8 292.8 312.3 297.4 359.8 1974 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 287.0 271.2 251.4 228.8 254.2 258.0 244.3 248.5 281.4 316.0 362.7 337.3 -85 -80 292.8 274.6 253.3 233.7 260.7 258.2 253.1 251.2 262.8 306.3 365.1 343.9 -80 -75 300.8 281.5 261.5 244.8 269.3 261.5 264.5 253.5 251.4 303.9 367.7 351.5 -75 -70 308.2 291.6 277.3 262.0 276.1 270.0 273.1 258.0 270.5 323.9 370.6 355.6 -70 -65 315.6 300.9 294.4 281.3 281.3 281.5 279.6 273.8 317.4 361.5 373.7 357.0 -65 -60 322.7 303.3 303.0 296.4 288.4 290.9 289.6 306.3 361.3 392.0 374.5 357.9 -60 -55 325.2 296.8 299.2 301.3 298.7 296.0 307.2 347.4 373.2 395.6 368.8 356.0 -55 -50 317.8 286.9 289.1 296.1 308.1 299.3 328.5 378.4 358.8 378.6 355.8 345.3 -50 -45 301.3 280.7 279.8 285.9 310.0 303.7 343.2 385.7 345.8 361.0 340.2 325.4 -45 -40 282.1 277.7 272.5 275.7 302.4 308.3 343.1 370.8 345.2 350.8 327.5 304.0 -40 -35 267.0 271.8 264.7 268.4 289.5 308.1 328.1 345.3 344.1 341.5 317.6 290.5 -35 -30 258.2 260.9 257.3 263.6 277.8 300.5 306.9 320.0 331.0 327.6 308.5 286.3 -30 -25 253.9 250.4 253.4 260.5 270.7 288.0 289.0 300.1 310.8 312.4 299.7 285.4 -25 -20 251.3 246.3 253.6 259.1 267.5 275.1 277.2 285.2 293.9 299.6 291.5 281.3 -20 -15 249.0 248.8 254.5 258.1 265.0 264.7 268.5 272.8 281.3 287.0 283.1 272.6 -15 -10 246.7 251.8 253.6 255.9 260.7 257.2 259.6 262.2 268.7 272.1 272.6 263.0 -10 -5 244.7 250.1 252.4 252.0 254.8 252.5 251.7 255.2 256.5 257.8 260.4 255.9 -5 0 243.3 244.2 253.0 248.9 250.8 251.1 248.1 253.4 249.7 249.3 249.1 251.3 0 5 242.4 240.1 255.5 250.8 253.3 254.3 251.1 256.6 250.5 247.6 242.3 247.0 5 10 243.0 243.6 258.5 259.0 263.4 262.5 259.6 262.0 256.1 249.7 241.9 241.8 10 15 246.2 255.1 262.4 270.0 277.3 273.3 269.2 266.8 261.9 253.0 246.2 237.3 15 20 252.4 269.3 269.2 279.2 289.7 283.3 276.4 270.4 266.5 257.0 251.0 236.4 20 25 261.9 281.6 279.9 286.2 298.3 291.2 281.3 275.1 271.1 261.3 253.7 241.6 25 30 275.9 293.9 295.2 296.7 305.7 299.2 287.3 283.5 277.5 265.6 256.7 254.1 30 35 295.8 312.5 315.0 316.4 316.2 310.5 297.0 295.2 285.5 271.5 265.5 273.7 35 40 320.7 339.6 338.9 344.2 332.4 325.8 309.7 305.4 293.1 280.9 281.5 298.0 40 45 345.8 369.9 364.7 372.4 353.0 342.1 322.5 311.2 300.3 294.3 300.9 322.2 45 50 365.5 395.5 386.8 394.1 374.0 355.3 332.8 315.3 308.9 309.2 318.9 341.6 50 55 378.2 411.0 399.4 408.5 392.0 362.9 339.0 321.8 317.9 320.1 333.9 354.7 55 60 386.1 414.7 402.5 419.1 404.8 366.3 340.2 328.4 321.7 323.8 344.8 362.4 60 65 391.5 407.4 406.2 428.3 412.3 368.2 337.6 328.6 316.9 322.8 347.2 365.0 65 70 394.6 393.9 420.4 437.9 416.2 371.0 334.2 320.8 308.1 323.0 339.5 363.3 70 75 395.6 383.7 444.0 448.5 419.6 374.7 332.1 313.1 302.0 326.4 327.2 361.3 75 80 396.6 385.1 466.2 459.1 426.0 377.8 329.8 313.5 299.2 328.5 319.4 364.8 80 85 399.3 396.7 476.9 468.1 435.1 378.7 325.8 321.1 295.7 325.5 320.1 375.2 85 90 402.3 407.5 478.5 473.2 442.0 378.1 321.8 328.2 291.9 320.5 323.9 384.8 1975 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 297.9 265.2 267.2 273.5 271.0 256.7 264.4 263.7 276.9 322.0 329.5 322.0 -85 -80 303.6 268.8 266.9 273.6 281.1 267.4 271.0 266.5 269.7 309.2 333.6 327.4 -80 -75 310.2 274.2 272.4 277.1 293.2 280.8 280.1 270.0 265.1 305.2 340.2 334.7 -75 -70 315.3 281.7 287.3 285.5 300.5 289.2 289.0 276.4 276.4 329.3 349.2 340.9 -70 -65 321.7 293.8 306.2 296.6 304.4 293.5 298.7 291.5 309.6 374.1 359.7 345.7 -65 -60 331.0 308.7 317.0 304.9 311.7 300.6 311.4 317.3 352.2 406.8 366.4 349.4 -60 -55 337.9 318.1 312.8 305.6 323.0 313.9 324.9 346.4 381.2 403.0 362.4 349.2 -55 -50 334.3 314.8 298.4 299.2 328.4 326.1 333.2 364.8 382.5 373.7 347.0 340.3 -50 -45 320.3 300.5 284.3 288.8 317.2 325.7 331.7 364.0 363.4 348.1 327.7 321.5 -45 -40 303.9 284.1 275.7 278.1 292.4 310.5 320.8 346.6 340.2 337.2 312.8 298.8 -40 -35 291.6 273.2 270.8 269.8 268.9 289.7 305.0 321.7 321.9 330.6 303.9 282.0 -35 -30 283.8 269.5 267.5 264.4 258.1 273.6 288.9 297.9 307.8 317.4 297.5 276.0 -30 -25 277.2 269.0 265.4 261.0 258.0 264.8 274.1 278.7 294.7 299.5 289.7 277.2 -25 -20 270.6 267.4 264.0 257.8 258.8 259.5 261.6 263.6 280.8 283.1 279.8 278.4 -20 -15 265.1 263.5 262.1 254.7 255.2 254.7 254.1 252.6 267.1 269.2 270.3 274.3 -15 -10 261.6 260.1 259.2 253.5 250.6 252.0 254.1 248.8 258.4 257.3 264.6 266.1 -10 -5 258.5 258.6 257.0 256.1 251.6 254.5 262.0 254.4 259.2 249.7 264.5 258.4 -5 0 254.0 256.7 256.2 260.8 259.2 261.2 272.9 266.7 268.0 248.5 267.0 254.5 0 5 247.6 251.5 255.5 263.3 267.4 267.0 279.7 277.3 276.5 251.7 266.6 253.6 5 10 241.1 244.9 253.9 262.0 270.6 268.6 279.2 279.0 277.7 254.7 261.4 253.1 10 15 237.1 241.5 253.2 260.3 270.2 268.4 275.1 273.3 272.7 256.5 255.6 252.0 15 20 237.7 245.3 257.2 264.0 273.2 272.1 274.1 268.8 267.7 258.7 254.4 251.6 20 25 245.5 256.6 269.9 277.6 284.9 282.8 279.2 271.6 267.9 262.5 258.6 254.8 25 30 262.4 275.5 291.3 299.4 303.1 298.5 288.5 281.2 274.6 267.3 266.9 263.8 30 35 286.1 302.6 318.4 323.6 322.3 314.6 298.9 292.5 284.7 273.2 278.3 279.8 35 40 309.9 334.4 346.3 346.5 340.8 328.5 309.4 301.2 293.5 281.9 292.4 301.0 40 45 329.3 363.9 372.2 369.4 360.5 340.6 320.4 307.2 299.0 294.6 307.2 322.3 45 50 350.2 386.0 396.3 394.5 380.6 351.3 331.2 313.1 303.1 308.1 319.9 337.5 50 55 381.7 402.4 418.3 419.7 395.5 359.4 338.3 319.4 307.9 315.2 328.4 342.3 55 60 418.9 418.6 436.2 438.4 400.5 364.6 339.2 322.5 311.8 311.1 331.2 338.1 60 65 441.2 437.9 449.4 447.4 398.6 368.2 336.1 319.7 311.0 299.9 327.7 329.9 65 70 432.7 456.9 459.8 448.9 397.6 373.3 334.2 313.0 305.5 291.1 318.0 322.7 70 75 403.2 469.2 469.4 446.2 400.8 379.7 335.0 305.8 297.2 288.5 303.5 320.6 75 80 380.6 470.5 478.2 439.4 405.3 383.5 334.2 298.4 286.1 287.1 286.3 325.6 80 85 380.2 463.4 484.4 428.8 407.3 382.6 328.5 290.3 272.9 281.8 269.9 335.3 85 90 390.2 456.1 487.2 420.3 407.3 379.7 322.3 284.1 262.9 275.7 259.6 343.2 1976 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 289.9 259.0 248.3 266.3 270.9 270.2 269.3 309.0 274.4 282.0 336.5 316.5 -85 -80 292.2 267.4 259.9 273.6 277.3 273.3 272.2 309.0 261.2 282.2 340.6 318.7 -80 -75 295.4 278.8 274.9 283.2 285.9 279.6 278.3 312.8 253.2 285.7 346.4 322.3 -75 -70 301.5 288.8 285.8 290.8 293.0 288.8 287.8 323.6 268.9 298.1 352.9 327.9 -70 -65 314.1 296.7 291.9 296.6 299.5 299.1 300.4 338.4 308.6 320.4 360.0 337.2 -65 -60 330.6 303.7 296.2 302.3 307.8 308.2 313.3 348.0 350.6 346.1 365.3 350.1 -60 -55 339.3 308.4 298.4 306.2 316.0 314.3 322.4 346.4 369.9 366.3 364.9 360.4 -55 -50 330.4 307.1 295.6 303.4 317.5 315.5 325.4 338.4 364.5 374.5 357.0 358.0 -50 -45 307.8 298.6 287.6 292.5 308.4 310.3 322.4 331.6 351.1 370.0 343.8 339.2 -45 -40 285.9 285.4 278.8 279.6 292.7 300.4 315.5 325.7 341.0 356.8 329.8 312.1 -40 -35 275.0 272.4 272.9 271.7 278.9 289.8 307.4 316.6 331.8 340.2 317.6 290.1 -35 -30 272.8 264.7 269.2 269.3 271.3 282.5 300.0 304.9 318.7 324.9 307.5 281.4 -30 -25 271.6 263.3 265.0 267.1 267.4 277.7 292.1 294.1 303.2 312.6 297.9 281.9 -25 -20 267.5 264.5 260.6 261.6 263.3 272.0 281.4 284.7 288.4 300.3 286.9 280.2 -20 -15 262.9 264.0 258.7 255.3 258.6 263.6 268.0 273.8 274.7 284.8 273.7 270.2 -15 -10 260.7 261.7 260.9 253.5 256.0 256.5 256.9 261.8 264.2 269.2 261.6 256.1 -10 -5 260.4 260.6 264.4 258.2 257.7 256.5 255.4 255.8 261.8 262.1 256.3 247.0 -5 0 260.0 260.6 264.6 265.6 263.0 265.5 264.8 261.5 268.7 266.3 258.3 246.4 0 5 258.2 259.0 261.2 271.0 268.8 278.0 278.0 274.3 278.4 274.4 261.8 249.5 5 10 256.0 255.6 259.4 273.3 272.8 286.3 285.1 283.0 282.4 277.0 261.0 249.8 10 15 254.5 253.9 263.2 274.6 275.3 287.4 282.8 281.7 279.2 272.7 256.6 247.6 15 20 253.6 257.1 271.1 277.9 278.9 285.0 276.9 275.5 274.2 267.6 253.7 247.7 20 25 255.3 265.2 280.0 285.5 286.3 285.5 275.9 273.2 272.5 267.0 255.9 253.8 25 30 265.1 278.4 291.0 298.7 298.4 292.1 282.8 278.3 275.3 271.4 263.8 265.7 30 35 287.2 298.2 308.9 317.2 314.2 304.2 294.4 287.0 281.9 278.2 276.4 281.6 35 40 317.6 325.5 335.7 339.2 332.1 319.9 306.3 295.3 291.8 286.2 291.7 301.4 40 45 345.6 356.7 366.3 362.3 350.6 337.5 317.3 303.5 303.6 296.4 306.6 324.1 45 50 363.6 383.1 392.0 385.1 368.5 353.1 328.5 312.5 313.5 309.0 317.8 343.8 50 55 373.5 397.1 408.1 406.3 384.5 362.0 337.3 318.7 315.4 320.1 323.6 351.2 55 60 378.6 400.2 414.6 423.3 395.9 362.8 339.2 316.5 307.7 322.8 324.1 343.0 60 65 375.4 401.9 414.1 433.6 401.2 360.1 333.6 306.8 298.9 314.9 321.5 327.6 65 70 359.5 409.7 412.0 439.2 401.2 360.4 326.0 298.1 298.9 301.8 319.1 317.9 70 75 337.3 421.1 416.8 445.4 400.4 364.9 322.4 296.7 305.8 290.0 319.8 321.0 75 80 324.5 426.2 435.7 456.3 403.5 368.5 322.0 299.1 306.4 281.6 324.0 334.0 80 85 328.1 420.6 464.7 469.8 410.5 367.3 321.1 299.1 294.2 274.9 329.0 349.2 85 90 337.5 412.4 487.0 479.3 416.4 364.0 319.3 296.9 280.1 270.0 332.1 359.0 1977 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 286.6 263.5 264.8 261.5 277.7 268.4 278.2 287.0 261.8 285.4 341.1 339.5 -85 -80 293.3 271.1 268.9 260.1 277.7 279.0 280.8 285.4 262.0 292.3 337.1 346.7 -80 -75 300.6 279.7 276.4 262.7 280.4 291.9 286.6 284.4 264.4 303.5 335.8 353.7 -75 -70 305.1 285.3 286.3 274.2 287.9 300.3 296.4 289.5 276.5 318.9 344.1 354.5 -70 -65 310.9 291.3 296.7 293.5 298.9 305.4 309.4 305.8 304.5 338.4 361.1 350.7 -65 -60 322.1 300.8 303.9 312.1 308.6 313.8 322.6 330.3 342.5 357.7 375.4 348.2 -60 -55 333.7 309.7 303.9 319.2 312.4 326.8 333.7 351.3 374.4 370.9 376.0 347.3 -55 -50 334.8 310.6 296.9 311.5 310.3 335.9 341.9 359.8 386.0 372.9 362.7 342.3 -50 -45 321.9 301.9 288.2 295.9 305.9 332.6 345.5 356.2 377.9 364.4 345.8 329.3 -45 -40 302.6 289.1 282.1 282.1 301.9 317.7 340.6 347.3 361.4 351.2 333.2 313.2 -40 -35 286.7 278.2 278.0 274.9 296.9 300.2 324.4 336.1 344.4 336.8 323.5 301.3 -35 -30 277.4 270.5 272.8 271.5 287.4 286.7 300.9 320.0 326.3 321.1 311.6 294.9 -30 -25 270.7 264.0 264.8 266.9 273.2 276.1 278.3 298.4 305.6 303.0 295.6 289.0 -25 -20 263.0 257.5 256.2 259.0 258.9 265.5 262.1 275.7 283.9 283.3 278.2 279.4 -20 -15 254.4 251.9 250.7 250.8 249.9 255.2 252.8 258.8 265.9 265.7 263.7 267.6 -15 -10 247.1 248.4 249.8 246.6 247.5 249.0 248.8 252.5 257.4 256.3 256.7 259.0 -10 -5 242.6 246.2 251.1 247.3 249.5 250.1 250.5 256.6 260.9 258.5 258.6 257.1 -5 0 240.4 242.8 251.2 250.9 253.5 257.3 257.8 266.3 270.8 267.5 264.4 259.7 0 5 239.6 238.3 250.1 254.9 258.9 266.7 267.8 274.4 277.4 273.1 265.4 261.3 5 10 239.5 236.5 251.4 259.3 266.0 274.9 275.4 276.9 275.4 269.8 258.1 257.5 10 15 240.5 240.1 257.3 265.8 274.2 281.1 277.8 275.0 268.4 262.0 247.7 249.0 15 20 243.7 248.1 266.4 275.8 282.7 286.4 277.1 273.1 263.7 257.7 242.8 241.4 20 25 252.3 259.3 276.9 289.8 292.8 292.4 278.5 274.5 265.4 260.3 246.8 241.7 25 30 271.4 277.6 290.4 307.6 307.4 301.6 286.0 280.6 273.2 268.1 256.4 254.4 30 35 303.4 308.6 311.3 328.7 328.2 315.2 299.0 290.6 283.8 277.8 267.6 277.7 35 40 342.1 349.9 340.7 351.1 352.2 332.0 313.2 302.1 293.1 287.2 280.0 304.1 40 45 374.1 388.6 373.9 373.1 373.6 348.9 326.1 313.2 299.8 296.1 295.1 325.0 45 50 390.6 412.8 404.3 394.3 388.5 362.4 337.4 323.6 306.9 305.0 312.2 338.0 50 55 395.5 424.0 428.6 414.0 397.6 370.6 345.9 332.1 316.0 314.0 326.6 346.3 55 60 397.2 433.2 446.3 430.5 403.2 373.6 348.6 334.9 323.2 321.4 332.3 351.1 60 65 397.3 445.7 457.7 442.9 406.3 371.9 344.3 329.4 322.0 325.4 328.2 348.0 65 70 391.5 457.9 463.7 452.1 406.6 367.6 337.2 318.8 312.2 326.4 320.4 334.1 70 75 380.6 464.1 466.8 458.8 406.2 363.8 332.9 310.1 300.8 326.1 317.4 317.1 75 80 373.0 463.1 470.8 461.6 409.5 362.8 332.4 307.0 293.0 324.9 322.2 310.9 80 85 374.3 458.7 477.6 460.6 416.8 364.7 332.7 307.6 288.3 321.8 331.1 320.0 85 90 379.4 455.4 483.3 458.5 423.5 366.7 332.4 308.7 285.9 318.4 337.9 332.2 1978 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 303.2 291.8 281.8 249.1 271.3 266.4 278.6 287.6 289.6 312.6 363.6 332.1 -85 -80 307.7 296.8 282.5 246.0 271.4 268.0 280.8 286.3 276.7 300.4 356.7 326.8 -80 -75 312.9 303.8 287.3 252.9 274.5 273.4 286.3 287.4 269.2 297.1 352.7 324.4 -75 -70 317.3 310.7 297.2 277.6 282.3 283.0 296.4 295.8 284.5 320.4 360.5 332.1 -70 -65 322.7 316.2 306.1 309.4 292.9 293.7 309.8 313.2 321.5 363.3 377.4 346.1 -65 -60 329.6 317.5 305.9 325.2 301.4 301.8 322.6 333.7 357.7 396.2 388.6 354.8 -60 -55 332.6 312.1 296.6 315.0 304.6 308.1 332.6 349.1 372.4 398.0 381.9 351.0 -55 -50 325.9 301.8 287.7 292.5 304.5 315.5 340.2 357.2 369.4 379.2 360.8 337.4 -50 -45 310.8 292.2 286.2 277.7 303.7 322.5 345.0 359.0 365.0 362.4 339.4 323.7 -45 -40 295.0 286.6 289.1 275.9 301.3 322.8 342.6 353.7 363.4 353.4 325.7 315.1 -40 -35 284.8 283.5 287.5 277.5 294.0 311.7 328.7 338.6 354.2 342.2 316.7 309.7 -35 -30 279.3 279.2 278.3 272.6 280.7 293.0 306.5 315.9 332.5 323.1 307.0 302.8 -30 -25 273.7 272.7 266.5 261.8 265.4 275.4 284.5 293.3 307.4 302.7 295.4 291.5 -25 -20 266.0 265.7 258.6 252.6 254.9 264.8 269.7 277.0 288.5 287.8 283.6 277.6 -20 -15 258.7 260.8 256.5 250.4 252.8 261.2 263.2 267.6 276.6 277.1 273.2 265.2 -15 -10 255.3 259.5 258.4 254.6 256.5 260.9 262.5 262.9 269.7 268.9 265.3 257.0 -10 -5 256.1 260.9 262.1 261.4 261.0 262.6 265.4 262.4 269.0 266.1 261.9 253.3 -5 0 257.2 261.1 