| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1951 | 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 | 11.97 | 14.59 | 26.56 | |||
| 1952 | 13.72 | 10.24 | 7.08 | 3.19 | 2.44 | 2.16 | 0.00 | 0.00 | 0.67 | 0.45 | 3.62 | 15.72 | 59.29 | |||||||||||||
| 1953 | 26.00 | 7.14 | 10.50 | 5.48 | 9.06 | 2.50 | 0.00 | 2.45 | 0.43 | 7.27 | 17.00 | 9.50 | 97.33 | |||||||||||||
| 1954 | 20.82 | 7.65 | 5.43 | 3.91 | 0.52 | 3.71 | 0.00 | z | 0.00 | z | 1.78 | 0.00 | z | 7.17 | 16.31 | 67.30 | ||||||||||
| 1955 | 8.27 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.15 | d | 6.93 | 11.87 | 20.85 | c | 48.07 | ||||
| 1956 | 20.45 | 13.13 | 5.11 | 0.23 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 38.92 | |||||
| 1957 | 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 | |
| 1958 | 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 | 7.69 | 7.69 | ||
| 1959 | 17.19 | 12.59 | 8.27 | 1.30 | 2.37 | 0.72 | 0.07 | 0.03 | 4.61 | 4.21 | 1.44 | 5.91 | 58.71 | |||||||||||||
| 1960 | 8.62 | 11.09 | 17.47 | 7.94 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 5.51 | 18.24 | 7.56 | 76.43 | ||||||||
| 1961 | 8.95 | 17.15 | 20.42 | 0.00 | z | 9.24 | 0.30 | 0.00 | 0.99 | 2.76 | 9.89 | 21.24 | 11.75 | 102.69 | ||||||||||||
| 1962 | 2.88 | 12.74 | 11.44 | 2.98 | S | 1.76 | z | 0.00 | z | 0.00 | 3.75 | 2.10 | 0.00 | z | 12.79 | 8.77 | 57.45 | |||||||||
| 1963 | 4.94 | 13.79 | 12.53 | 17.86 | 16.16 | 0.63 | 0.00 | 0.00 | 1.74 | 9.28 | 16.35 | 7.02 | 100.30 | |||||||||||||
| 1964 | 20.37 | 0.89 | 6.28 | e | 5.04 | 4.13 | 0.00 | z | 0.51 | 0.00 | 0.00 | z | 1.69 | 21.19 | 0.00 | z | 60.10 | |||||||||
| 1965 | 2.43 | v | 4.24 | 0.00 | z | 0.00 | z | 0.00 | z | 0.37 | 0.05 | 0.93 | 0.00 | 2.58 | 15.24 | 15.03 | 38.44 | |||||||||
| 1966 | 19.00 | 5.50 | 14.33 | 2.94 | 0.33 | 1.97 | 0.43 | 0.75 | 3.95 | 2.64 | 21.40 | 11.26 | 84.50 | |||||||||||||
| 1967 | 16.57 | 3.66 | 14.24 | 11.20 | 2.76 | 0.17 | 0.00 | 0.00 | 1.64 | 6.97 | 6.07 | 6.97 | 70.25 | |||||||||||||
| 1968 | 14.80 | 10.14 | 8.35 | 1.06 | 3.89 | 0.72 | 0.45 | 6.05 | 1.19 | 6.30 | 13.76 | 16.94 | 83.65 | |||||||||||||
| 1969 | 18.56 | 12.90 | 3.17 | 6.94 | 2.71 | 0.94 | 0.00 | 0.05 | 4.45 | 7.33 | 5.39 | 17.01 | 79.45 | |||||||||||||
| 1970 | 23.22 | 4.19 | 6.21 | 4.21 | 3.54 | 1.66 | 0.00 | 0.02 | 0.62 | 4.64 | 17.32 | 17.45 | 83.08 | |||||||||||||
| 1971 | 15.28 | 6.85 | 15.17 | 6.12 | 1.66 | 4.24 | 0.53 | 1.54 | 4.67 | 2.48 | 12.01 | 14.76 | 85.31 | |||||||||||||
| 1972 | 21.00 | 11.76 | 18.81 | 7.80 | 1.65 | 1.09 | 0.14 | 0.47 | 1.07 | 2.39 | 7.21 | 13.58 | 86.97 | |||||||||||||
