| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1939 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | 0.72 | 0.77 | 0.00 | 9.22 | 10.71 | ||||||
| 1940 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.13 | 0.00 | 2.15 | 1.26 | 0.00 | z | 0.00 | z | 3.54 | |||||
| 1941 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 1.65 | 0.33 | 0.45 | 0.86 | 1.07 | 2.00 | 7.71 | 14.07 | ||||||||
| 1942 | 2.70 | 3.01 | 0.25 | 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 | 5.96 | ||||
| 1943 | 0.00 | z | 0.00 | z | 0.00 | z | 1.35 | 0.25 | 1.03 | 1.00 | 0.02 | 0.00 | 2.68 | 0.91 | 0.79 | 8.03 | ||||||||||
| 1944 | 2.39 | w | 2.21 | 1.60 | 1.68 | 0.27 | 1.63 | 1.17 | 0.12 | 0.04 | 1.09 | 3.52 | 1.56 | 14.89 | ||||||||||||
| 1945 | 1.32 | t | 4.09 | 1.76 | 0.81 | 4.33 | 0.04 | 0.15 | 0.18 | 0.04 | 1.75 | 4.60 | 7.07 | 24.82 | ||||||||||||
| 1946 | 3.44 | 1.82 | s | 1.34 | 0.29 | 0.97 | 0.77 | 0.28 | 0.00 | z | 0.10 | 1.79 | 5.18 | 1.48 | 15.64 | |||||||||||
| 1947 | 1.51 | 1.27 | 2.16 | 0.75 | 0.70 | 1.69 | 0.38 | 0.10 | 0.05 | 2.77 | 1.15 | 1.05 | 13.58 | |||||||||||||
| 1948 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.60 | 2.00 | 0.88 | 0.54 | 2.94 | 4.14 | 11.10 | |||||||
| 1949 | 0.37 | 2.76 | 1.48 | 0.26 | 1.20 | 0.24 | e | 0.04 | e | 0.00 | 0.89 | 0.29 | b | 1.24 | b | 1.46 | 10.23 | |||||||||
| 1950 | 5.51 | a | 1.98 | 3.29 | 0.68 | 0.37 | 0.78 | 0.00 | 0.48 | 0.84 | 8.74 | 2.93 | 4.70 | p | 25.60 | |||||||||||
| 1951 | 4.75 | 4.03 | 0.79 | 1.22 | 0.68 | 0.00 | 0.00 | 0.00 | 0.00 | 2.99 | 1.81 | S | 7.65 | 23.92 | ||||||||||||
| 1952 | 4.94 | 3.09 | 2.20 | 0.32 | 1.08 | 1.27 | 0.55 | 0.72 | 0.14 | 0.42 | 1.80 | 9.38 | 25.91 | |||||||||||||
| 1953 | 8.21 | 1.94 | 1.99 | 0.58 | 2.76 | 0.77 | 0.00 | 0.75 | 0.25 | 1.37 | 5.30 | 2.22 | 26.14 | |||||||||||||
| 1954 | 7.64 | 2.22 | 1.32 | 1.36 | 0.00 | 1.38 | 0.00 | 0.86 | 0.39 | 0.42 | 1.01 | 2.13 | a | 18.73 | ||||||||||||
| 1955 | 2.18 | f | 0.48 | b | 0.67 | 0.69 | 0.21 | 0.17 | 0.06 | 0.21 | 0.67 | 1.55 | 5.73 | 10.90 | a | 21.34 | ||||||||||
| 1956 | 7.20 | 5.22 | 0.55 | 0.15 | 2.03 | 0.81 | 0.81 | 0.10 | 0.36 | 4.04 | 0.17 | 2.21 | 23.65 | |||||||||||||
| 1957 | 2.91 | a | 3.60 | 5.29 | 0.53 | 1.17 | 0.08 | 0.00 | 0.15 | 1.34 | 3.23 | 2.71 | 5.44 | 26.45 | ||||||||||||
| 1958 | 6.01 | 6.18 | 1.83 | 0.96 | 0.37 | 3.79 | 0.81 | 0.75 | 0.17 | 0.63 | 1.74 | 1.80 | 25.04 | |||||||||||||
| 1959 | 4.88 | 2.26 | 1.43 | 0.15 | 0.93 | 0.34 | 0.00 | 0.72 | 0.70 | 0.34 | 0.00 | 1.43 | 13.18 | |||||||||||||
| 1960 | 2.42 | 6.89 | 3.75 | 0.80 | 1.24 | 0.17 | 0.47 | 0.02 | 0.00 | 0.43 | 5.75 | 2.94 | 24.88 | |||||||||||||
| 1961 | 1.43 | 3.75 | 2.78 | 0.71 | 0.98 | 0.33 | 0.05 | 0.62 | 1.22 | 1.97 | 3.63 | 3.86 | 21.33 | |||||||||||||
| 1962 | 1.45 | 2.17 | c | 1.79 | 0.82 | 1.28 | 0.13 | 0.40 | 1.00 | 0.86 | 7.41 | 4.50 | 4.28 | 26.09 | ||||||||||||
| 1963 | 1.17 | 4.66 | 1.96 | 2.24 | 1.29 | 0.45 | 0.13 | 0.02 | 0.40 | 2.03 | 5.05 | 0.91 | 20.31 | |||||||||||||
| 1964 | 4.58 | 0.34 | 1.40 | 0.45 | 0.47 | 1.25 | 0.11 | 0.06 | 0.06 | 0.38 | 2.56 | 13.74 | 25.40 | |||||||||||||