265.1 266.8 263.4 266.1 269.9 266.7 274.2 269.9 263.3 252.1 0 5 254.3 257.1 264.9 268.7 264.6 270.6 273.4 272.5 279.6 274.4 265.4 250.9 5 10 247.3 249.8 260.0 267.0 267.0 273.8 274.4 275.0 278.2 272.1 264.3 249.0 10 15 240.0 243.4 253.1 263.9 270.8 273.6 273.3 272.4 270.3 263.7 260.1 248.1 15 20 236.9 242.3 250.7 263.8 274.9 271.7 272.7 268.2 263.4 257.7 256.5 250.7 20 25 241.1 249.7 259.5 272.0 280.2 272.9 275.0 268.0 264.0 259.7 256.8 257.1 25 30 255.0 268.5 281.7 290.2 290.4 281.2 281.5 274.6 271.9 267.0 261.4 266.6 30 35 280.5 298.7 312.7 315.3 309.0 297.3 291.4 286.3 281.6 274.0 269.7 279.0 35 40 315.0 333.6 343.2 342.8 335.3 318.5 303.8 299.0 289.1 279.4 280.0 295.6 40 45 349.1 364.3 366.1 369.4 363.0 339.5 317.9 309.7 295.8 287.2 292.3 315.4 45 50 370.9 387.2 381.6 393.3 384.6 355.3 331.4 318.2 304.3 299.4 307.0 332.6 50 55 375.9 405.2 394.0 411.8 396.5 362.9 340.1 323.7 312.3 310.6 321.1 341.1 55 60 371.1 418.0 405.1 422.8 400.5 363.7 340.9 324.1 313.7 312.2 327.3 339.8 60 65 367.1 419.8 413.3 428.7 401.0 362.1 336.2 319.6 308.2 303.7 318.4 334.9 65 70 370.1 406.4 418.5 434.2 400.8 362.6 332.2 314.1 304.0 293.8 297.2 332.7 70 75 380.2 383.5 423.8 439.9 400.2 366.0 331.9 311.3 306.8 289.6 275.6 334.5 75 80 394.6 363.9 431.5 440.3 398.7 368.5 331.6 310.3 312.6 288.4 264.4 337.6 80 85 409.1 355.2 440.5 433.0 397.0 367.7 327.4 308.0 313.7 284.8 265.3 339.3 85 90 418.4 354.1 446.5 424.9 396.2 365.6 322.3 305.4 311.1 280.2 270.0 339.6 1979 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 282.3 281.9 266.2 275.2 273.1 268.2 262.7 264.1 261.4 315.4 346.2 330.0 -85 -80 282.6 279.5 268.3 278.2 273.9 272.6 269.9 262.7 255.5 308.1 340.8 330.5 -80 -75 283.8 280.1 273.9 283.6 277.6 280.5 280.4 262.5 253.4 307.9 338.3 332.4 -75 -70 289.4 288.4 282.9 290.4 285.6 289.7 290.3 269.1 266.9 328.1 347.2 337.6 -70 -65 302.8 302.0 292.1 296.7 295.8 298.5 299.1 286.4 297.6 364.5 365.9 346.5 -65 -60 320.7 311.7 296.5 301.5 304.0 306.9 309.8 311.8 332.6 395.9 381.1 356.0 -60 -55 332.7 311.6 294.3 303.9 307.9 316.0 324.0 337.0 356.3 404.7 379.8 358.9 -55 -50 329.6 305.0 289.3 303.3 308.2 324.7 338.1 354.3 366.4 394.4 364.0 349.8 -50 -45 313.6 297.9 286.3 299.4 306.6 328.6 344.0 361.1 370.4 378.8 347.1 331.8 -45 -40 295.9 291.1 285.3 293.0 302.9 323.5 336.0 358.3 370.8 363.9 338.0 313.8 -40 -35 284.1 281.7 282.5 285.6 296.0 310.3 318.1 346.5 361.4 346.4 332.9 301.9 -35 -30 277.6 269.8 275.5 278.2 285.8 294.8 300.7 327.5 339.9 325.4 323.0 295.0 -30 -25 271.9 259.7 266.1 271.0 274.5 281.9 289.9 305.6 314.1 305.8 305.6 288.0 -25 -20 264.4 253.7 258.0 263.9 264.9 272.3 282.3 285.2 293.1 290.4 286.1 278.4 -20 -15 256.9 250.6 253.4 257.6 258.6 264.2 272.2 269.8 278.8 276.5 271.0 268.7 -15 -10 252.0 249.0 252.3 254.2 255.6 257.5 260.3 261.2 269.1 263.9 263.0 262.4 -10 -5 250.2 249.0 253.3 254.9 255.7 254.7 254.3 261.3 264.1 257.5 260.5 260.1 -5 0 249.4 250.2 254.9 259.1 259.5 257.4 259.3 268.7 264.7 259.2 258.7 258.7 0 5 247.7 250.8 256.2 265.2 266.9 264.0 270.9 277.3 269.2 263.3 254.2 255.4 5 10 245.6 249.4 257.1 271.6 275.2 270.7 278.8 280.6 273.7 263.7 248.3 250.5 10 15 245.1 249.0 259.2 277.8 281.6 275.6 278.5 278.1 276.0 260.9 245.8 246.9 15 20 248.5 254.2 265.3 284.3 286.7 280.6 275.4 274.8 276.7 260.7 249.0 247.3 20 25 257.7 267.7 278.2 293.3 295.3 288.2 277.6 276.4 278.2 265.7 255.8 253.2 25 30 274.6 289.6 300.1 307.6 311.6 299.5 288.0 284.2 282.7 272.4 263.4 265.2 30 35 300.5 318.2 329.8 328.7 333.8 313.8 302.0 295.0 289.9 277.9 272.7 282.7 35 40 331.7 350.1 361.5 355.8 354.7 329.7 314.9 304.2 296.4 283.7 285.3 303.2 40 45 360.0 379.7 388.3 385.7 369.1 346.2 326.6 310.9 300.4 293.4 300.1 323.2 45 50 378.5 402.2 409.0 413.1 378.3 361.2 338.2 317.5 304.5 305.6 313.1 340.8 50 55 384.5 413.4 427.8 433.1 388.3 370.6 347.2 324.7 310.4 314.1 322.4 358.7 55 60 379.1 414.1 446.5 443.4 401.1 372.3 348.6 328.0 315.1 314.9 330.5 380.7 60 65 363.8 411.4 461.8 447.1 411.5 369.0 342.3 324.0 313.5 313.3 342.0 404.7 65 70 341.4 413.8 470.5 450.6 414.6 365.8 335.3 315.6 306.1 317.7 358.1 423.2 70 75 321.0 424.5 474.1 457.0 412.2 365.3 332.9 308.7 298.0 327.1 376.0 430.1 75 80 312.8 437.6 477.6 463.5 412.0 365.3 332.1 305.4 291.5 331.4 390.7 426.9 80 85 318.5 446.0 483.5 466.3 417.6 363.4 328.6 303.7 286.0 324.6 398.7 420.8 85 90 327.4 448.7 488.8 466.2 423.9 360.9 324.3 302.5 281.9 314.9 401.1 417.0 1980 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 305.9 284.1 280.8 282.5 269.9 285.0 280.8 333.1 258.3 258.7 311.7 328.4 -85 -80 307.6 286.9 289.3 282.0 275.1 283.5 283.5 333.5 248.9 250.4 311.3 329.1 -80 -75 310.9 292.9 299.8 284.8 282.8 285.8 289.4 329.7 242.6 248.8 310.6 331.0 -75 -70 316.8 302.0 306.3 293.7 290.4 295.9 299.3 322.4 254.2 269.4 312.8 334.2 -70 -65 325.9 311.9 308.3 305.2 297.7 309.9 312.6 319.1 288.2 312.0 322.5 337.5 -65 -60 334.5 317.8 309.7 311.8 305.5 319.8 326.1 325.7 331.4 356.0 338.9 337.7 -60 -55 336.4 316.7 312.0 309.4 312.3 322.3 336.5 338.6 362.1 376.4 353.3 331.6 -55 -50 329.1 310.8 311.3 300.7 314.0 320.1 341.5 346.8 369.4 368.7 355.8 319.2 -50 -45 316.6 304.1 303.4 291.4 308.3 317.5 340.4 342.4 359.9 349.4 345.1 305.1 -45 -40 305.3 297.1 289.3 285.1 296.9 313.2 331.6 328.0 345.1 333.7 327.7 294.0 -40 -35 296.6 288.4 274.3 280.3 283.6 302.6 314.6 311.9 329.1 323.1 310.1 286.6 -35 -30 287.5 278.5 263.8 274.1 271.0 285.0 292.6 298.4 312.2 311.8 295.5 280.2 -30 -25 276.5 270.1 258.9 264.6 259.8 265.6 271.6 286.0 295.7 298.0 283.6 272.5 -25 -20 266.6 264.9 256.1 253.7 250.9 251.8 256.6 273.4 281.5 284.0 273.2 265.2 -20 -15 261.1 261.1 253.1 245.9 246.0 246.9 250.1 262.9 270.7 272.2 264.1 260.9 -15 -10 260.4 257.9 250.6 245.2 246.5 249.6 251.5 259.2 265.4 265.0 258.7 258.9 -10 -5 260.8 255.8 251.1 251.3 251.1 256.2 258.7 264.2 268.4 265.3 259.4 257.1 -5 0 258.1 254.7 253.5 259.1 257.5 262.6 268.1 274.0 277.6 271.5 264.2 255.0 0 5 251.7 252.3 253.8 262.6 263.5 265.7 274.9 281.4 285.3 276.8 267.0 253.8 5 10 244.1 247.9 250.2 260.5 268.4 265.9 276.6 281.5 284.7 276.1 264.2 254.0 10 15 238.9 243.9 246.2 257.3 272.8 266.4 274.9 277.0 277.5 270.3 258.7 254.6 15 20 238.8 243.7 247.8 260.3 278.6 270.9 274.1 274.1 271.4 265.2 255.8 255.3 20 25 245.5 251.4 259.9 273.4 288.4 280.9 277.8 276.8 271.5 265.3 258.1 259.1 25 30 261.3 270.6 284.2 295.4 304.2 294.9 286.8 285.1 277.7 270.8 265.2 270.9 30 35 287.6 302.4 317.9 322.7 325.8 311.0 299.4 296.2 286.4 279.9 275.2 291.2 35 40 320.8 341.9 354.4 351.6 349.7 329.6 313.3 306.6 294.5 290.0 286.6 313.5 40 45 352.4 378.5 386.9 379.5 370.7 350.2 327.2 314.8 302.5 300.2 298.7 329.3 45 50 375.2 401.5 412.1 403.1 386.6 368.9 339.7 320.9 312.0 310.5 311.2 337.5 50 55 388.3 408.2 430.2 418.0 398.8 378.6 347.5 325.2 320.9 319.4 323.4 344.4 55 60 395.5 404.1 441.8 424.4 409.0 376.7 347.9 326.2 322.6 322.5 331.0 351.5 60 65 397.7 398.4 446.5 430.2 416.3 368.6 342.3 323.1 314.1 316.7 330.1 349.4 65 70 393.0 397.1 446.7 442.7 418.2 362.8 335.8 317.2 301.3 305.2 322.2 330.6 70 75 383.5 399.5 447.1 458.4 414.6 362.6 332.2 311.1 291.7 294.0 315.0 303.7 75 80 375.5 400.3 451.7 465.5 408.7 364.3 329.7 305.4 285.9 286.2 315.8 288.0 80 85 373.6 396.7 460.1 459.1 404.4 363.4 325.0 299.3 280.5 281.4 324.0 292.2 85 90 375.1 392.1 466.8 449.0 402.9 361.4 320.4 294.9 275.8 278.5 332.0 303.6 1981 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 282.6 263.7 250.5 244.6 264.1 255.2 256.4 278.3 278.6 279.3 306.1 317.1 -85 -80 282.4 268.1 254.7 246.6 269.5 260.9 262.5 280.3 274.3 273.2 298.1 318.9 -80 -75 284.1 275.7 261.3 250.0 277.0 269.9 271.4 283.4 271.9 272.1 294.3 323.5 -75 -70 290.5 286.0 269.9 256.0 284.0 278.7 280.7 290.4 281.7 288.7 305.8 331.3 -70 -65 302.1 297.4 281.3 266.5 291.0 286.1 290.2 306.2 307.4 324.2 330.2 339.8 -65 -60 314.4 306.2 294.1 280.7 299.3 293.6 301.3 330.4 339.3 362.8 351.8 344.6 -60 -55 319.7 307.9 302.2 292.7 306.3 302.9 314.3 354.1 360.4 383.2 357.3 342.6 -55 -50 314.0 301.8 300.6 295.2 307.5 312.8 326.6 365.9 363.0 379.7 348.7 334.2 -50 -45 301.2 291.2 291.4 286.9 300.8 319.0 332.7 361.8 353.4 365.2 337.8 322.1 -45 -40 289.0 280.6 281.8 275.0 290.7 318.1 329.4 347.1 341.6 352.9 330.8 309.6 -40 -35 281.8 272.8 276.9 267.5 283.1 310.7 318.3 329.7 331.3 343.5 324.3 298.8 -35 -30 278.2 268.8 275.7 266.0 278.8 300.2 304.8 314.0 320.4 330.9 314.0 289.9 -30 -25 274.7 267.6 273.4 266.0 274.6 289.3 292.6 299.5 307.7 313.9 301.5 283.1 -25 -20 269.1 265.9 267.1 263.2 267.8 278.7 281.2 284.5 293.9 296.1 289.1 277.9 -20 -15 262.0 261.7 259.8 258.2 260.0 268.3 269.3 269.8 279.8 280.9 277.1 272.0 -15 -10 256.4 256.1 255.9 254.5 254.9 259.4 258.2 258.9 267.7 269.2 265.1 263.6 -10 -5 254.6 252.4 256.8 254.1 254.2 255.1 253.4 256.2 261.7 261.8 255.6 253.6 -5 0 255.6 251.6 259.4 255.9 257.4 256.7 257.4 262.0 262.3 258.2 251.2 245.8 0 5 255.9 251.3 259.8 258.9 262.8 262.6 266.7 270.8 265.9 257.3 250.8 243.1 5 10 253.7 249.8 258.6 263.4 269.1 269.3 274.4 275.9 268.6 258.5 251.6 244.1 10 15 250.6 249.0 259.5 270.1 275.1 274.5 276.8 276.3 269.7 261.4 253.1 246.0 15 20 250.9 251.9 265.3 279.2 281.6 278.6 276.8 275.2 270.6 265.0 256.5 248.3 20 25 258.2 261.2 277.8 291.0 290.3 284.3 279.5 277.4 273.1 267.4 262.0 254.3 25 30 273.9 279.3 297.6 307.5 304.3 294.3 287.7 284.7 278.2 270.1 268.4 268.0 30 35 297.6 306.9 324.5 329.5 325.1 309.8 299.6 295.6 286.2 276.4 276.8 288.2 35 40 326.1 340.6 354.4 355.2 350.0 329.4 312.1 306.6 295.3 286.7 289.2 308.1 40 45 352.8 373.3 381.3 379.8 372.9 349.0 323.8 315.1 303.4 298.7 306.0 321.5 45 50 370.9 398.4 402.2 399.7 388.7 363.1 334.3 320.2 310.0 309.6 322.8 330.2 50 55 376.9 414.9 418.4 414.2 397.2 368.2 341.2 321.4 314.4 317.9 332.6 342.7 55 60 372.6 426.0 430.4 423.2 401.1 365.0 341.4 318.0 314.3 322.5 332.3 361.3 60 65 363.8 436.0 436.0 427.6 402.4 358.9 335.6 310.7 307.9 321.9 326.5 377.0 65 70 356.1 446.0 434.4 429.2 401.0 355.1 328.7 302.9 298.6 316.0 324.4 379.7 70 75 353.1 453.8 430.9 430.5 397.2 354.4 324.7 297.0 291.0 307.7 331.5 371.3 75 80 356.0 455.4 433.3 433.0 393.5 353.8 321.9 291.8 285.5 299.8 345.7 364.3 80 85 362.2 450.4 443.3 436.1 392.1 351.0 317.3 285.9 279.9 293.3 360.2 366.9 85 90 367.4 444.9 452.7 438.0 392.3 348.2 313.0 281.1 275.2 289.2 368.8 373.6 1982 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 271.9 272.3 256.8 283.7 242.3 280.1 289.9 269.9 231.1 239.6 304.4 315.8 -85 -80 276.8 277.6 258.9 280.5 248.9 290.5 298.4 274.1 229.8 228.3 303.8 315.3 -80 -75 283.1 284.9 266.2 279.0 257.8 303.4 309.5 279.2 230.8 223.1 306.1 316.3 -75 -70 289.1 291.9 280.6 285.8 266.0 309.6 316.2 285.2 242.6 242.6 316.0 321.0 -70 -65 297.1 298.1 297.6 304.0 275.7 306.2 315.4 297.0 271.5 290.1 333.3 328.7 -65 -60 308.7 302.8 308.4 326.8 290.3 299.1 309.0 315.6 312.0 346.5 349.7 336.2 -60 -55 319.5 304.0 306.7 339.7 307.0 296.8 303.9 333.2 345.9 382.5 355.6 338.5 -55 -50 322.4 300.9 295.9 332.6 316.7 301.8 306.0 339.7 358.0 386.2 347.8 332.7 -50 -45 314.9 294.3 284.7 309.9 312.7 308.4 313.7 332.7 350.0 369.9 333.1 320.0 -45 -40 301.8 286.5 278.5 286.9 299.1 309.6 318.9 319.9 334.9 350.0 320.5 305.5 -40 -35 289.3 279.5 276.2 275.0 286.8 303.3 314.4 309.0 321.8 331.8 312.6 293.9 -35 -30 279.9 274.8 274.4 273.6 281.0 292.1 300.9 299.7 310.5 313.5 306.5 285.9 -30 -25 272.8 272.3 271.2 273.4 277.6 278.6 284.0 287.6 297.8 295.1 297.9 279.1 -25 -20 266.4 269.3 266.3 267.1 270.5 264.8 268.8 271.9 282.9 279.2 284.7 271.0 -20 -15 259.6 263.5 260.8 256.9 259.6 253.1 257.7 257.9 268.9 267.6 269.3 262.8 -15 -10 253.1 255.2 255.7 249.5 250.6 247.7 252.5 252.6 261.0 262.7 259.0 257.9 -10 -5 247.9 248.2 252.4 248.8 249.5 250.9 255.1 258.9 262.7 265.5 259.5 257.6 -5 0 244.5 245.5 251.1 253.1 255.7 260.0 264.2 271.3 271.4 272.3 266.8 257.8 0 5 242.5 246.1 251.5 258.6 263.2 268.8 273.5 279.7 278.8 274.8 269.8 252.8 5 10 242.2 247.7 254.2 264.3 267.7 272.8 277.3 279.1 279.1 269.6 262.8 241.8 10 15 244.3 249.5 260.0 271.1 271.0 274.0 275.3 273.6 273.8 261.8 252.2 231.6 15 20 249.2 253.4 269.9 280.6 278.9 278.2 273.8 271.6 269.4 259.5 248.6 230.6 20 25 257.8 263.7 284.7 294.7 294.2 288.7 279.2 276.7 271.4 264.8 254.9 240.7 25 30 272.7 285.7 305.4 314.3 313.9 303.9 292.1 286.8 280.9 273.5 265.3 257.5 30 35 296.2 319.8 332.1 337.5 332.9 320.1 307.6 298.0 293.4 281.1 274.3 275.3 35 40 327.4 358.2 361.8 360.0 349.0 335.4 320.6 307.2 301.4 287.1 282.7 292.0 40 45 359.4 389.8 390.1 377.7 364.3 350.3 330.4 315.4 302.5 294.6 294.1 308.3 45 50 384.1 411.2 414.3 391.1 380.2 363.9 339.0 324.0 302.9 304.6 308.4 322.9 50 55 397.4 426.8 432.9 404.0 394.9 372.4 345.3 331.8 309.6 314.0 318.9 330.6 55 60 401.6 437.5 444.1 419.3 405.2 373.6 345.5 334.3 319.4 317.0 319.9 329.6 60 65 400.8 437.4 446.3 435.7 410.7 370.4 339.4 329.1 321.2 312.4 313.8 325.5 65 70 397.5 422.1 441.4 449.6 413.4 368.5 331.9 319.5 310.2 305.5 309.9 327.6 70 75 394.6 397.6 436.0 458.6 414.4 369.5 327.6 311.1 294.1 301.3 313.9 340.8 75 80 395.4 377.0 436.0 462.7 413.3 370.1 325.7 305.5 281.9 299.1 323.2 362.5 80 85 400.5 368.1 441.9 463.2 410.3 367.5 323.1 301.2 276.2 295.5 331.3 385.1 85 90 405.9 367.2 447.9 462.6 407.7 364.2 320.3 298.0 274.7 292.0 