| 1973 | 12.22 | 6.86 | 10.49 | 1.77 | 2.59 | 1.06 | 0.00 | 0.25 | 5.06 | 6.89 | 34.45 | 18.13 | 99.77 | |||||||||||||
| 1974 | 14.01 | 12.22 | 13.11 | 4.56 | 0.59 | 1.15 | 0.58 | 0.05 | 0.00 | 2.12 | 4.45 | 14.51 | 67.35 | |||||||||||||
| 1975 | 9.69 | 16.56 | 16.36 | 4.51 | 2.93 | 0.49 | 0.15 | 1.53 | 0.03 | 12.90 | 8.82 | 10.34 | 84.31 | |||||||||||||
| 1976 | 5.83 | 10.63 | 5.89 | 4.89 | 1.00 | 0.39 | 0.95 | 3.07 | 0.38 | 1.06 | 3.26 | 1.30 | 38.65 | |||||||||||||
| 1977 | 3.30 | 5.46 | 8.36 | 1.53 | 4.07 | 0.28 | 0.38 | 1.25 | 8.69 | 7.10 | 15.15 | 18.66 | 74.23 | |||||||||||||
| 1978 | 13.35 | 13.62 | 4.49 | 10.47 | 2.68 | 1.55 | 0.13 | 3.44 | 5.91 | 0.16 | 4.68 | 5.62 | 66.10 | |||||||||||||
| 1979 | 7.87 | 15.06 | 4.13 | 5.68 | 7.69 | 0.61 | 1.09 | 0.20 | 2.33 | 9.98 | 11.72 | 11.87 | 78.23 | |||||||||||||
| 1980 | 5.96 | 9.08 | 11.10 | 6.29 | 1.96 | 2.06 | 0.02 | 0.00 | 0.52 | 3.67 | 7.72 | 12.32 | 60.70 | |||||||||||||
| 1981 | 9.35 | 7.69 | 8.14 | a | 3.45 | 4.76 | 1.76 | 0.02 | 0.10 | 3.60 | 14.42 | 16.40 | 21.62 | 91.31 | ||||||||||||
| 1982 | 9.57 | 7.88 | 12.13 | 10.83 | 0.05 | 3.07 | 0.18 | 0.07 | 1.07 | 8.82 | 7.97 | 14.17 | 75.81 | |||||||||||||
| 1983 | 9.48 | 15.24 | 14.91 | 5.80 | 2.88 | 1.05 | 2.10 | 3.38 | 0.66 | 2.65 | 12.63 | 18.87 | 89.65 | |||||||||||||
| 1984 | 3.17 | 8.50 | 7.09 | 4.56 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 8.08 | 22.52 | 5.11 | 59.03 | ||||||||
| 1985 | 0.71 | 7.30 | 8.25 | 1.45 | 1.98 | 4.62 | 0.41 | 0.21 | 1.99 | 0.00 | z | 0.00 | z | 0.00 | z | 26.92 | ||||||||||
| 1986 | 15.23 | 22.18 | 9.97 | 3.89 | 6.70 | 0.00 | z | 0.00 | z | 0.00 | 6.71 | 0.00 | z | 0.00 | z | 0.00 | z | 64.68 | ||||||||
| 1987 | 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 | 19.96 | 19.96 | ||
| 1988 | 12.40 | 0.00 | z | 0.00 | z | 5.44 | 4.63 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.57 | 19.53 | 8.37 | 50.94 | |||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 12.51 | 10.12 | 10.30 | 5.27 | 3.75 | 1.51 | 0.30 | 1.09 | 2.37 | 5.48 | 12.83 | 12.71 | 77.95 | |||||||||||||
| S.D. | 6.51 | 4.58 | 4.56 | 3.63 | 3.43 | 1.24 | 0.47 | 1.55 | 2.28 | 3.75 | 7.19 | 5.17 | 15.18 | |||||||||||||
| SKEW | 0.12 | 0.33 | 0.45 | 1.49 | 1.97 | 1.13 | 2.40 | 1.61 | 1.05 | 0.50 | 0.70 | -0.19 | -0.67 | |||||||||||||
| MAX | 26.00 | 22.18 | 20.42 | 17.86 | 16.16 | 4.62 | 2.10 | 6.05 | 8.69 | 14.42 | 34.45 | 21.62 | 100.30 | |||||||||||||
| MIN | 0.71 | 0.89 | 3.17 | 0.23 | 0.05 | 0.17 | 0.00 | 0.00 | 0.00 | 0.16 | 1.44 | 1.30 | 38.65 | |||||||||||||
| NO YRS | 33 | 32 | 31 | 31 | 28 | 26 | 27 | 28 | 29 | 29 | 32 | 33 | 22 | |||||||||||||