| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1960 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 276.50 | 633.00 | 744.00 | 714.50 | 632.00 | 383.50 | 89.00 | 0.00 | z | 3472.50 | ||||||||
| 1961 | 1.50 | 13.50 | 5.00 | 82.00 | 231.50 | 761.00 | 866.00 | 728.00 | 185.50 | s | 236.50 | i | 107.07 | a | 0.00 | 2795.57 | ||||||||||
| 1962 | 0.00 | 0.00 | d | 6.00 | 56.00 | n | 0.00 | z | 518.04 | b | 694.83 | b | 700.08 | a | 495.50 | 280.55 | a | 53.00 | 6.41 | b | 2754.41 | |||||
| 1963 | 0.00 | 35.50 | 8.00 | 24.83 | a | 318.50 | 355.50 | 706.28 | a | 676.12 | b | 541.15 | d | 321.48 | d | 50.69 | a | 1.00 | 3039.06 | |||||||
| 1964 | 0.00 | a | 0.00 | a | 6.00 | 79.50 | 274.87 | a | 466.50 | 784.30 | a | 721.78 | a | 409.62 | d | 348.48 | b | 12.00 | 7.48 | b | 3110.53 | |||||
| 1965 | 1.60 | b | 3.00 | 10.85 | a | 106.50 | 176.70 | a | 401.25 | b | 687.00 | 652.07 | b | 308.00 | 302.00 | 39.50 | 5.00 | 2693.47 | ||||||||
| 1966 | 0.00 | 0.00 | 61.00 | 156.50 | 437.00 | 545.50 | 753.50 | 763.50 | 471.00 | 209.00 | 32.50 | 0.00 | 3429.50 | |||||||||||||
| 1967 | 4.50 | 0.50 | 20.50 | 0.00 | 307.62 | e | 434.48 | a | 788.00 | 772.93 | a | 480.52 | a | 257.30 | a | 68.57 | b | 0.00 | z | 3134.92 | ||||||
| 1968 | 0.00 | v | 23.00 | 26.50 | 55.38 | d | 245.50 | 580.56 | c | 792.05 | a | 571.50 | 452.00 | 212.00 | 15.50 | 0.00 | a | 2973.99 | ||||||||
| 1969 | 10.50 | g | 0.00 | v | 8.00 | v | 15.00 | w | 403.52 | a | 460.50 | 775.00 | 811.00 | 537.50 | 57.50 | 1.50 | 0.00 | 3046.52 | ||||||||
| 1970 | 3.58 | e | 1.50 | 8.50 | 10.00 | l | 299.87 | e | 382.00 | g | 780.37 | e | 833.79 | b | 433.00 | 152.50 | 13.20 | e | 0.00 | c | 2526.30 | |||||
| 1971 | 17.50 | 8.50 | 47.50 | 93.50 | 162.00 | 577.00 | 862.00 | 819.90 | b | 430.50 | 133.62 | b | 14.46 | b | 0.00 | g | 3166.48 | |||||||||
| 1972 | 0.00 | a | 10.88 | a | 140.57 | b | 99.44 | c | 323.29 | c | 588.89 | c | 834.23 | c | 710.33 | b | 365.89 | b | 79.71 | c | 0.00 | d | 0.00 | c | 3153.23 | |
| 1973 | 0.00 | i | 0.00 | c | 0.00 | e | 89.00 | f | 408.68 | a | 587.88 | d | 772.62 | e | 710.23 | c | 451.67 | c | 149.00 | f | 11.50 | m | 8.50 | 2939.58 | ||
| 1974 | 0.00 | a | 0.00 | 20.50 | h | 53.33 | c | 304.50 | f | 658.85 | d | 770.02 | c | 662.62 | c | 394.50 | i | 105.00 | g | 18.89 | c | 0.00 | z | 2163.71 | ||
| 1975 | 0.00 | z | 0.00 | z | 0.00 | p | 5.77 | d | 158.50 | k | 0.00 | z | 0.00 | z | 210.50 | u | 549.44 | c | 155.00 | d | 30.00 | h | 0.00 | z | 710.21 | |
| 1976 | 14.00 | o | 2.42 | e | 24.50 | h | 68.00 | 415.06 | d | 517.00 | 771.79 | b | 153.00 | w | 474.44 | c | 161.00 | f | 64.62 | d | 0.00 | c | 2313.33 | |||
| 1977 | 2.50 | 12.38 | b | 21.91 | b | 147.32 | b | 164.00 | 645.50 | 792.64 | b | 762.37 | d | 534.64 | b | 276.23 | c | 76.55 | a | 26.83 | e | 3462.88 | ||||
| 1978 | 0.00 | b | 0.00 | h | 50.50 | f | 23.00 | r | 236.52 | d | 493.20 | e | 572.50 | g | 694.83 | b | 372.41 | a | 339.28 | d | 25.71 | b | 0.00 | 2161.95 | ||
| 1979 | 0.00 | d | 1.75 | d | 10.00 | 100.86 | a | 364.85 | e | 552.60 | e | 513.50 | k | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 5.17 | a | 1035.22 | ||
| 1980 | 0.00 | j | 2.50 | f | 2.50 | h | 112.00 | g | 162.00 | f | 131.00 | u | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 2.23 | 7.06 | 26.60 | 76.64 | 296.82 | 543.18 | 774.98 | 723.86 | 467.02 | 233.88 | 40.16 | 4.03 | 3148.11 | |||||||||||||
| S.D. | 4.65 | 10.13 | 37.09 | 46.69 | 88.43 | 99.94 | 50.37 | 66.45 | 79.38 | 100.83 | 32.10 | 7.06 | 282.24 | |||||||||||||
| SKEW | 2.77 | 1.66 | 2.29 | -0.04 | 0.02 | 0.12 | 0.04 | -0.26 | -0.01 | -0.29 | 0.58 | 2.40 | -0.41 | |||||||||||||
| MAX | 17.50 | 35.50 | 140.57 | 156.50 | 437.00 | 761.00 | 866.00 | 833.79 | 632.00 | 383.50 | 107.07 | 26.83 | 3462.88 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 0.00 | 162.00 | 355.50 | 687.00 | 571.50 | 308.00 | 57.50 | 0.00 | 0.00 | 2693.47 | |||||||||||||
| NO YRS | 14 | 16 | 14 | 14 | 17 | 18 | 17 | 17 | 17 | 15 | 17 | 15 | 6 | |||||||||||||