334.9 399.6 1983 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 288.6 278.2 270.1 263.6 267.7 266.2 278.1 268.9 256.7 231.6 302.9 307.6 -85 -80 294.4 283.9 273.0 260.8 268.4 266.5 273.2 267.0 248.3 219.8 295.2 312.7 -80 -75 301.0 292.4 278.6 261.7 271.7 270.0 271.8 268.0 244.5 216.0 291.9 319.6 -75 -70 305.1 300.4 287.8 272.6 280.0 278.9 281.3 276.7 259.2 240.2 304.6 324.6 -70 -65 308.6 305.4 300.7 292.2 293.9 292.2 299.4 293.4 292.2 292.4 330.4 327.7 -65 -60 314.6 305.5 313.6 310.4 309.7 305.3 314.7 310.7 326.2 347.9 353.2 329.9 -60 -55 321.8 301.4 319.1 316.9 320.4 313.1 318.8 321.8 343.4 377.3 359.5 329.9 -55 -50 324.3 296.0 313.5 310.3 320.1 314.7 316.0 328.0 345.1 376.1 350.3 325.4 -50 -45 318.1 291.3 300.4 298.0 309.1 312.7 316.9 333.6 345.1 362.8 337.1 316.0 -45 -40 305.2 286.5 287.0 287.8 294.1 309.4 323.1 336.9 347.3 351.7 326.5 304.6 -40 -35 291.3 279.8 278.3 281.0 281.4 303.6 324.4 331.4 342.3 340.7 315.9 294.0 -35 -30 280.9 271.9 273.5 274.0 272.3 292.6 312.2 315.3 323.8 324.1 303.5 284.8 -30 -25 274.3 264.7 268.4 264.1 264.4 277.2 289.8 294.7 299.1 304.5 291.9 276.5 -25 -20 269.5 259.0 261.0 253.9 256.1 261.6 268.2 276.9 279.1 287.5 282.6 269.5 -20 -15 264.5 254.7 254.4 248.8 249.6 251.0 255.6 264.4 267.1 274.7 273.6 264.2 -15 -10 259.7 252.9 252.8 250.8 247.8 247.9 252.4 257.1 261.1 265.0 263.6 259.3 -10 -5 256.4 254.3 256.5 256.9 250.9 251.5 254.6 255.4 259.2 259.1 255.4 253.2 -5 0 253.8 255.4 260.2 261.9 256.1 258.7 258.5 259.6 260.8 258.1 251.8 247.0 0 5 249.4 250.9 258.1 263.4 260.5 266.3 262.0 265.8 263.9 260.0 252.0 243.3 5 10 242.2 241.4 251.0 262.7 263.7 272.2 264.8 269.4 266.0 261.4 252.4 243.9 10 15 235.5 234.1 245.7 262.8 268.0 276.1 267.4 269.9 267.0 261.3 252.0 247.2 15 20 234.3 236.2 248.6 266.8 276.5 279.1 270.6 270.9 268.3 261.3 253.2 251.2 20 25 242.5 249.2 261.9 277.4 289.9 284.1 276.6 275.8 270.7 263.1 257.3 256.5 25 30 259.8 270.3 283.7 296.3 306.1 294.4 287.1 284.4 275.6 267.7 264.1 267.1 30 35 282.5 296.3 310.0 321.5 323.3 310.6 300.5 293.4 283.1 274.6 273.4 285.7 35 40 305.6 325.7 336.3 346.7 340.3 329.2 313.2 300.6 291.5 282.3 285.3 308.2 40 45 324.6 355.6 359.7 365.6 356.3 344.8 322.6 306.9 298.9 289.9 298.8 327.2 45 50 339.4 379.1 380.2 377.5 369.2 353.4 329.3 313.3 304.8 297.6 310.7 339.2 50 55 352.2 389.2 398.6 388.0 377.2 355.6 333.2 317.6 308.4 305.3 317.3 346.3 55 60 364.4 387.1 413.6 401.0 381.3 354.0 332.4 316.4 308.0 309.9 317.9 350.2 60 65 374.7 384.9 423.1 415.6 384.9 350.9 325.6 310.4 304.2 308.6 316.4 346.0 65 70 381.0 394.2 428.4 428.6 389.8 348.6 317.2 304.6 299.9 302.5 318.0 329.5 70 75 384.3 412.9 432.9 437.7 395.0 349.9 315.0 301.7 296.3 294.9 323.7 308.3 75 80 387.8 427.5 440.3 442.5 397.3 355.9 321.4 298.4 289.7 288.0 329.4 297.7 80 85 393.1 429.3 450.3 444.7 395.7 364.5 331.7 291.6 278.2 281.7 331.6 303.6 85 90 397.6 424.4 457.6 445.3 393.1 370.9 338.9 285.0 268.2 277.3 331.1 314.3 1984 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 279.8 263.7 264.5 257.8 287.7 280.3 276.2 261.3 232.8 224.8 281.8 305.0 -85 -80 288.2 268.8 272.9 257.9 290.2 278.1 274.1 255.4 223.9 219.7 262.9 305.6 -80 -75 299.3 277.3 283.4 260.8 295.5 280.0 275.7 251.6 218.3 216.8 253.5 308.6 -75 -70 307.3 287.8 289.9 269.9 302.4 291.7 286.9 259.1 230.9 228.3 277.2 314.6 -70 -65 309.9 297.9 290.8 284.6 308.2 311.5 306.4 280.3 267.5 262.3 326.4 321.1 -65 -60 308.6 303.8 288.1 299.4 310.7 331.1 326.8 306.8 316.2 312.5 367.6 323.9 -60 -55 305.4 302.3 283.8 306.0 309.3 342.3 341.0 327.6 354.6 355.5 374.9 321.4 -55 -50 301.7 295.0 278.8 300.7 306.1 342.3 348.7 339.7 369.7 370.0 355.0 315.8 -50 -45 298.3 286.5 274.6 288.0 303.1 333.4 352.4 346.3 367.2 358.5 332.8 309.8 -45 -40 294.1 279.4 272.3 276.2 299.8 319.1 350.4 348.0 358.7 339.4 320.0 304.1 -40 -35 288.0 273.5 271.4 269.7 293.3 302.5 338.2 339.9 348.0 325.1 310.9 298.0 -35 -30 279.9 268.4 269.2 266.8 281.8 286.0 315.5 319.9 333.6 314.6 300.0 290.7 -30 -25 271.6 265.2 264.4 263.4 267.9 271.6 289.7 294.7 315.2 302.3 289.3 282.4 -25 -20 265.1 263.7 258.0 258.1 256.5 260.2 268.6 273.3 294.7 286.4 280.5 274.2 -20 -15 260.2 261.8 252.6 253.3 250.8 251.8 255.4 260.1 275.6 270.6 271.6 266.8 -15 -10 255.4 257.5 248.8 250.6 249.5 246.4 249.3 254.2 262.7 260.9 261.5 260.7 -10 -5 249.7 250.9 245.5 249.5 249.5 244.9 248.9 254.0 260.4 260.2 254.6 257.2 -5 0 243.3 243.6 241.0 248.3 249.2 247.4 252.4 257.8 266.5 264.0 253.8 256.4 0 5 237.6 237.8 237.2 248.4 250.2 252.6 257.3 262.7 272.4 265.1 254.7 256.0 5 10 234.9 236.0 238.1 253.1 255.4 258.5 261.5 266.0 271.8 261.6 251.1 253.0 10 15 237.0 239.5 245.5 263.2 264.9 264.4 265.1 267.9 267.6 257.7 244.0 246.1 15 20 244.9 247.8 257.7 276.8 276.8 271.4 269.7 271.2 266.7 257.5 240.7 239.0 20 25 258.9 260.8 273.2 291.8 289.9 281.2 277.2 277.6 272.2 260.7 245.3 238.0 25 30 278.4 281.0 294.4 309.6 305.4 294.3 287.2 286.8 281.2 265.6 255.1 247.7 30 35 303.1 311.0 324.2 332.1 324.6 309.8 297.4 295.9 289.2 272.5 266.1 268.0 35 40 330.5 346.4 358.9 357.3 346.6 326.4 306.9 302.2 294.8 281.6 279.0 293.3 40 45 356.2 375.9 388.1 379.4 367.2 343.1 316.4 306.5 300.2 292.4 296.2 316.6 45 50 376.3 390.2 405.1 395.0 382.1 358.1 326.7 311.3 307.8 303.8 314.0 333.4 50 55 388.5 390.3 413.4 406.0 389.6 367.8 335.6 317.1 314.9 314.8 323.0 343.7 55 60 391.8 385.0 421.1 417.0 392.0 369.0 338.4 320.7 315.4 322.7 319.9 349.2 60 65 386.2 381.8 431.1 429.1 391.8 363.0 334.1 319.7 307.9 323.9 314.8 350.1 65 70 374.5 383.1 439.9 439.4 390.4 356.2 328.0 314.9 298.3 318.3 320.8 346.2 70 75 363.2 387.9 445.7 443.8 389.0 354.2 324.7 308.0 291.4 309.5 337.9 340.6 75 80 359.6 393.5 451.3 440.8 389.3 358.6 323.1 298.6 285.5 301.6 352.9 338.8 80 85 364.6 397.7 459.0 433.2 391.7 365.9 320.6 286.9 277.1 295.7 355.6 343.3 85 90 371.2 399.7 465.4 427.1 394.1 371.1 317.6 278.1 269.6 292.2 351.1 348.9 1985 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 278.8 257.6 254.8 254.2 279.5 248.2 301.9 264.2 229.0 213.9 237.1 292.1 -85 -80 284.4 258.1 255.6 249.6 285.9 254.8 309.7 263.3 216.0 197.4 224.6 286.7 -80 -75 292.9 262.5 261.1 252.0 294.5 264.4 320.3 265.8 210.0 189.6 219.7 286.4 -75 -70 300.9 273.8 273.8 269.7 300.2 273.7 327.0 275.2 229.8 213.3 241.0 297.9 -70 -65 306.6 289.3 290.4 295.3 301.5 283.3 324.9 289.6 273.8 265.9 286.3 312.8 -65 -60 308.8 300.6 301.8 310.9 300.4 295.9 314.5 300.9 317.6 318.6 329.8 316.8 -60 -55 307.0 301.9 300.9 306.8 299.3 309.6 303.1 304.3 336.5 342.6 344.6 307.0 -55 -50 302.1 295.6 290.0 291.2 297.6 315.6 298.7 304.8 332.4 339.3 330.1 293.8 -50 -45 295.6 287.8 277.7 278.3 292.5 307.0 301.1 308.8 324.1 330.0 307.3 286.2 -45 -40 288.7 280.8 270.2 272.8 283.4 287.1 302.1 313.2 320.5 324.9 293.1 283.0 -40 -35 281.5 273.8 267.6 270.4 273.5 268.6 295.1 308.4 315.0 318.7 287.8 278.7 -35 -30 274.2 266.8 266.5 266.0 265.8 260.4 281.7 292.7 303.0 306.4 284.4 272.5 -30 -25 266.8 261.7 263.8 259.8 260.8 260.2 268.5 274.8 289.3 292.2 280.4 268.4 -25 -20 260.1 258.8 258.8 255.1 256.7 259.8 260.1 263.6 279.6 281.1 276.8 267.7 -20 -15 255.0 256.6 253.7 253.8 253.0 255.0 256.3 260.9 272.3 271.9 272.8 266.0 -15 -10 252.9 254.8 252.3 255.5 251.8 250.4 256.5 262.9 265.7 263.9 266.7 259.8 -10 -5 254.2 254.8 256.1 259.6 255.7 253.1 262.2 267.3 263.8 261.4 259.8 251.9 -5 0 256.2 256.0 261.8 264.6 263.9 263.5 271.8 273.4 270.0 266.5 256.0 248.0 0 5 254.7 254.5 264.0 268.2 271.9 274.2 279.3 278.4 279.5 273.2 256.1 248.7 5 10 247.6 248.1 260.0 267.8 275.3 277.5 279.7 279.0 282.5 273.2 257.4 249.8 10 15 238.5 239.8 252.6 263.8 274.4 274.1 274.3 275.3 276.3 266.5 256.8 249.0 15 20 233.2 235.3 247.5 261.3 274.9 271.7 270.6 271.4 268.1 260.8 254.9 248.9 20 25 235.9 239.2 249.7 267.0 282.2 276.6 274.0 272.4 267.1 261.9 255.9 254.2 25 30 249.0 254.2 262.3 283.4 296.6 288.1 283.6 279.5 274.9 268.1 263.6 266.2 30 35 273.4 281.2 286.1 305.4 314.2 302.4 294.1 289.4 285.1 274.3 277.8 283.2 35 40 307.7 317.9 318.5 326.0 331.2 317.8 303.3 298.5 291.0 279.4 293.7 303.9 40 45 345.5 358.6 353.6 343.6 347.3 334.9 313.6 305.1 293.3 287.2 306.2 327.2 45 50 375.2 394.4 383.3 362.6 364.0 352.1 326.5 310.2 298.0 299.4 316.4 347.9 50 55 389.0 417.1 402.9 386.1 379.8 363.1 337.3 313.9 306.5 310.4 326.9 356.0 55 60 391.6 425.8 414.6 412.1 391.0 363.3 340.1 314.9 311.9 312.1 332.5 344.7 60 65 395.2 428.3 425.5 435.6 395.6 356.4 335.4 313.2 307.6 304.6 322.7 318.9 65 70 405.9 434.5 441.7 453.0 395.0 349.9 330.0 310.0 296.4 296.1 296.0 292.5 70 75 417.6 446.4 460.8 461.8 393.4 347.4 326.3 304.9 285.1 291.6 266.3 277.8 75 80 419.7 457.1 475.1 459.6 393.5 345.9 319.6 294.1 275.1 287.3 251.1 277.3 80 85 410.6 460.8 480.1 448.9 395.3 342.2 307.4 277.9 264.8 278.8 254.7 284.5 85 90 400.6 459.7 479.4 438.9 396.8 338.2 296.5 265.0 257.1 270.7 264.4 290.9 1986 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 268.0 256.8 244.3 232.5 297.4 264.5 253.8 258.0 234.0 263.5 285.7 299.7 -85 -80 268.6 259.9 245.4 231.1 305.1 267.8 258.1 244.8 223.0 254.2 282.9 298.2 -80 -75 272.3 266.8 251.9 235.5 314.9 274.3 264.9 238.7 217.1 251.8 281.9 300.5 -75 -70 280.5 276.8 265.8 251.3 319.7 283.3 273.9 258.2 233.4 271.4 289.8 309.4 -70 -65 289.5 285.5 281.6 275.2 315.9 294.3 285.1 299.4 274.8 310.3 310.2 320.1 -65 -60 292.7 287.8 289.5 295.8 306.0 306.2 297.8 338.3 324.4 346.9 336.6 325.2 -60 -55 288.1 283.6 285.0 302.7 296.0 316.4 309.7 353.4 357.4 361.6 353.9 322.3 -55 -50 281.1 278.5 274.1 295.4 290.0 321.3 317.5 348.3 364.8 357.2 351.3 315.0 -50 -45 277.7 276.5 266.1 281.7 286.8 317.7 319.2 341.5 356.5 349.4 333.4 307.7 -45 -40 277.5 274.9 263.8 269.2 283.0 306.2 314.6 338.8 342.8 344.7 312.5 300.4 -40 -35 275.7 270.0 264.1 260.6 276.9 291.1 304.6 330.3 326.6 336.6 297.3 292.0 -35 -30 270.1 263.0 263.4 255.4 269.0 277.4 291.4 310.3 309.6 320.8 289.8 283.6 -30 -25 263.0 258.1 261.0 252.8 260.7 266.6 277.8 286.9 295.9 302.8 287.3 277.7 -25 -20 258.1 256.9 258.4 252.1 253.6 258.2 266.0 270.2 286.6 288.9 284.8 273.9 -20 -15 255.8 256.5 255.5 252.0 248.9 251.7 257.2 261.7 277.8 278.7 277.9 268.9 -15 -10 254.1 255.1 252.3 251.0 247.6 248.0 252.4 257.5 268.3 269.8 266.0 261.3 -10 -5 251.9 253.8 249.6 249.5 250.2 249.1 252.6 256.4 262.2 262.9 254.5 253.3 -5 0 249.3 253.4 247.9 249.8 255.7 254.7 257.4 259.6 263.0 260.4 248.6 249.0 0 5 245.9 251.9 247.2 254.6 261.5 262.1 263.9 265.2 267.2 260.8 249.0 248.8 5 10 241.5 248.4 247.8 263.7 265.8 268.1 268.5 268.2 268.4 260.7 251.9 249.8 10 15 238.2 246.5 251.1 273.8 269.4 272.4 270.1 266.7 265.5 259.8 252.7 250.2 15 20 239.7 250.7 259.0 282.0 275.2 276.7 270.7 265.0 263.9 260.9 251.0 251.3 20 25 249.6 263.2 273.2 289.4 286.3 282.8 273.6 268.7 267.5 266.0 251.2 255.6 25 30 268.8 283.4 294.3 301.0 302.1 291.4 281.2 278.0 275.9 273.7 258.3 264.6 30 35 295.0 310.4 320.8 320.0 319.7 302.7 292.6 288.4 284.5 281.1 273.0 278.7 35 40 324.5 342.3 348.2 344.3 336.1 316.9 304.7 295.9 289.8 286.5 289.8 297.8 40 45 352.9 374.8 371.0 368.3 350.5 333.3 315.7 302.1 293.2 291.6 302.0 319.9 45 50 375.2 400.4 385.5 387.0 363.6 347.9 325.7 309.6 298.3 298.8 310.2 339.1 50 55 386.2 410.0 391.9 400.0 375.7 355.0 333.1 316.3 305.1 306.5 320.8 348.2 55 60 382.4 402.8 393.4 409.7 385.9 353.3 334.3 317.0 309.0 307.8 333.2 345.8 60 65 365.5 389.7 395.8 419.4 392.8 347.0 327.4 311.6 307.0 298.1 336.5 337.9 65 70 344.2 383.7 405.9 430.8 396.0 342.7 316.8 305.9 301.4 281.7 323.7 332.4 70 75 330.7 389.0 426.3 442.3 395.0 343.5 309.4 302.6 295.1 268.2 302.7 331.9 75 80 332.5 396.7 452.7 450.1 390.1 346.1 308.0 298.0 285.2 262.3 289.4 333.8 80 85 345.9 398.2 476.7 452.0 383.6 347.0 310.0 288.5 270.5 261.8 290.7 335.3 85 90 358.4 395.5 490.9 450.8 378.9 346.3 311.7 279.7 258.4 262.5 297.5 335.6 1987 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 284.6 269.7 269.7 277.5 244.8 257.4 264.8 252.4 206.5 183.0 228.0 284.7 -85 -80 286.5 274.0 271.3 276.1 243.6 265.7 267.4 249.5 197.6 171.6 216.4 287.2 -80 -75 291.1 279.9 277.5 279.6 245.5 276.7 272.8 248.7 191.9 165.6 210.5 290.5 -75 -70 298.8 285.6 289.4 291.7 254.6 285.0 280.5 255.5 203.5 183.0 226.9 295.0 -70 -65 308.0 291.3 302.2 307.3 271.0 291.2 288.7 271.2 237.2 228.3 264.3 303.0 -65 -60 314.1 296.6 307.5 314.7 289.5 299.5 294.1 289.5 281.6 286.4 304.5 314.3 -60 -55 313.1 299.4 301.5 307.9 302.9 309.4 296.1 303.2 316.9 331.2 328.6 322.7 -55 -50 305.7 297.4 289.1 293.2 307.0 313.9 297.9 310.9 332.5 349.4 333.9 320.3 -50 -45 296.1 290.6 278.6 280.8 302.2 306.3 301.9 315.8 334.2 348.9 330.8 307.3 -45 -40 287.2 281.4 273.2 275.1 292.4 289.6 305.9 318.5 331.5 342.1 326.9 292.9 -40 -35 279.5 272.8 270.1 273.6 281.7 273.7 303.8 314.8 325.7 332.9 321.1 285.8 -35 -30 272.7 266.8 266.9 271.6 271.9 265.3 293.2 302.3 313.4 320.6 310.8 285.5 -30 -25 267.9 263.0 263.3 266.9 263.6 262.0 278.1 285.2 296.2 306.3 297.5 283.8 -25 -20 265.2 259.2 259.9 259.9 256.2 257.6 264.3 269.5 278.9 291.6 283.2 275.3 -20 -15 262.5 253.5 256.7 253.0 250.0 250.0 255.9 259.0 266.1 277.5 269.5 263.1 -15 -10 257.7 247.1 253.0 248.1 245.7 244.1 253.4 255.4 261.2 267.3 260.1 254.7 -10 -5 250.9 243.0 249.9 247.1 245.0 245.7 256.8 259.4 265.8 265.7 259.1 254.1 -5 0 243.9 241.3 248.4 250.1 