| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1971 | 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 | 1047.50 | 1380.50 | 2428.00 | |||
| 1972 | 1305.50 | 1030.00 | 827.70 | a | 825.00 | d | 460.00 | 187.50 | 58.00 | 63.50 | 347.00 | 618.00 | 998.50 | 1363.50 | 8084.20 | |||||||||||
| 1973 | 1354.91 | b | 1020.00 | 1039.03 | b | 787.50 | b | 0.00 | z | 204.00 | 66.00 | 67.00 | 355.50 | 610.00 | 946.00 | 1117.50 | 7567.45 | |||||||||
| 1974 | 1287.50 | 1069.50 | 856.63 | a | 751.03 | a | 484.50 | 107.00 | 36.50 | 78.50 | 240.00 | 614.00 | 921.00 | e | 1235.50 | 7681.67 | ||||||||||
| 1975 | 1271.52 | a | 1052.00 | 1032.50 | 933.50 | 614.83 | a | 307.00 | 21.50 | 108.00 | 241.00 | 636.50 | 995.50 | 1040.50 | 8254.35 | |||||||||||
| 1976 | 1133.50 | 1005.00 | 1060.31 | d | 737.14 | b | 365.59 | b | 187.00 | h | 7.00 | h | 140.50 | 227.50 | i | 630.33 | d | 810.52 | a | 1132.69 | e | 7015.59 | ||||
| 1977 | 1238.85 | d | 655.50 | j | 705.00 | k | 482.00 | h | 670.78 | b | 91.15 | d | 34.44 | d | 68.41 | b | 270.54 | b | 553.19 | b | 898.33 | c | 851.50 | f | 3825.70 | |
| 1978 | 615.50 | m | 940.80 | c | 602.00 | g | 538.50 | g | 543.02 | a | 226.55 | a | 40.54 | e | 98.50 | g | 345.58 | d | 376.50 | f | 694.00 | j | 915.00 | j | 2096.48 | |
| 1979 | 940.00 | k | 770.50 | g | 422.50 | q | 525.50 | h | 174.50 | p | 171.00 | i | 9.50 | h | 59.50 | m | 157.78 | c | 498.87 | d | 0.00 | z | 0.00 | z | 656.65 | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1265.30 | 1019.55 | 963.24 | 806.84 | 523.12 | 187.20 | 42.83 | 87.65 | 279.63 | 594.41 | 945.34 | 1211.70 | 8006.74 | |||||||||||||
| S.D. | 75.17 | 44.88 | 111.47 | 78.61 | 110.37 | 79.80 | 16.36 | 30.56 | 73.75 | 50.12 | 78.27 | 138.94 | 294.09 | |||||||||||||
| SKEW | -0.78 | -0.80 | -0.41 | 0.87 | -0.04 | 0.17 | 0.27 | 0.96 | -0.40 | -1.14 | -0.46 | 0.16 | -0.44 | |||||||||||||
| MAX | 1354.91 | 1069.50 | 1060.31 | 933.50 | 670.78 | 307.00 | 66.00 | 140.50 | 355.50 | 636.50 | 1047.50 | 1380.50 | 8254.35 | |||||||||||||
| MIN | 1133.50 | 940.80 | 827.70 | 737.14 | 365.59 | 91.15 | 21.50 | 63.50 | 157.78 | 498.87 | 810.52 | 1040.50 | 7681.67 | |||||||||||||
| NO YRS | 6 | 6 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 3 | |||||||||||||