YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | 344.00 | 344.50 | 333.50 | 316.00 | 495.50 | 528.50 | 549.50 | 545.50 | 520.50 | 507.50 | 474.50 | 419.50 | 5379.00 | |||||||||||||
1956 | 360.50 | 325.50 | 298.00 | g | 415.00 | 460.50 | 474.50 | 548.50 | 535.27 | a | 519.50 | 505.00 | 438.50 | 424.50 | 5007.27 | |||||||||||
1957 | 387.00 | 339.50 | 336.00 | 387.50 | 491.50 | 500.50 | 542.50 | 544.00 | 538.00 | 545.00 | 463.00 | 407.50 | 5482.00 | |||||||||||||
1958 | 370.00 | 339.50 | 441.50 | 462.00 | 461.00 | 482.00 | 488.00 | 518.50 | 523.00 | 502.00 | 429.00 | 419.50 | 5436.00 | |||||||||||||
1959 | 367.50 | 304.50 | 410.50 | 426.00 | 383.00 | 429.50 | 534.00 | 522.50 | 520.00 | 478.00 | 429.00 | 417.00 | 5221.50 | |||||||||||||
1960 | 381.00 | 379.00 | 453.50 | 467.00 | 490.00 | 513.00 | 525.50 | 526.50 | 477.50 | 535.00 | 479.50 | 350.50 | 5578.00 | |||||||||||||
1961 | 382.00 | 346.50 | 389.50 | 439.50 | 497.50 | 500.00 | 501.00 | 522.00 | 477.50 | 467.00 | 370.00 | 374.50 | 5267.00 | |||||||||||||
1962 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
1963 | 365.00 | 325.50 | 386.50 | 420.00 | 426.50 | 490.00 | 501.50 | 499.00 | 485.50 | 502.50 | 434.50 | 427.50 | 5264.00 | |||||||||||||
1964 | 376.50 | 361.00 | 392.00 | 379.00 | 495.50 | 491.50 | 494.00 | 494.00 | 474.00 | 476.00 | 431.50 | 305.50 | 5170.50 | |||||||||||||
1965 | 289.00 | 286.50 | 391.50 | 358.50 | 412.00 | 419.00 | 487.00 | 465.50 | 451.00 | 462.00 | 394.50 | 345.00 | 4761.50 | |||||||||||||
1966 | 330.50 | 298.50 | 346.00 | 379.50 | 416.00 | 455.00 | 494.00 | 489.00 | 439.00 | 432.50 | 358.50 | 304.00 | 4742.50 | |||||||||||||
1967 | 286.50 | 242.50 | 256.50 | 285.50 | 363.50 | 431.50 | 410.50 | 443.50 | 414.00 | 396.00 | 353.00 | 279.00 | 4162.00 | |||||||||||||
1968 | 232.50 | 209.50 | 260.00 | 237.00 | 360.00 | 382.00 | 361.00 | 385.50 | 418.00 | 411.00 | 358.50 | 270.50 | 3885.50 | |||||||||||||
1969 | 7.00 | z | 0.00 | z | 411.50 | 481.00 | 514.00 | 533.50 | 533.50 | 533.50 | 496.50 | 529.50 | 454.00 | 423.00 | 4910.00 | |||||||||||
1970 | 403.00 | 312.50 | 346.50 | 413.50 | 485.50 | 496.50 | 508.00 | 533.00 | 517.00 | 494.00 | 468.50 | 422.00 | 5400.00 | |||||||||||||
1971 | 392.50 | 314.00 | 326.50 | 374.50 | 432.00 | 490.50 | 513.00 | 482.00 | 493.00 | 460.50 | 371.50 | 285.50 | 4935.50 | |||||||||||||
1972 | 240.00 | 263.50 | 387.00 | 372.50 | 502.00 | 491.50 | 454.50 | 0.00 | z | 468.00 | 381.50 | 439.50 | 429.00 | 4429.00 | ||||||||||||
1973 | 373.00 | 337.00 | 414.00 | 410.50 | 506.00 | 475.50 | 502.00 | 487.00 | 471.50 | 477.00 | 440.00 | 369.50 | 5263.00 | |||||||||||||
1974 | 326.00 | 319.50 | 368.00 | 379.50 | 429.50 | 424.00 | 408.50 | 416.50 | 411.00 | 435.00 | 348.50 | 331.00 | 4597.00 | |||||||||||||
1975 | 262.50 | 266.50 | 315.00 | 348.00 | 398.50 | 398.00 | 375.50 | 378.50 | 368.00 | 340.00 | 305.00 | 258.00 | 4013.50 | |||||||||||||
1976 | 233.50 | 231.50 | 301.00 | 317.00 | 346.50 | 397.00 | 420.50 | 413.50 | 404.00 | 0.00 | z | 0.00 | z | 0.00 | z | 3064.50 | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 335.12 | 307.35 | 363.33 | 384.24 | 446.02 | 466.83 | 483.45 | 486.74 | 470.79 | 466.85 | 412.05 | 363.12 | 4974.03 | |||||||||||||
S.D. | 56.98 | 44.95 | 54.61 | 60.71 | 53.92 | 44.66 | 56.57 | 52.98 | 46.98 | 53.86 | 50.33 | 61.46 | 532.93 | |||||||||||||
SKEW | -0.73 | -0.63 | -0.38 | -0.58 | -0.42 | -0.44 | -0.85 | -0.81 | -0.51 | -0.69 | -0.47 | -0.38 | -0.89 | |||||||||||||
MAX | 403.00 | 379.00 | 453.50 | 481.00 | 514.00 | 533.50 | 549.50 | 545.50 | 538.00 | 545.00 | 479.50 | 429.00 | 5578.00 | |||||||||||||
MIN | 232.50 | 209.50 | 256.50 | 237.00 | 346.50 | 382.00 | 361.00 | 378.50 | 368.00 | 340.00 | 305.00 | 258.00 | 3885.50 | |||||||||||||
NO YRS | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 20 | 21 | 20 | 20 | 20 | 17 |