249.0 254.5 263.7 269.0 276.1 272.3 264.9 257.4 0 5 239.1 239.7 248.5 255.7 256.9 265.0 270.4 277.4 283.6 278.8 268.3 257.2 5 10 237.4 237.7 249.4 261.3 265.6 272.2 274.1 279.0 282.4 277.0 262.0 250.6 10 15 239.0 238.1 251.0 265.5 272.7 276.3 274.9 275.0 275.3 267.7 250.2 242.0 15 20 243.8 243.9 254.8 270.6 279.0 281.7 275.9 272.8 270.1 259.4 242.4 237.5 20 25 252.1 255.9 264.3 281.5 288.7 291.6 281.4 277.4 271.3 259.1 243.2 240.0 25 30 265.8 274.2 283.5 302.0 305.1 305.1 292.4 287.6 278.5 267.0 250.6 249.4 30 35 287.1 299.3 313.7 330.3 327.9 320.4 306.2 298.7 288.4 278.3 262.7 264.8 35 40 315.2 328.7 350.8 359.3 352.4 335.7 319.4 307.2 297.3 288.9 280.7 285.8 40 45 343.4 357.0 386.4 382.6 373.0 350.1 330.2 314.8 304.4 298.1 303.7 309.8 45 50 362.2 379.3 413.5 398.7 386.6 361.7 338.8 323.4 310.6 307.3 323.3 330.9 50 55 366.8 396.7 429.8 409.3 394.1 367.6 344.5 330.5 314.9 314.8 330.3 344.8 55 60 363.4 416.2 437.6 416.3 397.7 367.9 344.8 330.9 314.9 315.4 328.1 352.2 60 65 363.4 444.5 440.7 421.9 398.2 366.5 339.8 323.7 310.1 308.2 331.6 358.6 65 70 373.8 480.6 442.8 428.0 396.2 367.6 333.4 314.7 304.1 300.9 348.7 368.5 70 75 392.3 513.3 446.6 434.7 393.6 371.3 329.7 309.3 300.2 303.2 366.7 381.3 75 80 411.2 529.6 453.3 439.7 392.7 373.7 327.9 306.4 295.7 316.3 363.8 394.2 80 85 424.7 527.7 460.8 441.2 394.1 371.9 325.6 302.5 287.5 332.6 336.0 404.8 85 90 431.6 520.0 465.6 440.2 396.0 368.8 323.2 298.6 279.8 342.9 307.8 411.0 1988 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 267.2 270.0 281.6 255.0 257.6 269.9 303.4 256.1 249.8 282.9 374.1 324.9 -85 -80 272.6 269.0 281.1 254.4 261.6 275.5 297.8 259.1 238.4 268.2 355.2 322.4 -80 -75 279.6 269.6 280.6 257.1 268.7 284.7 292.4 267.0 235.9 259.0 336.1 321.0 -75 -70 285.8 275.7 282.2 266.6 277.0 294.4 293.0 283.1 261.8 275.4 333.6 324.1 -70 -65 292.9 287.8 287.7 281.0 283.8 300.9 300.1 306.9 314.0 318.3 345.5 330.9 -65 -60 301.8 300.6 294.8 292.4 287.3 302.7 308.2 331.3 364.2 365.5 355.0 335.7 -60 -55 307.9 305.7 297.4 292.9 286.5 301.4 312.1 348.3 382.4 389.7 350.0 332.5 -55 -50 304.9 300.5 291.4 282.7 283.0 299.4 312.0 355.6 370.7 385.3 335.8 321.2 -50 -45 293.5 290.3 280.3 270.5 279.3 297.0 310.2 355.2 354.5 368.4 325.2 307.5 -45 -40 281.6 282.7 271.2 265.0 277.5 293.1 307.2 347.4 347.6 353.0 321.2 296.7 -40 -35 276.6 279.7 267.6 266.1 277.0 287.5 301.9 332.0 342.1 338.7 316.8 290.4 -35 -30 278.0 278.1 267.0 267.2 274.6 281.5 295.1 312.7 328.2 321.4 307.6 286.5 -30 -25 279.1 274.6 265.0 263.0 268.8 275.4 287.7 295.2 309.1 303.3 296.0 282.1 -25 -20 274.6 267.5 259.8 255.1 260.8 268.9 279.0 281.8 292.6 288.8 285.0 275.8 -20 -15 265.4 259.1 254.1 249.5 254.1 261.6 268.1 270.0 279.9 277.6 274.1 267.9 -15 -10 257.3 253.5 251.3 249.4 251.3 255.5 257.2 258.8 268.5 268.1 262.5 259.2 -10 -5 254.8 253.3 252.0 252.9 252.8 254.3 252.3 252.3 259.6 261.3 254.6 251.7 -5 0 256.6 255.9 253.9 256.9 257.4 259.3 256.4 254.2 256.6 258.5 253.1 248.5 0 5 257.3 256.7 254.8 260.6 263.1 267.1 265.5 261.8 259.5 258.9 255.2 250.7 5 10 253.8 253.8 254.9 264.7 267.8 272.4 271.9 267.2 263.7 259.5 255.7 255.1 10 15 247.6 249.8 255.2 268.5 270.6 273.1 272.4 267.1 265.1 259.0 253.9 256.9 15 20 243.0 248.4 256.3 271.4 272.6 272.6 270.9 265.7 264.3 258.3 253.5 255.0 20 25 244.0 252.7 260.3 276.3 277.7 277.3 273.6 269.1 265.0 259.1 256.5 254.0 25 30 253.4 266.0 272.8 289.2 290.2 290.6 282.4 278.6 270.9 263.6 262.4 261.2 30 35 273.0 290.2 298.6 312.4 311.3 309.8 294.3 289.6 281.1 272.6 270.2 279.1 35 40 300.4 321.3 335.4 339.1 336.8 329.4 306.5 297.6 290.9 283.9 281.4 302.2 40 45 327.5 349.7 372.2 359.4 359.8 344.6 318.8 303.6 297.2 293.7 296.3 321.7 45 50 346.1 369.0 398.8 372.7 375.7 353.4 331.4 311.2 301.1 299.4 310.8 334.4 50 55 356.0 381.9 414.7 387.4 385.0 356.3 339.9 319.7 303.8 300.1 317.8 343.7 55 60 365.7 396.1 426.0 409.4 391.2 354.6 338.7 322.7 303.9 296.0 315.0 350.9 60 65 382.2 413.7 436.7 432.6 395.4 350.4 329.6 316.3 299.7 289.1 308.6 350.3 65 70 401.0 426.2 445.6 447.2 396.8 347.9 320.8 305.8 294.6 284.2 307.2 336.8 70 75 408.5 420.0 451.5 451.1 395.6 350.3 317.6 298.7 293.6 285.2 311.8 317.2 75 80 395.8 388.9 455.8 451.2 393.7 356.6 317.1 296.7 295.5 291.4 315.6 306.1 80 85 369.8 344.9 460.3 454.0 393.3 363.4 314.3 296.4 296.1 298.2 313.0 309.9 85 90 349.2 313.0 464.0 457.8 393.9 367.4 310.6 295.6 294.8 301.9 308.0 319.1 1989 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 288.2 267.1 257.9 261.8 249.7 269.8 277.1 252.5 189.3 220.9 301.7 293.6 -85 -80 286.7 272.2 256.2 263.5 258.3 277.7 283.0 255.9 185.8 200.6 283.1 294.8 -80 -75 286.4 278.8 260.2 267.9 272.7 289.0 290.9 259.2 187.1 183.8 264.0 298.5 -75 -70 290.2 285.2 276.2 275.1 288.7 297.8 296.9 262.5 203.4 194.6 263.6 304.7 -70 -65 297.6 292.1 299.0 283.6 302.8 302.7 300.0 271.1 236.5 237.8 285.9 311.8 -65 -60 303.7 298.5 314.7 289.5 312.1 306.3 302.0 288.7 275.2 295.8 317.9 318.0 -60 -55 304.2 300.3 313.3 289.2 314.1 311.6 305.9 312.5 304.1 341.1 340.5 321.9 -55 -50 300.0 295.7 298.7 282.9 309.0 316.5 312.5 333.4 319.9 360.8 345.0 321.3 -50 -45 294.8 288.2 284.2 274.5 300.2 315.6 318.6 343.4 330.5 362.2 337.0 314.6 -45 -40 290.9 282.6 277.1 269.0 292.2 307.6 319.7 341.2 339.9 355.0 324.7 302.8 -40 -35 287.2 279.1 275.2 268.6 286.9 296.4 314.0 331.3 342.2 341.7 312.3 290.6 -35 -30 282.8 274.6 272.5 270.9 281.9 287.2 303.7 318.3 332.2 324.6 300.9 283.3 -30 -25 278.3 267.7 266.6 271.5 274.2 281.0 292.3 304.3 314.4 308.8 291.5 280.9 -25 -20 274.2 261.1 259.8 267.6 264.6 274.5 280.8 289.1 297.5 295.7 282.9 278.4 -20 -15 269.5 257.0 254.9 261.0 257.1 265.7 269.4 273.5 284.5 282.3 272.8 271.4 -15 -10 263.3 255.4 253.2 255.6 254.2 257.2 259.9 261.3 274.3 268.4 262.0 261.9 -10 -5 256.9 254.4 254.0 254.7 255.3 253.8 255.7 257.2 267.6 260.3 255.2 255.9 -5 0 252.7 252.9 255.6 258.5 258.1 256.7 258.2 261.3 264.9 261.7 254.7 255.2 0 5 251.7 252.2 256.9 264.7 262.0 262.4 264.4 268.3 265.9 267.9 256.5 255.6 5 10 252.8 254.6 258.7 271.9 267.9 267.4 269.9 272.3 268.9 270.9 256.2 253.0 10 15 254.5 259.2 262.8 279.1 276.0 271.6 273.1 273.4 272.1 268.9 254.6 249.0 15 20 256.5 262.6 270.0 286.0 285.3 277.6 276.4 275.5 275.0 266.6 255.1 249.0 20 25 260.0 265.1 280.0 293.6 294.4 287.5 282.5 281.5 277.8 267.6 259.0 255.3 25 30 268.2 273.8 292.9 304.5 304.8 299.8 291.7 290.1 281.9 271.2 264.6 265.7 30 35 283.6 294.8 308.8 320.9 320.0 312.4 302.4 298.4 287.8 276.1 272.1 278.8 35 40 306.3 324.3 327.8 343.1 340.5 325.2 313.0 304.5 293.9 283.2 283.9 297.5 40 45 331.4 351.9 349.9 367.7 361.8 339.1 322.8 309.8 299.2 293.7 299.6 322.9 45 50 351.3 375.0 374.5 389.0 376.8 351.9 330.5 315.8 304.6 304.6 313.6 345.0 50 55 360.6 400.4 398.4 402.2 382.2 357.8 333.6 321.0 310.1 308.6 318.3 348.9 55 60 360.1 428.3 416.9 407.4 381.7 354.4 330.9 321.9 311.0 303.1 314.0 332.6 60 65 355.7 445.5 428.1 410.0 381.7 346.6 326.0 317.5 303.5 295.7 310.2 312.7 65 70 352.0 440.7 438.4 416.5 385.6 343.6 324.5 310.7 291.8 297.8 314.9 308.7 70 75 349.8 422.5 458.4 427.2 393.0 350.5 326.0 302.8 284.9 310.4 324.9 322.8 75 80 347.7 413.3 493.0 435.9 400.9 363.2 324.3 291.9 286.1 322.8 329.2 341.2 80 85 345.0 423.1 533.9 438.3 406.7 374.4 316.2 278.0 291.3 326.3 322.5 351.7 85 90 343.3 437.7 562.3 437.0 409.8 380.2 307.8 267.6 294.8 323.6 313.1 354.1 1990 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 273.8 266.4 246.3 281.3 262.0 277.9 238.4 288.9 229.3 161.7 235.3 234.4 -85 -80 279.6 268.6 252.8 275.9 268.7 271.0 246.4 275.1 207.8 169.7 236.2 241.6 -80 -75 285.6 273.9 262.3 269.2 277.6 266.7 258.4 256.9 187.7 186.6 239.2 253.2 -75 -70 288.5 281.7 271.3 265.6 285.5 273.4 271.3 247.7 194.1 215.7 248.7 267.3 -70 -65 290.4 288.6 278.8 267.3 293.2 289.7 285.1 257.2 235.4 257.6 269.3 284.6 -65 -60 294.5 290.1 284.7 272.5 302.9 305.3 299.5 283.0 295.0 302.4 298.2 303.3 -60 -55 298.6 286.4 287.5 277.1 311.3 311.1 311.0 311.6 340.6 332.7 322.5 316.6 -55 -50 297.9 282.3 285.6 278.7 311.4 307.3 315.1 328.7 353.9 340.0 330.0 317.2 -50 -45 291.5 280.5 279.9 277.6 300.9 299.4 311.4 330.2 345.2 332.5 321.9 305.9 -45 -40 283.2 278.8 274.2 276.2 286.5 291.8 303.8 321.6 332.8 323.4 309.1 291.6 -40 -35 277.3 274.9 270.8 275.2 275.7 284.2 295.3 308.9 322.1 316.8 299.0 282.7 -35 -30 273.7 270.2 269.0 272.6 269.0 274.2 284.6 293.9 308.6 309.0 292.1 279.9 -30 -25 269.7 267.0 265.7 266.7 261.9 261.6 270.3 277.8 290.9 296.5 285.3 277.3 -25 -20 264.7 264.1 259.8 259.2 253.6 249.8 255.1 263.6 274.1 281.2 277.0 271.3 -20 -15 260.3 258.8 254.2 254.3 248.6 243.5 245.9 255.0 263.3 268.3 268.4 263.4 -15 -10 258.1 253.5 253.8 255.2 251.6 246.3 248.1 255.5 261.3 262.5 262.9 257.6 -10 -5 257.6 253.2 260.0 261.5 261.6 257.7 260.9 264.6 268.1 265.5 262.8 255.8 -5 0 256.6 257.4 268.2 269.4 272.5 271.8 276.6 276.6 279.0 273.2 266.4 257.0 0 5 253.3 259.5 271.5 274.9 279.0 280.7 286.0 284.0 286.3 277.8 268.8 258.7 5 10 248.1 255.2 267.9 276.7 280.4 281.0 286.0 283.4 285.9 275.7 267.0 258.6 10 15 243.5 249.3 262.0 275.6 279.8 276.5 281.3 278.9 280.1 270.6 262.8 256.0 15 20 242.7 250.0 260.5 274.5 281.0 275.2 278.8 276.8 274.5 267.6 259.7 253.1 20 25 248.9 260.0 267.6 279.2 286.7 281.1 281.9 279.3 273.3 268.8 259.8 253.9 25 30 263.6 276.1 283.6 294.0 298.4 291.9 289.7 284.9 277.8 272.8 263.8 262.5 30 35 285.0 294.2 305.1 317.8 315.7 303.7 298.9 291.5 285.9 278.3 272.3 280.0 35 40 308.7 314.0 327.3 343.4 335.0 315.6 307.4 298.8 293.8 284.1 283.4 301.6 40 45 330.3 337.2 346.9 362.4 350.8 328.8 315.2 307.5 299.5 289.6 294.4 319.3 45 50 350.6 360.6 364.6 373.0 359.4 341.7 323.7 315.6 304.6 295.3 304.4 329.0 50 55 369.0 376.0 381.9 380.0 361.9 348.6 331.0 319.0 309.6 301.5 314.4 332.6 55 60 376.3 383.0 396.7 386.6 363.6 348.2 333.1 315.6 310.5 305.6 322.3 332.4 60 65 361.4 393.7 403.6 391.1 368.0 345.7 327.7 308.2 303.5 304.5 323.1 326.4 65 70 328.4 417.7 399.3 391.0 374.1 347.2 319.2 302.6 292.4 299.7 315.1 313.3 70 75 301.9 445.4 386.1 386.1 379.2 351.0 314.4 300.4 285.7 297.2 304.1 301.4 75 80 308.1 454.4 370.8 379.5 382.9 348.8 315.8 296.5 286.0 300.5 298.9 302.9 80 85 346.1 437.3 359.4 374.3 385.7 338.0 320.3 287.8 289.4 307.0 301.9 319.5 85 90 382.6 415.8 353.7 371.7 387.3 327.1 323.5 279.6 291.4 311.7 307.0 336.3 1991 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 274.1 267.1 242.4 255.8 265.4 223.3 214.5 224.9 204.9 161.4 358.3 300.7 -85 -80 276.2 265.5 254.6 254.6 249.8 239.8 237.9 220.9 190.1 173.3 320.6 296.9 -80 -75 280.2 264.4 269.6 255.7 233.3 262.4 268.7 218.6 178.9 194.2 279.6 296.7 -75 -70 286.4 268.2 279.5 263.2 233.2 279.2 288.9 226.1 192.0 223.6 271.3 305.4 -70 -65 295.4 280.6 285.0 277.6 255.6 286.5 292.6 248.3 237.2 261.2 302.4 319.5 -65 -60 304.4 297.3 290.1 293.5 289.3 289.2 288.8 281.7 300.3 300.6 347.7 330.5 -60 -55 307.3 306.8 293.3 301.3 314.2 293.7 290.0 315.7 351.6 331.4 372.4 332.4 -55 -50 300.7 301.4 289.0 295.7 317.6 299.9 300.6 339.5 371.7 346.4 365.6 325.6 -50 -45 288.1 285.1 278.1 281.0 303.3 302.9 313.2 347.7 367.3 347.9 343.7 314.0 -45 -40 276.7 268.9 268.1 267.1 285.0 299.7 317.6 341.6 354.0 342.3 325.2 301.2 -40 -35 269.8 260.3 264.7 261.0 272.7 292.0 310.8 326.1 339.3 332.6 314.2 290.6 -35 -30 266.2 258.2 265.4 261.2 266.9 282.8 298.5 308.0 323.1 319.6 305.3 284.6 -30 -25 262.5 257.9 263.4 261.5 262.6 272.7 286.0 292.0 306.0 304.6 295.0 282.6 -25 -20 257.1 255.8 256.8 258.2 257.0 261.6 274.6 278.3 289.1 288.8 282.5 279.6 -20 -15 251.0 252.6 251.0 253.5 251.7 251.7 263.9 264.8 272.8 272.7 268.6 271.2 -15 -10 246.8 251.5 251.5 251.8 249.7 247.3 255.8 253.5 259.2 258.9 255.7 259.0 -10 -5 246.4 253.7 257.7 255.0 252.3 251.4 254.7 250.6 253.5 252.7 248.1 248.9 -5 0 248.5 256.7 264.1 260.8 258.7 261.9 262.2 258.8 258.1 255.2 247.8 244.5 0 5 250.3 257.0 266.5 266.3 266.6 272.9 273.3 272.4 268.5 261.5 251.6 242.9 5 10 249.7 254.7 266.6 270.7 274.0 279.4 280.6 280.9 276.2 265.5 254.8 239.9 10 15 247.8 252.6 267.6 274.9 279.7 281.2 281.6 280.2 276.5 265.7 255.6 236.7 15 20 248.1 252.6 270.3 280.4 284.8 282.7 280.6 276.2 272.4 264.4 255.2 238.4 20 25 255.1 257.1 276.6 289.0 292.9 288.6 283.8 277.5 270.8 265.2 255.8 247.7 25 30 271.1 271.4 291.4 303.0 306.9 300.6 293.5 286.4 276.7 269.7 259.3 261.5 30 35 295.6 300.2 318.3 323.9 327.1 316.5 306.7 297.8 287.8 277.9 268.5 275.5 35 40 324.9 340.3 351.2 349.6 350.2 333.3 318.4 305.7 297.2 286.9 283.2 290.3 40 45 352.7 377.6 377.8 374.6 370.3 348.1 327.3 309.9 301.0 293.4 298.2 307.9 45 50 373.9 398.5 393.7 394.0 383.4 358.8 334.5 314.4 303.4 296.9 306.2 324.6 50 55 384.5 402.9 406.7 405.6 389.8 364.5 339.9 319.9 309.2 298.7 305.7 331.3 55 60 382.0 401.0 422.9 410.5 392.4 364.8 340.6 322.2 314.7 298.8 304.5 325.0 60 65 367.3 400.4 434.3 412.8 394.0 360.9 335.9 318.1 311.9 297.1 312.3 314.3 65 70 348.8 398.8 426.8 417.2 395.4 356.5 330.1 311.1 300.0 294.5 328.4 311.0 70 75 343.6 388.1 398.2 425.9 395.6 356.0 327.4 306.3 287.3 294.4 339.2 316.9 75 80 363.6 365.1 363.6 437.0 394.7 360.5 327.3 303.9 281.3 297.7 331.0 323.3 80 85 401.9 336.8 339.1 446.2 393.9 367.3 326.6 301.3 281.3 302.2 305.2 323.6 85 90 432.9 317.0 328.9 451.0 393.5 372.1 325.1 298.8 282.7 304.7 281.6 320.5 1992 