| 1965 | 3.96 | 1.08 | 1.07 | 2.56 | 0.52 | 0.27 | 0.82 | 1.76 | 0.00 | 0.18 | 3.05 | 2.51 | 17.78 | |||||||||||||
| 1966 | 7.19 | 0.79 | 1.25 | 0.43 | 0.50 | 0.66 | 0.22 | 0.09 | 0.13 | 0.32 | 3.96 | 3.85 | 19.39 | |||||||||||||
| 1967 | 5.84 | 0.48 | 2.17 | 1.59 | 0.50 | 1.22 | 0.00 | 0.04 | 0.38 | 2.04 | 1.09 | 4.44 | 19.79 | |||||||||||||
| 1968 | 3.07 | 2.73 | 1.58 | 0.08 | 0.67 | 0.04 | 0.00 | 1.08 | 0.39 | 1.26 | 2.42 | 5.75 | 19.07 | |||||||||||||
| 1969 | 6.30 | 1.79 | 0.38 | 1.01 | 1.86 | 0.98 | 0.00 | z | 0.00 | 0.24 | 1.41 | 0.74 | 7.08 | 21.79 | ||||||||||||
| 1970 | 9.07 | 1.08 | 2.24 | 0.45 | 0.09 | 1.48 | 0.11 | 0.00 | 0.08 | 2.17 | 7.16 | 5.36 | 29.29 | |||||||||||||
| 1971 | 2.82 | 1.15 | 4.71 | 1.23 | 1.78 | 0.44 | 0.27 | 0.08 | 1.01 | 1.11 | 5.05 | 3.48 | 23.13 | |||||||||||||
| 1972 | 5.26 | 3.15 | 3.28 | 1.69 | 0.88 | 1.04 | 0.00 | 0.43 | 0.46 | 0.81 | 1.62 | 4.57 | 23.19 | |||||||||||||
| 1973 | 3.27 | 1.37 | 1.33 | 0.58 | 0.63 | 0.02 | 0.56 | 0.00 | 1.03 | 3.07 | 6.83 | 4.38 | 23.07 | |||||||||||||
| 1974 | 8.55 | 2.33 | 6.78 | 0.87 | 0.49 | 0.05 | 0.18 | 0.00 | 0.00 | 0.46 | 0.86 | 2.68 | 23.25 | |||||||||||||
| 1975 | 2.88 | 4.52 | 5.12 | 1.30 | 0.30 | 1.76 | 0.30 | 0.16 | 0.55 | 2.77 | 3.03 | 2.54 | 25.23 | |||||||||||||
| 1976 | 1.28 | 3.92 | 0.80 | 0.86 | 0.15 | 0.13 | 0.32 | 3.51 | 0.82 | 0.00 | 0.84 | 0.26 | 12.89 | |||||||||||||
| 1977 | 1.36 | 1.25 | 1.30 | 0.42 | 2.10 | 1.00 | 0.19 | 0.52 | 2.43 | 1.08 | 4.34 | 7.10 | 23.09 | |||||||||||||
| 1978 | 4.01 | 2.94 | 2.76 | 1.93 | 0.92 | 1.43 | 0.54 | 1.29 | 2.55 | 0.04 | 0.00 | z | 1.10 | 19.51 | ||||||||||||
| 1979 | 3.17 | 2.85 | 1.33 | 2.56 | 1.89 | 0.10 | 0.00 | 0.78 | 0.31 | 4.28 | 4.30 | 3.29 | 24.86 | |||||||||||||
| 1980 | 5.42 | 3.39 | 1.58 | 1.80 | 0.68 | 1.18 | 0.10 | 0.00 | 0.47 | 0.52 | b | 1.87 | 4.59 | 21.60 | ||||||||||||
| 1981 | 2.13 | 2.48 | 0.98 | 1.35 | 1.34 | 0.32 | 0.03 | 0.00 | 0.58 | 2.50 | 9.61 | 10.44 | 31.76 | |||||||||||||
| 1982 | 2.50 | b | 6.11 | 2.43 | 1.07 | 0.14 | 1.18 | 0.35 | 0.41 | 1.04 | 2.54 | 3.81 | 8.46 | 30.04 | ||||||||||||
| 1983 | 1.96 | 6.80 | 4.92 | 0.93 | 0.43 | 0.54 | 0.00 | 3.58 | 0.83 | 0.36 | 5.72 | 0.00 | z | 26.07 | ||||||||||||
| 1984 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.08 | 0.13 | 2.23 | 0.11 | 1.45 | 7.12 | 1.19 | b | 12.31 | |||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 4.09 | 2.88 | 2.14 | 0.99 | 0.96 | 0.78 | 0.27 | 0.57 | 0.59 | 1.74 | 3.25 | 4.44 | 22.33 | |||||||||||||
| S.D. | 2.32 | 1.73 | 1.48 | 0.64 | 0.84 | 0.73 | 0.30 | 0.86 | 0.61 | 1.76 | 2.23 | 3.21 | 5.04 | |||||||||||||
| SKEW | 0.48 | 0.70 | 1.38 | 0.82 | 1.93 | 1.68 | 1.25 | 2.19 | 1.62 | 2.19 | 0.63 | 0.94 | -0.61 | |||||||||||||
| MAX | 9.07 | 6.89 | 6.78 | 2.56 | 4.33 | 3.79 | 1.17 | 3.58 | 2.55 | 8.74 | 9.61 | 13.74 | 31.76 | |||||||||||||
| MIN | 0.37 | 0.34 | 0.25 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.26 | 10.23 | |||||||||||||
| NO YRS | 37 | 39 | 40 | 40 | 40 | 42 | 43 | 44 | 45 | 45 | 43 | 42 | 31 | |||||||||||||