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 276.8 275.9 271.6 262.3 302.7 286.1 265.8 201.4 178.2 228.5 245.9 282.6 -85 -80 272.5 279.7 276.1 260.9 298.8 291.0 276.7 206.5 169.3 198.9 228.5 283.6 -80 -75 271.3 285.2 282.4 265.9 293.4 296.4 292.2 215.2 161.8 169.8 219.7 284.4 -75 -70 279.9 291.3 289.2 282.1 290.5 298.2 305.3 229.5 170.2 174.0 241.5 285.2 -70 -65 296.9 298.7 297.6 303.1 293.5 296.6 311.8 255.0 204.3 222.2 287.5 288.6 -65 -60 312.7 305.4 306.3 314.7 303.0 296.5 311.9 292.5 260.0 292.9 327.6 296.0 -60 -55 318.6 306.7 309.7 309.0 313.7 301.3 309.2 331.7 316.0 345.1 337.5 303.0 -55 -50 314.0 300.3 302.9 292.2 318.4 307.9 307.8 355.8 349.4 357.2 324.3 303.8 -50 -45 304.3 289.5 288.5 276.8 313.3 309.8 308.4 355.7 356.3 344.8 311.7 297.7 -45 -40 293.9 279.8 275.9 269.7 301.2 303.2 307.5 336.2 347.7 332.2 309.6 290.3 -40 -35 285.0 274.1 270.4 268.1 287.9 290.7 301.3 310.3 333.0 324.7 309.5 286.3 -35 -30 278.1 270.5 269.8 265.6 275.5 277.2 288.9 289.1 314.3 313.0 301.4 283.9 -30 -25 273.0 266.8 267.7 259.8 263.5 264.8 272.8 274.0 292.3 292.8 286.1 278.3 -25 -20 267.8 262.0 261.3 252.2 251.2 253.0 256.8 261.5 270.1 270.9 270.5 268.3 -20 -15 260.7 256.9 254.2 246.3 241.3 242.8 244.5 250.1 253.2 256.0 259.2 258.5 -15 -10 253.6 253.4 251.4 244.6 237.7 237.3 239.3 243.5 247.7 252.5 254.2 254.2 -10 -5 249.6 252.0 252.8 247.1 241.4 239.2 242.9 246.9 255.4 257.6 256.2 256.1 -5 0 248.2 250.5 253.8 250.9 249.1 247.3 253.1 259.1 269.2 264.3 262.2 259.9 0 5 244.8 247.2 251.3 254.0 256.3 256.7 264.0 271.0 278.1 265.7 264.9 260.7 5 10 237.1 243.7 247.7 256.0 261.6 263.5 269.7 274.3 276.5 261.7 259.7 256.7 10 15 230.2 243.9 247.7 259.2 267.4 268.5 270.1 270.4 269.1 256.5 250.6 250.0 15 20 232.5 249.6 253.5 266.8 276.9 275.0 270.3 267.8 264.4 254.1 245.8 243.9 20 25 246.7 260.9 265.7 280.3 290.6 285.3 275.3 271.8 265.6 255.1 247.5 241.8 25 30 268.0 278.7 284.7 298.6 305.7 298.3 285.8 280.8 270.7 259.5 251.6 246.4 30 35 290.3 303.2 310.4 318.6 320.0 312.1 297.9 289.1 276.9 268.1 256.1 259.4 35 40 311.7 330.2 338.1 338.1 333.9 325.4 308.0 294.5 282.9 279.6 264.2 278.3 40 45 331.8 351.6 359.2 356.1 347.8 337.2 315.5 299.7 289.0 291.1 279.5 296.0 45 50 345.8 364.0 369.3 371.5 359.0 345.4 322.6 306.9 295.6 299.8 298.3 306.6 50 55 346.1 370.1 372.3 382.3 363.8 347.3 329.0 313.4 300.9 304.8 309.8 311.0 55 60 335.2 374.2 374.9 387.8 363.0 344.2 330.2 314.4 301.9 305.3 309.2 315.9 60 65 329.0 377.3 380.2 392.2 363.2 340.6 324.4 309.3 298.3 302.7 305.7 325.3 65 70 339.9 378.9 387.4 400.8 369.1 340.1 315.8 302.2 294.8 300.4 311.0 337.3 70 75 360.7 381.4 397.1 411.6 377.0 340.5 310.0 296.3 295.0 303.0 324.3 347.6 75 80 371.6 387.6 411.8 416.5 379.8 336.7 308.3 289.2 296.0 311.6 333.1 354.4 80 85 364.4 397.1 430.3 411.4 375.1 327.7 307.7 278.7 293.2 321.4 329.3 359.3 85 90 351.9 404.4 444.0 403.8 368.8 319.7 306.9 270.0 288.8 327.5 320.6 362.5 1993 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 259.0 261.7 237.6 288.9 277.9 287.4 308.8 265.7 169.4 154.0 242.7 298.7 -85 -80 269.5 268.1 254.6 284.8 285.6 294.2 309.5 253.0 162.3 141.0 221.6 290.2 -80 -75 283.3 277.1 277.5 281.9 295.2 304.2 311.5 238.8 164.1 133.7 201.9 282.0 -75 -70 293.7 285.5 293.9 284.8 300.5 312.1 314.2 237.7 189.1 152.8 208.2 282.6 -70 -65 300.0 291.6 299.1 292.9 300.9 314.3 314.6 255.7 235.2 206.1 247.5 292.0 -65 -60 304.2 293.5 295.5 300.4 300.0 312.5 310.1 285.6 280.1 277.1 301.3 302.1 -60 -55 305.2 289.5 286.8 301.3 299.6 312.1 302.3 312.3 301.8 332.0 337.9 304.9 -55 -50 300.3 281.7 276.3 294.4 297.9 315.0 297.2 325.6 304.6 351.5 342.6 300.3 -50 -45 291.0 275.2 268.2 283.1 292.5 316.1 297.9 326.6 309.3 346.8 329.1 294.2 -45 -40 282.6 272.5 266.1 272.9 284.5 308.6 299.8 320.4 322.3 336.6 316.7 290.5 -40 -35 277.9 271.5 268.3 266.3 276.6 292.5 295.4 309.6 329.1 326.6 310.3 288.1 -35 -30 274.6 268.3 268.5 262.1 269.1 275.4 283.3 294.9 317.5 313.3 303.1 282.2 -30 -25 268.9 261.7 262.1 257.4 260.2 263.8 269.5 279.6 293.9 296.3 290.5 271.9 -25 -20 261.0 254.9 252.0 251.3 250.8 257.6 260.2 267.7 273.8 281.0 276.1 260.9 -20 -15 255.0 251.9 246.6 246.6 245.0 252.9 256.5 260.6 264.6 271.3 265.5 253.6 -15 -10 254.7 254.8 250.7 246.9 246.1 248.6 255.6 257.7 263.4 266.9 260.0 250.7 -10 -5 258.5 260.9 260.0 253.3 252.5 247.0 255.5 257.9 265.0 265.0 256.5 248.8 -5 0 260.9 264.1 265.0 260.9 259.2 250.1 255.4 259.7 265.4 262.6 252.1 244.8 0 5 258.1 260.4 261.2 263.9 262.1 255.9 255.5 260.8 263.0 258.8 246.2 238.9 5 10 251.2 252.4 253.0 261.4 262.1 260.0 256.3 260.0 259.8 255.7 242.3 234.3 10 15 244.4 245.9 247.6 257.7 262.8 261.4 258.6 259.4 259.2 256.2 243.3 233.9 15 20 240.8 244.2 248.2 259.7 267.4 263.8 263.7 262.0 262.5 260.3 248.1 238.4 20 25 241.4 248.4 255.0 270.6 276.3 271.0 271.9 269.0 267.5 265.0 253.0 246.3 25 30 247.4 259.4 268.8 287.5 287.9 282.6 281.6 278.5 272.3 269.0 257.6 257.5 30 35 260.6 278.1 290.3 305.5 301.4 295.2 290.6 287.3 276.9 273.7 265.4 273.7 35 40 281.3 301.1 315.1 321.2 316.5 307.1 298.2 293.8 282.3 280.0 278.7 294.8 40 45 304.6 322.6 335.1 334.6 331.5 318.8 305.7 298.6 289.6 286.9 294.9 315.8 45 50 323.1 338.1 346.5 346.0 343.7 330.4 314.7 303.1 297.4 292.8 309.7 328.1 50 55 333.4 347.3 353.5 353.7 351.2 338.0 322.7 306.3 301.7 296.5 319.6 327.8 55 60 338.5 351.7 361.8 356.6 354.5 339.0 324.4 305.9 298.6 296.9 323.2 321.4 60 65 342.9 350.8 369.0 358.7 356.1 335.4 317.7 300.9 290.2 294.1 319.5 319.1 65 70 348.1 345.1 369.2 366.4 357.5 332.0 306.3 293.7 282.5 290.3 311.1 325.6 70 75 352.3 338.6 362.9 380.1 358.6 330.0 294.9 286.6 278.0 289.9 304.6 337.4 75 80 355.3 336.3 357.6 391.9 358.6 325.5 284.1 278.5 271.9 294.8 306.6 347.8 80 85 357.7 339.3 359.0 395.7 357.6 316.9 273.4 268.5 260.6 301.9 316.3 353.5 85 90 359.4 343.2 363.4 393.9 356.6 309.1 266.0 260.8 250.3 306.5 325.4 355.6 1994 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 265.4 261.6 267.4 288.5 384.4 250.7 231.7 260.8 198.0 193.8 331.8 325.8 -85 -80 270.0 260.6 264.3 289.5 360.0 257.4 240.6 243.6 183.2 175.1 307.4 324.5 -80 -75 276.5 261.3 263.2 291.2 324.7 267.9 254.9 225.3 170.2 160.4 278.6 322.3 -75 -70 283.4 267.1 268.9 294.2 296.8 278.5 270.6 226.0 178.6 173.7 267.4 321.3 -70 -65 290.7 277.0 279.1 299.6 287.7 286.4 286.0 254.8 217.3 221.2 280.5 324.0 -65 -60 297.2 284.3 286.2 304.8 294.8 291.7 300.2 301.7 275.7 284.3 306.5 329.9 -60 -55 299.2 283.6 284.5 304.1 305.3 296.4 311.5 342.0 328.2 331.0 327.3 332.4 -55 -50 295.4 277.9 277.0 293.9 307.0 302.1 318.6 357.4 354.9 346.5 333.5 325.1 -50 -45 289.1 274.7 271.7 279.2 298.5 307.9 320.9 350.3 357.2 343.3 329.8 309.3 -45 -40 284.8 276.3 271.7 268.6 286.9 309.3 318.1 334.6 347.0 337.4 323.0 293.3 -40 -35 281.3 277.8 273.0 265.4 277.5 302.7 309.1 318.2 331.0 330.2 314.0 283.9 -35 -30 274.7 273.9 270.1 264.4 269.3 288.5 294.2 300.7 311.1 316.3 301.6 279.6 -30 -25 264.4 265.3 262.3 259.2 259.9 271.0 276.4 282.0 290.9 297.0 287.4 273.9 -25 -20 255.1 256.9 254.2 251.2 250.8 256.6 260.6 265.8 274.9 279.6 275.1 264.7 -20 -15 250.8 251.6 250.1 246.4 245.4 248.7 250.7 256.1 264.7 269.4 266.7 256.3 -15 -10 250.1 248.6 249.8 248.0 245.2 246.7 247.8 253.6 260.3 267.1 262.9 254.1 -10 -5 247.6 246.0 250.3 251.5 247.3 247.7 250.3 255.8 261.3 269.7 263.4 257.4 -5 0 240.8 242.9 248.6 251.3 248.8 249.2 254.4 258.9 264.9 271.6 264.7 260.2 0 5 233.6 240.4 245.2 248.2 249.9 251.0 256.8 260.4 266.5 268.4 261.4 257.2 5 10 231.5 240.8 244.3 249.0 253.8 254.7 258.5 261.0 264.2 260.9 252.8 248.9 10 15 235.9 244.5 249.5 257.7 262.2 261.6 262.5 263.6 261.5 255.2 244.9 240.4 15 20 243.6 250.1 260.7 271.2 274.0 270.7 270.5 269.1 263.2 255.8 243.3 236.4 20 25 253.0 258.0 276.1 284.6 286.9 280.5 280.4 275.5 269.9 261.1 247.2 238.2 25 30 267.5 273.2 294.9 298.0 300.1 291.3 289.2 281.5 279.2 267.1 252.4 245.9 30 35 290.4 300.5 316.6 315.0 315.0 304.0 296.2 287.2 288.4 272.5 258.4 260.4 35 40 319.0 336.4 339.0 336.2 332.6 318.4 302.8 293.9 295.0 278.9 269.1 281.7 40 45 344.7 369.7 358.7 356.5 350.5 332.1 311.5 302.8 299.3 286.9 286.5 305.4 45 50 362.0 392.1 374.2 371.9 365.7 342.7 322.0 313.0 303.7 294.5 304.5 323.1 50 55 373.1 404.8 386.8 384.3 376.7 350.1 330.0 321.0 307.7 298.0 313.4 329.8 55 60 380.3 412.1 396.4 397.7 383.1 354.9 330.7 321.9 308.3 295.5 311.7 328.9 60 65 379.5 412.8 401.0 412.0 385.1 356.5 324.9 313.3 304.2 290.5 309.1 328.0 65 70 369.1 402.1 400.0 424.1 383.2 354.0 318.2 299.1 299.9 288.4 315.8 330.8 70 75 360.3 379.6 397.9 432.2 380.2 346.9 314.0 285.7 301.1 289.9 330.2 335.4 75 80 369.7 352.6 400.3 438.3 379.6 336.0 311.0 275.6 306.3 290.7 341.3 339.0 80 85 398.4 330.7 407.7 444.5 382.6 324.9 306.4 268.4 310.2 287.2 342.3 340.9 85 90 425.1 319.1 414.6 449.0 386.2 317.8 302.1 264.1 310.8 282.4 338.2 341.6 1995 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 275.4 277.4 255.6 257.7 232.8 221.4 242.2 261.7 175.1 180.5 217.5 293.2 -85 -80 276.6 273.3 257.6 258.3 244.5 233.7 247.5 249.4 163.2 157.7 202.7 271.8 -80 -75 281.1 270.7 262.3 263.6 261.8 252.2 255.4 233.2 156.5 141.0 193.0 251.8 -75 -70 289.9 275.8 271.5 276.5 277.4 269.3 263.8 226.1 172.9 159.4 208.4 254.6 -70 -65 300.5 287.5 285.7 293.3 288.6 281.5 273.2 237.4 216.6 217.7 250.1 279.0 -65 -60 306.4 297.4 300.6 304.7 295.9 289.0 284.8 265.6 272.7 290.5 297.6 305.0 -60 -55 303.1 298.3 308.4 303.8 299.0 294.5 298.2 297.3 317.3 339.9 325.3 314.8 -55 -50 293.4 291.8 304.8 292.9 296.4 298.1 310.7 317.5 339.1 353.4 327.8 308.6 -50 -45 284.8 284.0 293.1 281.1 288.2 298.3 318.7 322.6 344.7 348.3 319.5 298.2 -45 -40 281.6 277.5 281.2 274.7 278.5 293.6 318.7 318.3 342.4 341.6 313.4 290.9 -40 -35 280.9 271.4 273.6 272.8 270.8 284.4 309.1 309.4 331.0 332.8 308.5 285.8 -35 -30 277.2 265.0 268.8 269.8 264.5 272.6 292.4 296.2 310.0 316.8 299.0 280.2 -30 -25 268.9 259.7 263.2 262.3 257.4 260.8 274.0 280.5 287.8 297.4 285.4 273.5 -25 -20 259.0 256.1 255.8 252.8 249.7 252.3 259.9 266.9 273.1 282.3 273.0 266.6 -20 -15 251.8 253.1 250.2 247.0 245.4 249.4 253.0 259.8 267.2 273.7 265.2 260.0 -15 -10 249.7 251.1 250.4 248.1 247.3 252.0 252.7 259.3 265.8 269.2 260.8 254.1 -10 -5 251.5 251.8 255.8 254.0 253.3 257.5 256.3 261.9 266.1 266.7 257.6 250.5 -5 0 252.8 254.4 260.8 258.8 258.6 262.1 260.2 263.4 266.3 265.2 254.8 249.1 0 5 250.0 254.7 259.7 259.0 260.7 263.6 262.2 262.0 265.1 262.7 251.7 247.7 5 10 242.7 250.0 253.5 256.0 261.2 263.2 262.9 259.8 262.6 259.2 248.6 244.4 10 15 234.9 243.0 248.8 254.1 263.6 263.7 264.2 260.5 261.0 257.4 247.3 241.3 15 20 231.6 239.8 250.6 257.2 270.1 267.2 267.8 265.0 262.7 259.3 249.6 243.2 20 25 235.8 245.8 260.0 267.2 279.5 274.7 273.8 271.0 267.8 263.1 255.5 252.4 25 30 248.5 263.0 275.7 283.5 290.6 285.9 281.6 277.2 274.6 266.6 264.6 267.0 30 35 269.6 288.0 296.6 303.9 303.9 299.9 290.5 283.8 281.9 269.8 276.4 283.9 35 40 296.8 314.1 320.5 324.8 320.2 314.8 299.6 291.2 288.7 275.2 289.2 301.7 40 45 323.3 335.1 343.4 343.0 338.4 327.4 309.1 298.6 294.7 283.4 300.1 319.0 45 50 340.5 350.3 361.2 358.0 353.8 335.2 318.8 305.0 299.7 291.5 307.9 330.0 50 55 344.6 361.5 371.7 369.1 362.1 338.0 326.9 309.1 301.8 294.5 312.3 327.8 55 60 340.9 368.3 375.9 375.6 363.8 337.4 329.8 309.0 299.1 291.1 312.5 314.8 60 65 339.6 370.7 377.6 378.0 362.6 334.9 325.4 304.2 293.1 286.4 307.3 303.5 65 70 345.9 371.2 379.9 379.6 362.3 332.7 316.6 296.9 288.3 286.9 298.3 305.3 70 75 355.8 373.4 384.4 384.2 364.4 332.7 308.3 289.9 286.2 291.5 291.5 318.5 75 80 361.9 378.7 390.0 392.1 368.0 334.7 301.9 283.8 282.3 293.0 292.3 330.6 80 85 361.6 384.8 394.3 400.1 371.5 337.8 297.0 277.8 272.9 287.1 299.8 333.7 85 90 359.0 388.5 396.5 404.9 373.7 339.9 293.7 273.5 263.8 279.5 306.9 331.4 1996 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 264.3 249.9 248.3 235.5 237.9 219.2 231.0 209.9 199.8 205.3 243.9 284.7 -85 -80 263.5 253.8 247.3 234.0 236.5 231.1 240.7 207.1 177.7 174.4 222.8 278.6 -80 -75 264.6 259.1 250.3 237.2 239.6 247.5 251.6 203.5 159.7 149.4 202.1 272.7 -75 -70 270.5 265.3 261.8 249.4 251.9 261.1 257.5 205.6 172.6 166.0 205.2 274.1 -70 -65 281.0 274.4 278.4 267.4 269.9 271.9 262.3 222.9 222.4 228.4 239.1 285.2 -65 -60 291.0 285.7 290.6 282.5 285.6 284.6 274.1 259.1 289.4 304.5 287.9 301.3 -60 -55 294.7 293.8 291.0 288.0 293.7 300.4 295.3 304.2 340.8 351.3 324.9 313.5 -55 -50 291.1 293.4 281.9 285.3 294.7 313.4 317.7 339.4 361.3 358.3 336.7 316.0 -50 -45 284.5 285.9 272.3 279.9 291.1 315.9 330.2 351.4 362.2 348.2 331.7 309.0 -45 -40 279.3 277.1 267.8 274.8 284.0 307.5 328.8 342.1 356.1 339.7 323.7 297.8 -40 -35 275.4 271.0 266.8 270.6 274.3 294.1 317.2 322.5 343.2 330.8 316.4 287.7 -35 -30 270.4 266.9 264.6 266.3 264.6 281.5 301.2 302.5 321.7 315.4 306.7 280.5 -30 -25 263.2 262.5 259.2 261.8 257.5 270.4 284.3 286.4 298.6 298.0 294.6 275.0 -25 -20 256.0 256.9 252.6 257.1 253.3 259.6 268.7 273.7 282.3 286.2 282.9 269.9 -20 -15 251.4 251.8 248.4 252.8 250.4 250.4 256.7 263.3 273.3 279.8 273.8 264.8 -15 -10 249.7 249.7 248.3 250.3 248.3 245.8 250.4 256.7 267.2 274.5 267.2 260.8 -10 -5 249.5 250.2 250.8 250.1 248.6 247.1 250.6 255.8 262.3 268.9 263.0 258.8 -5 0 248.0 249.9 252.4 250.9 252.5 251.5 255.3 259.6 259.7 264.5 260.4 257.0 0 5 244.3 246.2 251.4 251.1 258.1 255.7 261.0 263.2 259.6 261.2 257.9 253.3 5 10 240.0 242.3 250.5 252.1 262.8 259.5 265.8 263.9 260.7 257.9 254.6 246.4 10 15 239.3 243.4 253.8 257.4 266.9 265.2 269.3 263.5 261.3 256.0 251.1 239.0 15 20 244.7 251.5 262.6 269.1 273.8 273.9 272.3 265.7 261.6 257.0 249.0 235.8 20 25 256.3 264.9 274.8 285.4 285.4 283.4 275.6 271.4 263.5 260.9 248.9 239.5 25 30 273.3 282.7 289.8 302.0 299.6 291.4 281.0 278.3 268.7 265.9 252.2 250.7 30 35 295.4 306.9 309.3 317.6 313.3 299.1 289.6 284.5 277.6 271.4 261.1 268.3 35 40 321.2 337.5 334.8 335.5 327.9 310.4 300.5 290.9 288.2 278.7 275.9 290.3 40 45 345.9 367.8 363.2 358.1 347.3 326.6 312.7 299.6 298.0 289.2 293.4 312.6 45 50 361.4 388.3 385.4 379.6 369.1 343.3 324.7 309.9 306.5 300.5 309.2 329.4 50 55 361.9 392.4 393.8 389.1 383.3 353.2 334.1 317.6 312.1 307.1 320.3 336.9 55 60 349.0 380.1 389.6 384.8 383.3 353.7 336.5 318.1 311.2 305.1 325.3 337.4 60 65 330.7 357.8 382.7 379.9 374.7 348.8 329.3 312.1 302.2 298.2 323.6 336.1 65 70 315.9 335.0 380.3 387.2 368.9 344.9 316.6 304.5 289.6 293.3 317.0 336.8 70 75 310.0 321.3 380.2 401.8 370.0 343.3 306.3 297.5 279.2 292.3 309.6 338.5 75 80 312.6 320.6 374.4 405.0 372.2 341.1 303.0 288.2 271.8 289.6 304.8 338.5 80 85 319.3 328.7 360.8 388.9 369.5 336.7 305.1 275.3 264.7 281.1 303.6 336.6 85 90 324.7 336.2 348.2 370.0 365.1 332.5 307.8 265.0 259.2 272.6 304.1 334.7 1997 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 277.4 261.7 254.1 248.0 256.5 246.3 287.1 227.5 167.1 185.0 216.5 291.3 -85 -80 277.2 267.4 252.9 244.2 267.7 256.9 295.8 225.9 164.9 166.4 220.3 286.7 -80 -75 278.1 274.6 255.5 245.6 281.3 270.2 302.5 227.1 169.6 151.4 228.5 282.5 -75 -70 282.0 280.7 265.3 259.3 288.5 278.6 300.0 238.2 192.6 164.5 243.6 283.9 -70 -65 290.3 285.9 279.1 281.5 288.7 281.7 293.2 261.8 237.0 213.4 267.3 291.1 -65 -60 299.8 290.4 288.5 299.4 288.0 285.0 293.0 291.0 288.8 279.4 294.7 299.2 -60 -55 304.4 292.4 288.6 302.1 290.3 291.5 301.1 313.4 324.6 327.4 314.7 303.2 -55 -50 300.5 290.1 282.7 291.1 291.5 297.2 307.7 321.4 334.3 340.0 320.1 302.4 -50 -45 289.5 284.0 276.3 276.4 285.8 296.5 303.6 317.6 329.0 330.8 314.4 298.6 -45 -40 277.3 276.2 272.0 266.5 273.3 289.0 291.2 308.1 322.4 320.1 305.8 293.3 -40 -35 268.8 269.0 268.5 262.4 261.1 278.5 279.1 296.2 315.2 313.0 297.7 286.8 -35 -30 265.2 263.3 264.6 260.7 254.4 267.7 270.3 282.5 301.8 303.5 289.3 278.9 -30 -25 263.4 259.3 261.4 258.3 252.3 256.7 261.7 268.6 283.8 289.5 280.8 271.4 -25 -20 259.9 256.2 259.3 254.6 251.1 246.6 252.0 257.2 269.4 276.4 274.2 266.2 -20 -15 254.5 254.3 258.0 252.1 249.8 241.7 246.1 251.1 263.6 269.4 270.8 263.0 -15 -10 251.0 254.3 258.3 253.5 250.8 245.4 248.8 252.1 265.4 269.3 269.2 259.9 -10 -5 252.5 256.2 261.2 258.4 256.0 256.4 259.0 259.3 271.1 273.0 267.3 255.9 -5 0 256.8 257.1 265.0 263.8 263.3 268.0 269.0 268.6 275.7 275.7 263.4 252.2 0 5 257.5 253.4 265.6 266.4 268.9 274.1 272.1 274.0 276.2 274.0 257.3 250.1 5 10 251.6 246.3 261.1 266.0 271.0 274.4 269.8 273.2 273.6 269.4 251.6 249.5 10 15 243.0 240.8 255.2 266.0 271.4 273.5 268.5 269.6 271.0 266.2 249.9 249.3 15 20 238.4 240.8 253.7 270.3 274.0 275.9 272.0 268.9 270.1 266.3 252.8 249.6 20 25 241.8 247.8 260.4 279.7 280.8 282.5 278.9 272.4 270.3 268.7 258.8 252.9 25 30 253.7 262.6 275.0 293.0 290.6 291.7 286.3 277.4 272.3 272.2 266.6 263.3 30 35 274.8 286.2 295.4 309.3 302.5 302.9 294.4 282.9 277.5 277.8 277.1 282.6 35 40 305.9 316.9 319.5 328.8 317.9 316.9 304.7 290.5 284.8 285.3 289.9 306.5 40 45 341.1 349.3 346.3 350.9 337.2 332.6 316.5 301.8 292.5 292.8 302.1 325.8 45 50 366.1 376.8 372.1 370.2 356.8 346.1 327.0 314.2 299.9 298.8 310.7 333.9 50 55 370.0 394.0 389.5 378.8 371.2 353.6 333.2 320.5 306.3 302.9 315.0 333.6 55 60 359.5 398.1 394.1 375.9 377.4 354.6 334.1 316.4 308.5 304.5 315.3 333.7 60 65 354.0 389.9 387.6 370.1 378.9 352.9 330.9 307.4 303.3 302.5 310.7 339.9 65 70 362.1 372.4 373.5 370.3 381.8 352.0 326.0 302.9 294.4 298.0 302.5 350.3 70 75 371.0 350.8 350.2 373.2 387.8 352.1 319.9 305.5 290.3 294.4 296.3 360.4 75 80 360.7 330.4 314.2 366.3 393.5 351.1 310.6 308.2 294.6 293.6 297.7 367.9 80 85 329.8 315.2 270.8 346.5 396.0 348.2 298.9 304.9 302.4 294.2 306.4 373.0 85 90 301.5 307.3 239.6 328.3 396.2 345.2 290.2 299.3 307.5 294.6 314.7 376.3 1998 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 264.0 258.3 267.3 289.7 244.9 254.9 268.1 259.7 151.5 184.1 212.1 244.4 -85 -80 264.3 263.1 268.3 280.0 254.7 279.6 261.7 255.3 153.4 157.1 194.6 245.5 -80 -75 266.1 267.7 269.8 270.6 265.7 303.1 259.3 245.0 156.5 139.3 183.6 249.5 -75 -70 271.7 269.3 272.1 270.7 271.0 302.2 271.4 234.6 166.2 164.8 202.6 258.2 -70 -65 282.0 271.4 276.6 279.9 273.2 281.8 297.3 236.9 192.4 235.9 252.7 270.5 -65 -60 293.2 276.9 282.4 289.3 279.3 269.2 323.7 261.2 238.9 316.6 308.4 282.8 -60 -55 299.1 283.4 286.0 291.1 289.8 282.3 336.4 299.9 292.8 360.4 338.1 291.0 -55 -50 296.5 285.3 284.3 285.5 297.0 308.9 334.2 332.2 332.3 358.6 335.3 294.0 -50 -45 288.9 281.3 278.4 278.3 294.4 323.1 326.9 344.1 348.1 341.2 319.9 293.0 -45 -40 281.4 275.4 272.3 273.1 284.8 314.4 321.8 338.5 347.5 332.4 310.8 290.6 -40 -35 275.9 271.4 268.5 269.2 275.7 294.5 315.9 326.0 338.6 329.2 308.9 288.1 -35 -30 270.9 268.4 265.6 264.4 269.5 277.9 302.9 311.5 323.9 319.9 305.5 284.9 -30 -25 264.5 263.5 261.2 258.6 263.4 267.6 284.2 295.0 305.1 304.2 296.3 280.5 -25 -20 257.0 256.0 255.0 253.6 256.1 259.7 267.7 279.1 287.5 289.9 284.9 275.5 -20 -15 250.4 249.2 250.0 251.5 250.7 253.2 259.4 268.8 276.6 281.2 275.8 271.1 -15 -10 246.8 247.0 248.9 251.8 250.3 251.0 258.9 266.4 273.5 276.6 270.9 267.9 -10 -5 246.1 248.9 251.5 253.4 254.2 254.0 261.7 269.0 274.7 274.5 269.0 265.5 -5 0 246.1 250.5 253.9 255.1 258.4 258.3 263.8 270.2 274.0 273.2 266.7 262.1 0 5 244.3 247.8 253.2 256.7 260.8 260.4 264.8 266.9 269.2 270.4 261.2 256.9 5 10 240.8 243.5 251.1 259.2 263.0 261.7 266.3 262.7 264.6 265.7 253.9 250.4 10 15 238.9 243.3 252.4 263.8 267.6 266.3 270.0 263.6 266.2 261.6 249.0 244.4 15 20 241.9 250.1 259.5 272.1 275.9 275.2 275.8 270.6 272.7 261.0 248.3 241.2 20 25 251.1 263.2 272.5 285.7 287.6 286.0 282.6 279.5 277.5 264.2 250.3 242.1 25 30 266.7 281.5 291.3 304.7 302.9 297.1 290.1 287.2 279.0 269.0 253.4 248.4 30 35 289.2 305.0 316.4 327.4 321.8 310.1 298.6 294.6 282.1 274.4 260.2 262.4 35 40 317.9 331.2 347.2 350.8 342.4 327.1 308.2 302.6 290.1 281.7 275.4 285.1 40 45 348.0 354.9 378.0 372.9 361.2 346.4 319.0 311.0 301.2 292.0 298.5 312.9 45 50 371.5 373.8 401.6 392.9 376.6 361.7 331.5 319.3 309.7 303.4 321.9 337.2 50 55 380.9 389.2 414.5 408.9 388.7 368.6 343.0 326.0 312.6 311.3 335.4 350.0 55 60 375.5 401.0 418.6 418.8 396.9 368.1 347.0 328.5 311.3 312.4 335.3 350.9 60 65 363.2 406.0 419.5 423.6 399.2 364.7 340.8 324.5 309.3 309.7 326.4 348.2 65 70 355.9 403.6 421.4 428.0 397.6 362.2 330.3 316.1 309.4 310.6 316.1 350.9 70 75 362.9 399.5 424.3 436.2 402.2 362.8 326.3 309.5 310.9 317.6 307.3 363.3 75 80 385.7 402.0 426.1 446.7 422.6 366.0 333.8 308.9 309.4 325.4 297.5 383.6 80 85 415.4 412.3 425.9 455.1 454.9 370.5 347.6 312.7 302.5 328.1 285.6 405.9 85 90 436.7 422.1 424.5 458.9 480.1 373.5 357.6 316.0 295.2 327.0 276.5 420.8 1999 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 262.3 249.8 246.3 243.4 265.4 244.7 276.0 242.0 146.5 155.3 217.9 287.9 -85 -80 262.7 252.0 252.8 255.1 270.4 259.6 282.4 234.9 155.6 154.0 197.7 269.0 -80 -75 265.3 256.8 261.9 267.2 275.6 277.7 286.2 225.9 166.6 154.8 181.6 249.1 -75 -70 272.3 265.5 270.2 271.8 278.1 288.2 282.6 224.9 179.4 166.6 194.4 247.7 -70 -65 282.3 277.4 277.3 272.4 281.0 291.3 278.1 240.8 203.3 199.0 239.4 269.2 -65 -60 290.3 287.9 282.9 277.3 287.9 294.8 283.6 272.7 244.5 251.5 294.5 299.4 -60 -55 291.5 290.3 284.2 285.7 295.3 301.8 299.8 307.6 294.1 304.8 330.2 318.3 -55 -50 285.6 283.4 279.5 288.1 294.7 306.3 315.0 328.8 329.9 335.4 336.6 317.2 -50 -45 277.2 273.6 272.1 280.8 284.1 302.3 317.6 330.9 340.4 339.7 327.5 302.9 -45 -40 271.1 267.4 267.5 271.6 271.7 292.2 308.3 321.4 333.9 332.4 318.3 287.9 -40 -35 269.2 266.2 267.1 268.3 265.6 282.7 295.5 308.9 322.7 324.4 311.6 279.9 -35 -30 269.9 266.7 266.9 268.2 264.9 275.6 284.2 295.9 311.4 315.4 303.7 278.0 -30 -25 269.8 265.8 263.0 263.4 262.3 266.7 273.1 282.1 298.5 303.1 293.5 276.4 -25 -20 267.2 262.9 256.4 253.4 255.6 255.4 261.6 269.2 284.2 289.4 283.3 271.4 -20 -15 263.2 260.2 252.2 247.1 250.4 247.8 254.3 261.2 273.0 279.1 274.3 263.5 -15 -10 260.7 260.7 253.3 251.0 253.0 249.7 255.6 260.5 269.7 275.4 266.9 256.4 -10 -5 261.6 264.2 257.6 260.7 262.3 259.9 264.3 266.9 274.3 276.5 262.8 253.7 -5 0 263.3 266.9 260.4 266.1 271.2 270.3 272.7 275.6 280.3 276.9 262.3 255.0 0 5 260.8 264.2 259.9 264.4 274.4 273.7 274.6 280.5 281.0 273.2 262.8 256.4 5 10 252.6 256.3 258.5 261.8 273.7 271.4 271.6 279.8 276.7 268.0 262.0 255.1 10 15 243.1 248.1 258.3 264.2 274.6 270.9 270.7 277.3 273.4 266.3 260.6 252.6 15 20 238.7 243.9 258.5 270.8 279.7 276.3 275.4 277.7 273.9 269.1 260.9 252.6 20 25 242.1 246.6 259.0 278.8 287.7 285.6 282.9 282.0 276.5 272.3 263.4 257.1 25 30 252.6 258.9 265.6 290.2 297.4 295.1 289.4 288.1 279.5 273.8 267.6 265.9 30 35 269.9 283.5 285.9 310.6 310.9 305.2 295.6 294.0 283.9 276.1 274.2 279.4 35 40 295.4 317.5 320.0 339.0 330.4 319.1 305.2 298.9 290.3 281.6 283.6 297.9 40 45 326.6 351.9 358.2 366.4 353.1 337.1 318.5 304.2 296.8 289.7 295.2 319.4 45 50 354.7 377.7 390.1 385.6 372.1 353.5 330.8 310.7 301.5 298.8 306.8 336.5 50 55 370.6 393.4 413.5 397.7 382.5 360.9 336.3 316.6 303.8 307.0 315.5 342.1 55 60 377.4 404.5 431.7 407.4 386.5 357.7 334.1 318.0 302.8 310.7 319.9 337.7 60 65 387.5 416.6 444.6 414.1 389.7 349.5 329.4 312.4 297.9 306.3 320.3 332.0 65 70 404.9 429.5 448.2 414.3 394.4 344.4 327.0 303.3 291.3 296.0 318.1 331.3 70 75 417.6 438.4 441.9 410.9 397.4 346.4 325.8 295.7 287.3 288.2 312.9 332.8 75 80 409.6 438.0 432.4 413.4 395.3 353.9 320.0 291.2 286.5 289.7 303.5 329.7 80 85 382.1 429.7 426.1 425.0 389.3 362.5 307.9 288.3 286.4 298.2 291.2 320.7 85 90 357.0 421.7 424.3 436.5 384.2 367.7 297.3 286.3 285.6 305.8 281.9 312.2 2000 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 259.0 252.0 234.3 248.7 262.7 242.7 262.7 246.6 164.1 205.3 362.8 296.3 -85 -80 266.3 256.0 243.4 250.1 270.3 249.7 264.6 234.1 161.4 185.0 318.9 299.5 -80 -75 275.1 260.9 255.5 255.6 281.1 260.6 268.6 218.7 158.1 168.6 273.1 302.2 -75 -70 281.1 265.8 265.4 266.7 289.7 270.7 274.6 213.9 162.7 180.5 264.5 303.5 -70 -65 285.6 272.9 273.5 280.8 292.7 277.9 282.0 228.7 188.2 225.8 295.5 306.5 -65 -60 290.7 282.0 280.6 290.7 290.9 283.7 289.7 261.1 239.2 285.7 334.2 313.4 -60 -55 293.8 287.1 283.9 290.9 287.3 291.3 297.6 297.8 300.5 330.2 348.8 319.2 -55 -50 290.2 283.4 279.8 282.8 284.4 300.9 306.5 325.1 344.1 346.7 338.8 316.2 -50 -45 280.4 273.8 270.3 273.0 282.5 307.4 315.2 338.0 356.8 345.1 324.3 303.7 -45 -40 271.3 266.0 262.3 267.3 281.0 305.5 319.4 338.4 347.7 337.8 316.2 289.6 -40 -35 267.9 264.0 260.3 266.4 278.7 295.0 314.9 329.5 331.7 327.3 309.7 281.4 -35 -30 268.6 265.2 261.7 266.6 274.2 281.3 302.9 313.4 316.0 313.6 299.7 278.6 -30 -25 268.4 264.5 261.4 264.0 267.3 269.8 287.8 294.7 301.5 300.5 289.1 275.6 -25 -20 264.7 260.4 257.9 259.3 259.8 262.5 274.1 278.8 288.1 290.3 281.3 269.4 -20 -15 259.1 256.2 254.7 255.7 254.5 258.2 263.6 268.5 276.7 280.4 273.8 261.4 -15 -10 255.3 255.3 255.0 255.2 253.5 256.2 257.7 263.5 269.6 268.6 263.0 254.7 -10 -5 253.8 256.7 257.1 256.4 256.2 256.7 257.4 262.6 266.2 258.2 251.7 250.0 -5 0 252.9 256.6 257.6 256.6 260.2 259.6 261.8 263.6 263.1 253.4 245.7 247.0 0 5 251.7 253.3 256.0 256.2 263.6 263.2 266.9 264.3 258.1 253.4 245.9 246.0 5 10 251.3 250.5 256.0 258.0 267.2 266.3 270.0 264.3 254.7 254.7 248.7 246.8 10 15 253.4 253.0 260.3 264.9 272.6 270.0 271.7 265.6 258.0 255.8 251.1 248.3 15 20 257.4 260.1 267.2 276.5 280.5 276.2 275.0 269.6 266.9 257.8 252.8 249.0 20 25 262.4 269.0 275.0 289.9 289.7 284.6 281.4 276.1 275.3 261.3 253.7 250.3 25 30 270.9 280.4 287.2 303.4 298.8 293.0 289.1 283.4 279.2 265.5 254.5 257.5 30 35 288.0 298.0 308.1 317.4 308.9 301.0 295.6 290.4 281.2 270.1 259.5 274.0 35 40 314.7 322.7 335.7 332.8 322.6 310.5 301.7 296.9 285.6 276.2 274.1 297.6 40 45 342.8 349.0 361.0 349.8 340.1 323.7 310.7 302.7 293.2 284.9 297.0 321.7 45 50 360.1 371.4 376.5 366.0 356.8 338.6 322.7 307.5 301.3 295.2 317.1 342.0 50 55 362.1 388.0 384.7 377.6 367.3 349.2 331.7 310.3 305.2 302.7 322.1 358.2 55 60 357.3 397.5 390.9 382.2 371.1 352.0 330.9 309.1 301.8 303.4 314.5 367.3 60 65 355.9 396.3 394.1 383.1 373.2 350.2 322.1 303.6 292.3 297.5 311.5 360.5 65 70 357.2 380.3 389.7 387.4 377.6 348.3 314.8 296.4 284.0 290.3 326.3 335.0 70 75 351.6 353.1 378.6 399.6 382.0 345.8 315.3 289.6 283.1 284.5 350.9 304.9 75 80 332.3 324.9 369.3 417.1 380.6 337.8 321.0 281.7 289.0 277.5 364.8 292.1 80 85 305.2 305.0 367.9 432.8 372.9 323.5 325.0 272.3 295.5 267.4 358.4 303.3 85 90 285.3 295.9 370.7 441.3 365.4 311.6 325.6 265.0 298.5 258.9 345.0 320.4 2001 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 267.7 251.0 236.9 276.0 248.2 296.0 295.3 256.8 160.8 182.0 239.5 259.9 -85 -80 274.2 255.2 246.0 269.8 252.4 291.3 296.4 247.0 149.9 162.8 218.1 259.2 -80 -75 282.4 261.5 257.9 264.4 259.6 288.5 291.9 235.6 143.6 147.8 201.7 261.0 -75 -70 288.2 269.0 267.4 267.0 268.9 293.5 280.8 234.6 159.7 162.2 216.0 268.8 -70 -65 292.1 278.0 275.1 278.5 279.7 306.0 274.2 251.2 204.9 213.7 261.4 283.4 -65 -60 295.6 286.8 282.6 291.2 290.7 319.1 284.3 281.3 265.9 282.5 311.7 299.2 -60 -55 297.0 290.2 286.9 295.2 298.9 326.3 308.0 311.6 315.4 333.1 337.2 308.1 -55 -50 293.8 285.4 283.6 288.3 300.6 325.3 327.8 329.4 337.4 348.6 334.2 306.3 -50 -45 286.5 275.1 274.0 277.3 294.7 318.2 330.2 332.5 341.0 343.7 322.1 297.6 -45 -40 278.7 266.0 265.8 270.0 284.6 307.4 319.6 326.5 340.6 338.3 316.5 290.0 -40 -35 273.6 262.2 263.7 268.5 275.2 294.1 307.5 316.3 337.8 334.7 314.9 287.1 -35 -30 270.4 262.4 265.0 268.1 268.1 279.4 297.1 302.8 326.3 324.9 308.2 286.1 -30 -25 266.8 262.5 263.6 264.2 262.5 265.9 283.9 287.5 306.5 307.5 295.9 282.4 -25 -20 262.4 259.8 257.9 257.7 256.8 256.0 266.8 273.1 286.8 290.4 284.6 275.8 -20 -15 258.1 255.1 252.2 253.3 251.6 250.2 252.4 262.3 273.6 279.4 278.4 270.1 -15 -10 254.7 252.4 251.3 253.6 248.7 248.0 247.5 256.8 267.8 274.5 275.5 267.7 -10 -5 251.6 253.7 254.5 256.8 249.2 249.0 252.4 257.6 267.2 272.0 272.9 266.5 -5 0 247.1 255.8 256.9 258.7 253.3 252.9 260.3 262.5 267.7 268.2 268.7 262.9 0 5 241.3 254.4 255.6 259.1 259.7 258.6 265.5 267.6 267.4 262.9 262.9 255.7 5 10 237.9 250.4 254.1 261.8 266.9 264.9 268.5 270.1 267.3 258.9 256.9 247.2 10 15 240.2 248.6 256.7 269.3 274.1 270.9 272.9 271.4 269.2 258.8 252.9 241.1 15 20 247.4 251.7 264.4 280.2 281.6 277.0 279.2 274.7 272.7 261.8 251.9 239.2 20 25 256.6 259.0 276.1 290.8 291.0 284.4 285.1 281.2 275.0 265.2 253.9 241.6 25 30 267.2 270.1 291.6 301.2 303.5 293.7 290.5 289.4 276.7 268.3 259.3 249.9 30 35 283.5 288.0 312.5 315.1 318.5 305.2 297.9 296.6 280.8 273.3 269.0 266.7 35 40 308.8 316.4 336.8 335.9 334.2 318.7 308.2 301.3 288.8 280.7 282.0 291.0 40 45 339.0 352.8 360.4 361.6 348.5 333.3 319.4 305.0 298.9 289.4 294.6 316.2 45 50 362.4 386.5 382.2 385.7 360.0 347.2 328.8 309.9 307.5 298.6 302.8 333.4 50 55 371.0 406.2 403.8 401.4 369.5 356.9 334.8 315.5 311.6 307.8 306.4 339.2 55 60 371.5 410.4 422.6 407.2 377.8 359.3 335.5 317.3 309.0 312.1 308.4 338.1 60 65 377.0 410.1 431.3 408.5 384.7 355.3 330.1 312.6 300.7 305.8 311.0 336.8 65 70 390.7 418.9 426.8 412.0 389.6 349.9 322.0 304.5 292.7 290.6 314.7 337.9 70 75 402.2 441.6 419.6 418.7 393.2 348.9 318.5 298.6 290.1 276.1 318.7 339.5 75 80 399.7 471.3 425.7 424.6 396.9 353.8 324.7 296.1 291.8 271.8 321.5 340.8 80 85 383.7 496.4 447.6 426.6 401.2 361.3 337.1 295.0 293.1 276.6 322.5 342.2 85 90 368.6 509.7 468.4 425.8 404.5 366.5 346.7 294.0 292.6 282.6 322.3 343.4 2002 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 264.6 254.2 231.8 237.5 240.0 211.0 271.3 264.5 272.3 240.6 353.9 296.8 -85 -80 269.5 258.5 243.6 246.0 260.2 232.4 283.4 256.7 252.3 245.7 353.6 302.4 -80 -75 276.6 264.3 258.4 259.5 282.2 260.8 294.4 246.9 233.9 257.9 348.2 307.6 -75 -70 283.1 270.3 268.9 273.4 289.3 281.0 294.2 245.9 239.5 281.1 338.1 308.6 -70 -65 288.2 277.7 274.9 284.2 284.3 289.1 287.9 262.7 274.6 313.8 330.5 308.4 -65 -60 291.4 285.4 280.8 289.6 282.8 293.4 290.0 296.0 321.9 345.4 330.8 312.6 -60 -55 291.7 288.5 286.0 289.4 292.7 301.6 306.4 331.0 355.6 362.9 334.5 319.5 -55 -50 288.1 284.5 285.3 284.4 304.2 311.0 326.0 349.9 365.0 362.3 332.2 320.1 -50 -45 282.1 276.7 277.2 276.5 303.6 312.7 333.4 347.2 359.2 350.4 321.8 309.7 -45 -40 276.5 271.2 267.5 269.3 290.5 303.5 324.2 331.0 348.8 335.4 311.0 293.7 -40 -35 273.0 269.7 262.5 265.4 275.5 288.3 306.3 312.7 334.1 320.1 304.8 281.9 -35 -30 271.5 269.5 262.1 264.1 265.2 273.4 288.8 297.3 314.6 305.3 299.8 277.7 -30 -25 270.2 267.3 261.8 262.0 257.6 261.3 273.8 284.1 295.9 292.3 291.0 276.6 -25 -20 267.9 263.4 258.9 257.6 249.8 252.0 261.0 272.0 282.7 281.8 278.8 272.7 -20 -15 264.7 261.0 256.4 253.5 244.8 246.8 252.2 262.8 274.6 273.0 268.3 265.5 -15 -10 262.4 262.2 258.7 254.1 247.1 247.7 250.9 259.3 269.1 266.2 262.9 258.9 -10 -5 262.1 265.6 264.9 260.4 256.1 254.6 257.2 262.3 266.4 263.5 261.4 255.1 -5 0 262.6 267.0 268.7 267.4 265.2 263.1 265.8 268.1 266.9 264.7 259.6 253.0 0 5 260.6 263.5 265.4 270.0 269.0 268.2 270.4 271.3 268.4 265.5 255.5 250.2 5 10 254.4 256.9 257.8 267.8 268.6 269.4 270.1 269.8 268.2 263.8 251.9 247.1 10 15 246.0 251.6 253.0 265.6 269.1 270.7 269.6 267.8 267.0 262.4 252.8 245.9 15 20 240.5 249.3 254.6 268.5 273.9 275.3 272.8 269.7 267.6 264.3 257.4 248.3 20 25 242.0 251.2 262.0 277.1 282.7 283.1 279.6 276.4 270.8 269.2 262.5 254.4 25 30 252.1 260.1 275.0 289.6 295.0 292.8 287.6 284.9 276.4 273.9 268.2 265.3 30 35 270.7 278.9 294.4 306.0 311.4 304.9 296.2 293.2 283.2 277.6 278.1 283.7 35 40 295.5 304.3 319.7 328.4 332.1 321.1 306.3 301.0 290.4 282.4 293.1 310.3 40 45 321.2 329.4 346.7 355.9 353.1 339.0 317.8 309.5 298.5 291.1 309.3 338.4 45 50 342.4 350.7 370.2 380.8 368.1 352.0 328.0 317.9 307.2 303.4 321.2 356.2 50 55 357.2 370.0 388.9 393.6 374.5 354.7 332.9 321.9 312.9 314.3 326.4 358.5 55 60 368.8 387.9 404.7 396.1 375.8 350.0 331.9 318.6 309.7 316.3 324.5 353.0 60 65 382.6 401.9 419.5 402.4 377.3 347.3 328.5 309.9 298.4 306.8 313.5 351.2 65 70 399.9 414.3 433.2 423.1 381.0 352.6 327.0 301.7 287.4 290.7 295.0 353.2 70 75 417.2 436.1 444.9 450.3 387.2 361.7 327.2 296.9 284.0 275.6 277.8 348.3 75 80 430.5 476.8 454.7 464.0 395.3 365.7 324.7 292.4 286.0 264.8 273.3 327.5 80 85 438.0 528.7 462.6 456.0 403.8 361.3 317.3 285.7 287.1 257.3 282.9 296.3 85 90 441.2 566.0 467.4 441.8 409.6 354.9 310.3 279.6 285.9 252.7 294.4 272.5 2003 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 259.1 254.3 250.1 291.8 252.7 275.7 249.2 256.4 171.8 195.5 254.1 279.4 -85 -80 270.3 263.7 258.1 283.5 263.4 276.7 262.2 243.3 162.4 181.6 249.7 283.5 -80 -75 282.7 274.3 269.3 272.1 275.9 279.2 278.0 226.5 154.6 172.4 248.4 288.4 -75 -70 288.6 281.1 278.8 265.3 282.8 283.1 287.5 219.9 163.5 189.1 260.7 292.7 -70 -65 291.8 286.1 285.1 267.6 286.0 288.7 290.6 233.1 198.4 238.5 290.9 298.6 -65 -60 299.0 292.8 288.6 277.5 291.6 295.6 294.1 263.7 254.1 303.4 328.2 307.1 -60 -55 307.4 298.3 287.7 287.2 299.5 301.8 302.7 297.3 308.6 349.8 351.1 313.6 -55 -50 307.3 295.7 281.3 288.7 301.9 303.6 313.2 318.3 340.7 358.9 348.7 311.2 -50 -45 295.2 284.6 272.6 281.4 293.2 299.1 318.9 324.1 347.8 344.3 330.8 300.1 -45 -40 279.8 272.4 266.7 271.3 278.9 290.1 316.8 321.9 341.6 329.0 315.4 288.3 -40 -35 270.8 266.3 265.8 264.9 268.5 280.9 308.4 317.0 330.8 320.3 309.1 283.4 -35 -30 269.1 266.5 267.0 262.9 265.2 274.7 297.1 308.5 317.7 312.4 305.6 284.6 -30 -25 267.8 267.6 265.7 261.9 264.3 270.8 284.5 294.7 303.1 300.2 297.8 284.2 -25 -20 262.4 265.1 260.5 259.0 261.3 266.7 272.6 278.7 288.5 286.2 285.5 277.3 -20 -15 255.4 259.5 254.5 254.9 256.7 260.8 263.4 265.7 276.2 274.8 273.4 267.3 -15 -10 251.4 254.3 251.3 252.2 253.5 255.1 258.0 259.3 268.0 268.1 264.7 260.7 -10 -5 250.6 250.9 250.8 251.9 252.5 252.5 256.3 259.3 265.0 264.9 259.4 259.4 -5 0 249.4 247.2 250.6 253.2 252.7 254.9 256.7 262.1 265.4 262.1 255.3 258.9 0 5 245.8 242.7 249.4 255.8 254.7 261.1 258.5 264.7 265.9 257.8 251.2 253.9 5 10 242.1 240.3 249.7 260.9 260.7 268.5 262.6 267.1 266.0 254.1 248.4 244.6 10 15 242.2 243.8 254.9 268.8 271.4 275.3 270.2 271.3 268.1 254.5 248.2 236.9 15 20 246.7 252.8 264.5 278.5 284.0 281.8 279.2 277.7 272.8 259.4 249.7 236.2 20 25 254.2 264.7 277.2 289.4 295.1 289.3 286.6 284.2 277.1 265.2 251.6 243.4 25 30 266.9 281.8 293.9 302.3 305.1 298.4 292.2 288.7 279.6 269.7 255.6 256.4 30 35 290.2 309.6 317.0 318.8 317.7 308.8 298.6 292.5 282.6 274.8 265.6 273.7 35 40 324.2 347.6 345.7 339.0 334.8 319.8 308.8 298.2 288.8 282.6 281.9 293.9 40 45 358.2 384.1 373.0 361.4 353.6 331.4 322.1 306.9 297.6 292.7 300.1 313.7 45 50 377.5 404.4 391.0 383.3 369.3 343.1 334.5 316.1 304.9 302.6 315.4 327.3 50 55 379.9 405.5 398.5 401.8 380.3 353.4 341.2 321.3 306.8 309.0 326.9 331.7 55 60 378.0 397.7 400.6 414.1 388.4 359.9 339.6 319.4 303.0 308.8 333.5 330.0 60 65 383.8 392.8 403.4 419.6 394.0 361.0 331.7 312.4 298.6 300.7 330.5 328.2 65 70 395.2 394.6 410.9 420.6 396.4 359.0 323.3 305.3 299.6 287.8 316.3 329.0 70 75 399.3 400.0 425.4 420.2 396.0 357.1 318.2 300.5 305.2 276.0 298.2 330.1 75 80 387.6 403.5 446.4 419.8 395.5 356.4 316.0 296.3 307.8 269.1 287.7 329.0 80 85 365.7 403.7 469.0 419.5 397.2 356.9 313.7 290.3 302.4 266.2 288.9 326.1 85 90 348.6 402.5 484.0 419.4 399.6 357.5 311.6 285.0 294.6 265.2 294.2 323.8 2004 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 262.8 248.3 246.6 253.6 346.2 255.4 235.1 243.7 173.3 224.2 237.9 280.8 -85 -80 264.3 258.4 254.6 249.6 330.8 254.8 249.7 246.9 170.4 216.3 237.4 286.7 -80 -75 269.1 270.8 265.4 249.3 309.3 258.4 270.4 249.5 172.2 212.9 242.4 291.6 -75 -70 278.6 278.7 274.6 259.5 293.9 270.1 287.9 252.2 188.4 228.8 260.1 291.7 -70 -65 290.3 281.5 281.9 277.2 290.0 286.3 299.3 262.0 223.8 268.2 290.5 291.3 -65 -60 298.6 282.4 287.3 291.8 294.5 299.0 306.6 283.1 269.8 316.0 321.2 296.8 -60 -55 298.9 283.0 287.7 294.7 298.7 302.7 311.5 308.9 307.9 347.3 335.1 306.1 -55 -50 291.9 282.1 280.8 287.4 296.5 299.2 312.6 326.0 326.1 351.1 328.7 309.4 -50 -45 283.2 279.3 270.1 277.3 288.8 294.1 308.9 326.6 327.7 339.6 314.8 302.7 -45 -40 276.9 275.4 263.1 269.7 280.1 289.3 301.5 315.0 321.9 329.1 306.4 292.5 -40 -35 273.6 271.2 262.5 264.7 272.9 282.0 291.8 299.9 313.0 321.4 303.1 286.3 -35 -30 271.0 267.0 263.6 259.6 265.9 270.1 280.0 285.3 301.1 309.3 296.7 283.8 -30 -25 267.4 262.8 261.0 253.9 258.3 256.4 266.4 271.2 287.7 291.7 284.8 279.4 -25 -20 262.7 259.1 255.4 249.5 251.5 246.9 254.1 258.2 275.6 275.7 273.3 272.1 -20 -15 259.1 256.9 252.7 248.9 249.1 245.4 247.9 249.9 265.8 267.3 268.5 266.2 -15 -10 258.4 257.1 256.5 253.3 252.7 251.4 250.9 250.2 260.0 266.0 269.6 264.5 -10 -5 258.9 258.8 262.9 261.3 260.3 260.3 260.5 258.8 261.0 267.3 270.6 263.8 -5 0 256.1 258.2 264.3 269.0 268.1 267.2 269.8 270.2 268.1 266.8 266.9 259.3 0 5 246.9 252.9 258.7 273.1 273.3 269.4 272.5 277.4 275.6 264.3 259.5 251.9 5 10 234.9 244.7 251.5 272.7 275.5 268.5 270.4 277.9 278.2 263.0 254.2 247.5 10 15 229.0 238.7 249.2 270.2 276.2 269.3 270.3 275.2 276.1 265.5 255.1 249.8 15 20 234.2 238.5 253.1 270.5 278.0 275.5 276.5 274.7 273.4 269.9 260.1 256.3 20 25 247.2 245.7 261.9 278.1 283.3 286.5 286.5 278.2 273.7 272.7 264.0 262.0 25 30 261.4 261.5 276.2 293.5 294.1 298.9 294.6 285.1 278.1 274.5 265.6 267.6 30 35 277.2 287.0 298.2 313.1 310.8 310.0 299.5 293.5 284.6 278.6 269.4 278.4 35 40 302.4 319.1 326.8 332.8 331.2 320.6 305.0 301.5 290.7 285.0 278.4 297.2 40 45 339.1 351.9 356.6 352.0 351.5 332.8 314.9 308.4 295.1 290.6 291.1 318.4 45 50 372.7 380.8 382.9 372.0 367.8 346.0 326.8 313.9 299.4 294.7 303.9 332.6 50 55 383.7 402.4 404.8 390.9 378.4 356.0 333.2 316.3 303.2 299.5 313.7 338.3 55 60 373.3 413.5 420.5 403.2 383.7 358.2 329.7 313.2 302.5 303.3 316.9 342.3 60 65 366.3 412.8 425.9 406.2 386.1 353.5 321.5 304.4 295.3 299.9 310.4 347.8 65 70 384.7 406.9 422.2 404.0 387.8 347.9 318.3 294.8 287.4 287.6 297.4 348.2 70 75 423.1 411.8 422.1 404.6 390.8 347.4 323.2 290.5 287.5 273.8 289.5 334.2 75 80 455.8 439.1 440.4 411.6 395.9 352.3 330.3 293.1 296.5 267.7 297.9 305.9 80 85 466.9 480.9 475.7 421.3 402.0 358.8 332.6 298.5 307.5 271.0 320.5 274.6 85 90 464.7 512.4 505.1 427.7 406.3 362.8 331.0 302.1 313.7 276.3 340.2 254.5 2005 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 261.8 252.8 239.1 245.4 278.5 262.7 278.5 198.2 180.9 188.3 277.5 266.3 -85 -80 266.3 258.2 248.7 240.9 276.3 269.9 270.5 198.1 164.6 179.3 270.9 275.2 -80 -75 271.3 266.3 262.2 240.7 276.7 279.2 260.8 196.8 152.4 176.5 266.1 286.4 -75 -70 275.2 274.6 273.5 252.0 282.3 285.6 258.3 199.4 166.4 196.9 273.0 294.2 -70 -65 281.7 281.9 280.5 271.0 289.6 288.0 268.6 217.3 213.7 245.9 294.6 298.7 -65 -60 292.4 285.4 283.8 285.9 293.7 290.9 289.5 256.8 278.4 307.2 321.0 303.3 -60 -55 300.8 282.4 283.2 288.0 294.0 298.3 312.6 306.1 330.4 350.8 336.5 308.1 -55 -50 298.9 274.1 278.8 281.1 295.0 308.3 328.8 341.8 353.1 361.5 334.5 309.4 -50 -45 288.1 266.0 272.9 274.9 297.4 314.1 333.7 351.4 355.5 351.8 323.6 305.3 -45 -40 278.0 262.8 268.2 273.3 295.8 311.0 327.3 341.4 352.0 340.4 315.4 299.0 -40 -35 273.7 263.3 265.3 272.4 285.9 299.6 312.0 324.7 343.5 331.9 311.0 293.8 -35 -30 271.6 263.6 262.3 267.5 271.0 284.6 292.9 307.2 325.9 320.9 304.4 289.4 -30 -25 266.4 261.3 258.2 259.0 259.3 270.7 275.5 289.3 303.3 305.4 293.0 282.5 -25 -20 259.1 257.1 254.1 251.6 254.8 259.6 263.2 273.2 284.4 289.7 280.0 272.8 -20 -15 254.8 253.5 251.5 248.8 254.8 251.7 256.4 262.7 273.0 277.3 269.4 263.8 -15 -10 255.8 251.6 250.7 249.2 253.7 247.2 253.3 258.9 266.9 268.5 262.0 258.5 -10 -5 257.9 250.5 249.9 250.3 250.1 246.7 252.6 258.7 262.7 261.8 256.0 256.2 -5 0 255.7 248.6 248.3 250.7 247.5 249.6 253.6 257.8 259.2 255.3 249.3 254.0 0 5 250.0 246.2 248.1 252.4 249.4 254.0 255.9 255.4 256.8 249.2 242.4 249.6 5 10 246.5 246.1 252.2 257.2 255.9 258.8 260.4 255.8 257.2 246.9 239.1 244.0 10 15 249.5 250.6 259.8 264.8 265.1 264.4 267.7 262.1 261.4 250.9 241.9 239.8 15 20 257.0 258.3 267.6 273.8 276.1 272.1 276.2 271.6 267.4 259.0 248.7 239.4 20 25 265.7 267.5 275.2 285.4 289.9 282.7 283.8 279.2 272.5 265.8 254.7 245.0 25 30 276.8 280.6 288.1 302.1 306.3 295.6 289.8 284.4 277.0 269.2 259.2 258.5 30 35 294.7 302.8 311.8 323.4 322.8 309.3 296.2 290.4 282.6 272.0 266.7 279.5 35 40 319.4 334.1 342.8 344.2 336.4 322.0 305.5 298.6 289.2 277.6 280.6 304.5 40 45 341.6 365.6 369.1 359.6 347.4 332.2 318.2 306.2 295.0 285.0 297.3 326.3 45 50 352.8 385.7 383.1 370.7 356.8 339.7 330.2 310.9 298.9 291.9 309.9 339.0 50 55 354.9 388.9 388.0 382.3 364.4 344.6 335.1 312.8 300.9 297.0 316.5 342.6 55 60 355.9 377.2 391.6 395.2 369.9 347.1 330.9 312.2 299.6 299.0 320.7 339.6 60 65 358.6 355.9 395.2 405.6 374.4 347.0 323.0 307.1 294.6 296.4 324.2 331.1 65 70 356.4 331.0 395.2 411.8 380.0 346.0 318.7 296.6 289.1 287.5 321.5 318.6 70 75 344.2 309.6 393.0 417.3 387.2 346.6 318.4 284.2 287.0 271.9 304.0 308.9 75 80 325.9 297.3 395.6 426.9 393.1 349.5 316.1 273.9 287.9 251.4 269.3 310.4 80 85 310.3 294.6 405.7 439.6 395.8 353.3 308.0 267.6 288.1 230.6 227.6 323.6 85 90 302.3 296.1 415.8 449.0 396.2 355.8 299.9 265.0 286.9 216.9 198.3 336.9 2006 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 267.7 268.9 255.6 252.9 271.2 244.8 293.3 220.1 162.9 175.2 208.3 290.8 -85 -80 271.4 272.6 266.7 261.5 279.6 250.1 299.6 217.8 153.9 155.3 191.6 280.9 -80 -75 277.1 274.8 281.6 272.7 291.1 258.2 302.9 214.4 147.0 142.2 182.3 271.4 -75 -70 283.4 273.8 291.8 280.6 299.5 266.5 296.6 216.3 157.3 161.9 201.9 273.5 -70 -65 290.1 274.7 294.4 284.4 301.5 275.1 285.6 231.6 194.0 216.7 248.6 288.1 -65 -60 296.6 280.6 291.8 286.1 298.1 284.7 281.1 260.3 249.8 280.7 297.2 305.2 -60 -55 300.7 285.9 287.1 286.6 291.5 293.7 287.9 290.1 301.6 320.7 323.7 312.6 -55 -50 300.0 282.3 281.8 283.8 283.4 297.8 299.1 306.4 329.0 330.5 327.4 307.3 -50 -45 294.1 271.0 276.2 276.8 275.9 294.6 304.2 306.8 333.3 328.5 323.7 296.8 -45 -40 285.4 261.8 271.1 269.3 270.9 286.2 299.5 300.9 327.9 327.5 320.9 288.7 -40 -35 277.2 261.4 266.9 265.2 268.1 276.7 288.5 296.1 319.4 321.9 313.9 283.9 -35 -30 271.2 265.5 263.5 263.0 264.9 267.8 275.8 289.9 306.5 305.4 298.9 278.3 -30 -25 266.8 265.6 259.7 259.0 258.7 258.8 263.3 277.8 289.8 284.6 282.6 269.7 -25 -20 262.3 258.9 255.2 252.2 250.2 250.3 252.8 263.2 274.9 270.0 273.1 260.7 -20 -15 256.7 251.3 251.6 246.6 244.1 245.3 247.8 254.3 266.6 264.1 270.1 255.0 -15 -10 251.8 249.7 251.1 246.4 244.5 246.5 250.5 256.0 266.3 262.4 268.1 252.7 -10 -5 249.2 252.9 254.0 251.4 251.0 253.6 259.8 265.8 271.9 262.2 264.7 251.6 -5 0 248.7 253.4 257.0 256.5 259.9 262.6 270.2 275.8 278.5 263.9 261.7 251.0 0 5 247.4 247.2 256.7 258.6 267.2 269.6 276.3 280.0 281.9 267.2 261.0 252.0 5 10 243.8 239.7 254.2 259.2 271.6 273.5 278.1 279.5 281.4 270.3 261.9 254.2 10 15 240.6 238.2 253.2 262.0 275.0 276.3 279.3 279.5 279.4 271.4 262.8 255.2 15 20 241.8 243.2 256.8 269.6 281.0 280.4 283.0 282.4 277.9 271.0 263.7 253.9 20 25 249.1 250.7 266.2 281.9 291.3 287.9 288.7 286.3 277.9 271.3 265.9 253.8 25 30 262.2 261.2 282.4 298.2 305.4 299.2 294.9 289.7 281.0 274.1 270.7 260.9 30 35 281.6 282.0 306.0 317.5 320.6 313.5 301.9 294.3 287.9 279.0 279.5 278.1 35 40 307.8 317.1 335.2 337.7 335.1 328.4 310.3 301.7 295.7 284.1 291.8 299.8 40 45 336.5 358.8 364.3 357.0 348.9 340.1 320.1 311.2 300.8 288.5 304.3 316.2 45 50 358.1 391.8 387.6 375.1 363.2 346.8 329.3 320.4 303.7 294.1 313.6 323.5 50 55 365.1 408.6 405.0 392.9 378.4 349.7 335.1 325.6 306.5 301.8 318.9 326.8 55 60 361.9 415.1 419.9 409.9 391.6 351.8 335.5 323.3 307.7 307.8 323.2 330.5 60 65 362.3 421.5 432.8 423.0 397.8 354.7 331.4 313.4 302.5 306.0 330.7 330.6 65 70 374.6 431.2 437.5 429.0 395.4 358.5 326.5 301.1 290.6 296.1 344.5 321.3 70 75 392.1 439.8 423.1 427.8 388.4 362.8 323.5 292.6 278.2 285.0 362.7 306.5 75 80 401.8 442.7 385.8 421.5 383.0 366.9 321.2 290.6 270.6 278.4 380.3 298.6 80 85 399.3 439.9 337.7 414.0 382.4 370.1 317.8 292.5 267.6 276.7 392.4 303.6 85 90 392.7 436.0 302.9 409.3 384.2 371.8 314.5 294.4 266.7 276.7 397.8 312.9 2007 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 265.1 256.3 236.8 243.5 216.6 250.8 315.0 253.3 192.7 214.5 202.2 261.1 -85 -80 270.1 264.9 249.7 250.9 238.7 261.7 303.0 238.3 180.4 199.5 210.6 260.2 -80 -75 275.3 274.0 265.3 260.3 265.6 275.4 280.3 219.4 171.3 189.4 223.9 264.7 -75 -70 277.6 277.5 273.4 266.9 280.4 283.8 255.5 212.9 184.1 205.4 242.4 279.7 -70 -65 279.6 277.0 273.2 270.8 281.4 286.1 244.0 231.1 226.9 251.8 269.1 300.3 -65 -60 284.6 277.0 270.8 275.5 280.2 288.2 257.6 271.8 287.6 310.1 302.7 316.0 -60 -55 289.4 277.9 270.2 281.6 286.3 295.3 291.8 317.5 339.0 351.7 332.2 319.0 -55 -50 288.1 276.5 270.3 284.4 295.3 304.4 326.3 347.5 361.0 364.1 345.7 311.4 -50 -45 279.6 272.0 268.7 280.2 296.6 309.0 343.0 355.0 357.4 357.7 342.7 301.2 -45 -40 269.8 267.0 265.4 271.3 287.2 305.8 338.7 347.0 343.9 346.7 332.4 293.9 -40 -35 264.8 264.1 262.2 263.1 273.6 296.7 322.3 331.7 329.4 334.8 321.6 290.3 -35 -30 264.3 262.1 259.4 258.5 263.4 285.4 303.5 312.5 315.8 321.4 311.4 287.5 -30 -25 263.8 258.6 256.4 256.5 258.0 274.3 285.7 292.4 302.9 307.5 300.6 283.2 -25 -20 259.9 253.6 253.1 254.6 254.7 263.7 269.5 275.4 290.3 294.0 288.2 276.9 -20 -15 253.3 249.7 251.1 251.7 251.6 254.2 256.2 264.5 277.0 279.8 275.2 269.6 -15 -10 247.9 249.9 251.1 249.2 249.3 247.8 248.7 260.2 264.1 265.0 263.9 263.4 -10 -5 245.9 253.4 252.2 249.0 248.8 245.7 248.3 260.1 255.9 254.6 256.5 259.7 -5 0 246.6 256.0 252.5 251.3 250.8 247.8 252.7 260.8 255.3 252.4 253.2 258.1 0 5 248.0 255.4 251.8 256.3 255.4 253.1 258.6 260.9 260.3 256.0 252.1 255.9 5 10 248.9 253.5 252.4 263.9 262.0 260.2 264.1 261.7 266.2 260.1 252.1 251.5 10 15 249.7 254.6 256.3 272.3 270.0 267.9 268.9 265.4 269.9 262.1 253.8 246.1 15 20 251.6 259.9 263.2 280.4 279.0 275.8 273.8 271.9 271.9 262.9 256.7 243.4 20 25 256.7 268.5 273.6 290.7 290.3 284.6 280.1 278.8 273.6 263.9 258.6 246.5 25 30 268.3 282.1 290.7 307.2 305.4 295.3 288.5 285.2 277.5 265.9 260.0 256.8 30 35 289.2 303.2 316.8 329.9 323.3 308.0 298.5 291.3 283.9 269.3 265.0 274.5 35 40 317.9 330.4 347.5 352.1 339.2 320.6 307.4 296.8 290.4 274.9 276.4 298.6 40 45 345.6 358.5 373.9 366.2 348.6 331.0 314.1 301.9 295.1 282.8 291.1 323.3 45 50 363.1 382.7 391.6 371.2 352.5 339.5 320.5 307.2 299.2 291.5 303.0 338.7 50 55 368.5 400.1 402.9 373.7 357.8 347.0 328.1 312.4 303.4 296.2 308.9 338.6 55 60 367.6 406.9 410.6 379.9 369.1 352.5 333.4 314.4 305.2 292.8 310.7 328.6 60 65 365.6 401.4 412.6 389.0 382.3 353.1 330.2 309.9 302.0 285.2 312.7 322.1 65 70 362.7 393.5 409.8 396.2 389.6 348.6 319.4 301.1 295.4 284.7 318.3 328.1 70 75 357.4 404.9 413.5 399.6 389.0 344.6 309.2 294.2 288.9 301.6 328.6 342.9 75 80 350.8 450.6 436.8 401.6 385.5 346.6 307.6 292.6 283.0 333.8 342.3 356.0 80 85 345.6 517.7 476.6 404.5 384.9 354.6 313.9 294.9 276.5 367.8 355.7 361.6 85 90 343.3 567.9 508.6 407.1 386.4 361.7 320.4 297.2 271.2 388.7 364.1 362.1 2008 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 269.3 249.0 266.8 290.8 325.7 306.8 296.2 328.1 162.0 169.1 206.5 254.2 -85 -80 269.6 257.5 266.7 277.7 315.2 312.1 290.2 290.5 150.1 163.8 195.6 253.2 -80 -75 272.9 268.5 268.7 265.1 299.2 315.3 280.1 246.2 144.5 163.9 191.3 255.1 -75 -70 281.0 276.9 274.3 266.0 286.1 310.2 271.1 227.5 163.7 182.0 210.6 263.8 -70 -65 291.5 282.8 281.4 280.1 282.9 299.7 270.1 243.1 210.4 222.6 254.1 280.0 -65 -60 298.8 287.2 284.7 295.0 290.5 292.7 280.1 275.6 267.5 274.9 302.1 297.9 -60 -55 298.4 288.1 280.3 298.9 300.9 294.6 295.9 300.3 309.2 317.7 330.4 308.5 -55 -50 291.6 283.4 271.1 291.8 303.3 300.9 307.7 309.8 326.5 337.3 332.5 307.1 -50 -45 282.9 275.5 263.5 281.9 293.8 302.6 308.4 314.4 330.0 338.1 321.9 297.0 -45 -40 275.3 269.2 260.7 275.0 278.7 296.4 299.1 320.5 329.6 330.7 312.3 285.1 -40 -35 269.8 267.0 261.4 271.0 267.0 285.5 286.0 321.0 323.8 320.1 305.6 277.1 -35 -30 266.3 267.0 262.1 267.1 261.2 274.0 274.7 308.5 310.7 307.5 298.2 273.5 -30 -25 263.9 265.2 261.1 262.2 257.7 263.5 266.6 287.3 294.9 295.1 289.1 271.8 -25 -20 261.6 259.9 258.8 257.4 253.5 254.3 260.2 268.9 281.6 284.3 279.9 269.9 -20 -15 258.3 254.0 256.4 254.9 250.0 247.7 255.1 258.8 271.2 274.7 270.6 266.4 -15 -10 255.3 252.5 255.6 256.0 251.4 245.4 252.9 256.0 263.7 266.6 261.5 261.2 -10 -5 254.7 256.6 256.8 260.9 259.0 248.2 256.0 258.3 262.1 263.3 255.1 256.3 -5 0 256.5 261.6 258.8 267.3 269.0 254.4 263.5 264.3 267.6 265.7 253.5 254.0 0 5 256.8 261.3 259.2 271.7 275.8 261.4 271.3 271.4 275.2 269.6 255.2 254.8 5 10 252.9 255.5 258.0 271.7 276.6 267.6 275.8 276.2 278.2 269.8 256.5 256.3 10 15 247.6 249.1 257.3 269.1 274.0 272.1 277.0 277.4 275.4 266.2 255.4 255.4 15 20 246.9 247.3 259.3 268.7 273.7 276.0 278.2 277.6 272.0 263.0 253.3 252.1 20 25 253.9 252.8 266.2 275.5 280.4 281.3 282.6 280.6 273.1 264.2 253.7 251.7 25 30 267.6 268.0 279.4 290.3 294.3 290.5 290.6 287.0 278.9 270.7 259.6 260.9 30 35 285.2 293.0 299.7 309.6 312.1 303.7 299.1 293.4 285.9 279.4 272.5 281.5 35 40 305.6 321.7 326.4 330.2 329.8 317.7 305.6 296.8 290.2 286.3 289.5 305.8 40 45 327.8 343.0 357.2 351.7 344.7 328.8 311.3 298.6 292.1 290.0 305.2 321.3 45 50 347.9 351.0 388.1 374.7 355.6 335.9 318.8 303.3 294.5 293.4 314.5 322.6 50 55 358.7 351.1 413.3 395.3 362.7 341.3 326.8 311.0 297.3 298.9 316.3 317.2 55 60 357.2 353.9 426.4 405.5 366.9 345.2 328.5 314.9 297.0 303.3 313.7 315.9 60 65 349.7 364.7 425.0 403.2 369.6 344.4 319.9 309.3 292.3 302.5 310.9 321.1 65 70 344.6 379.6 414.1 396.8 371.9 338.6 306.8 298.0 286.8 298.5 312.6 328.1 70 75 344.7 390.3 403.4 398.3 375.6 334.1 299.7 290.7 283.6 298.9 322.2 334.9 75 80 346.1 391.0 400.1 411.4 381.7 337.7 303.8 291.9 279.3 308.5 338.9 344.8 80 85 345.0 384.0 404.3 429.0 388.7 349.4 314.6 297.9 270.8 322.8 357.6 359.3 85 90 342.7 377.1 409.8 440.9 393.7 359.8 322.8 302.5 262.5 332.8 370.1 371.4 2009 Dobson+Brewer+Filter Zonal Means Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -90 -85 270.6 243.9 230.3 263.6 266.0 281.3 266.2 264.5 165.7 191.5 211.7 224.0 -85 -80 268.2 245.3 239.3 252.3 270.4 272.4 259.4 247.4 152.7 196.1 208.7 238.0 -80 -75 267.1 253.0 253.9 244.7 270.8 263.0 257.6 225.6 146.6 211.0 205.9 258.9 -75 -70 272.2 269.7 269.1 254.0 262.2 262.1 270.8 215.7 167.2 244.0 208.2 278.8 -70 -65 283.9 288.6 280.7 277.0 252.6 271.5 294.2 228.8 218.4 294.7 220.2 294.9 -65 -60 295.6 297.5 285.6 296.1 255.6 285.7 312.5 263.2 282.7 347.9 244.5 307.8 -60 -55 298.6 291.5 283.0 296.9 274.3 297.5 316.7 304.5 332.5 382.1 276.1 316.4 -55 -50 291.2 278.3 276.1 283.0 294.9 303.4 312.8 335.9 354.7 388.4 303.5 317.5 -50 -45 279.6 268.7 269.5 268.8 301.2 303.3 311.9 349.4 357.2 376.2 317.0 309.7 -45 -40 271.4 264.7 265.5 263.5 291.1 297.8 314.2 346.5 349.5 357.7 315.6 296.8 -40 -35 267.9 262.0 263.1 264.6 275.7 288.3 311.3 331.4 334.2 337.7 305.8 284.8 -35 -30 265.7 258.7 260.3 265.1 265.1 277.2 299.0 309.9 314.8 317.3 297.1 277.0 -30 -25 261.7 256.9 256.6 261.4 260.4 267.6 283.4 289.6 298.5 299.2 293.4 271.9 -25 -20 256.1 256.9 253.4 255.9 257.7 261.7 272.3 276.0 288.4 286.0 290.4 266.9 -20 -15 251.7 255.4 252.5 253.3 255.3 259.2 266.9 270.1 280.2 277.0 281.9 260.9 -15 -10 250.2 251.3 254.5 255.5 255.3 259.4 264.8 269.3 270.8 271.0 269.9 255.6 -10 -5 251.6 247.0 257.5 261.0 259.0 261.6 264.8 271.4 264.2 268.5 262.9 253.4 -5 0 254.4 245.2 259.3 265.5 265.3 265.2 267.0 274.8 264.7 269.2 263.5 255.2 0 5 256.5 244.8 259.0 266.5 271.7 269.0 270.6 277.5 270.3 269.7 265.3 258.8 5 10 256.6 243.7 258.7 265.3 276.3 272.2 273.6 278.2 274.7 268.4 262.0 260.2 10 15 255.5 243.2 261.0 265.2 279.8 275.3 275.6 277.7 275.3 266.9 257.1 257.3 15 20 255.5 246.9 266.8 270.2 284.0 280.6 278.9 278.3 275.4 267.1 258.5 252.6 20 25 259.4 258.2 276.3 282.3 291.3 289.2 285.5 282.2 278.6 268.2 265.9 252.1 25 30 269.7 277.2 291.1 300.6 302.9 300.3 293.9 289.3 284.4 268.9 271.7 261.7 30 35 287.5 302.6 312.5 321.3 317.0 311.3 300.7 296.3 289.3 270.4 272.8 283.1 35 40 312.2 332.9 338.8 340.3 330.4 320.6 305.1 299.6 291.7 275.6 276.5 310.9 40 45 341.9 367.4 364.3 355.3 340.3 328.9 310.5 299.2 295.0 285.8 292.0 337.1 45 50 374.9 405.1 384.4 365.6 347.9 337.5 319.3 299.6 303.1 298.7 316.1 356.6 50 55 407.5 439.2 399.4 371.5 356.9 345.4 328.5 304.2 312.7 308.7 330.0 370.3 55 60 432.1 462.0 411.9 376.0 368.1 350.0 331.9 310.9 315.1 310.5 318.7 380.3 60 65 441.6 472.3 422.9 384.0 378.7 350.0 328.4 313.5 305.8 304.1 290.7 384.3 65 70 436.5 476.1 432.1 397.8 386.6 347.2 322.4 309.3 291.4 294.9 270.6 379.3 70 75 427.9 479.5 439.1 411.9 395.4 344.2 316.2 301.3 281.0 288.2 274.9 369.1 75 80 429.9 483.2 444.8 416.5 410.8 341.8 306.1 293.2 275.2 284.2 299.2 363.0 80 85 444.9 484.5 449.6 409.0 431.7 339.7 291.4 286.3 270.0 280.2 326.6 366.0 85 90 460.0 483.7 452.7 399.2 447.3 338.0 279.4 281.9 265.4 277.0 343.1 372.1