| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1969 | 0.00 | z | 0.00 | z | 0.00 | z | 0.27 | i | 1.05 | 1.24 | 0.93 | 0.00 | 0.74 | 0.77 | 0.46 | 4.14 | 9.33 | |||||||||
| 1970 | 6.87 | 1.89 | 0.61 | 0.45 | 0.24 | 0.24 | 0.00 | 0.00 | 0.09 | 1.38 | 4.28 | 2.58 | 18.63 | |||||||||||||
| 1971 | 3.46 | 1.33 | 2.03 | 0.85 | 0.89 | 0.40 | 0.04 | 0.16 | 0.98 | 0.67 | 2.61 | 2.74 | 16.16 | |||||||||||||
| 1972 | 6.62 | 1.29 | 2.66 | 0.96 | 0.74 | 1.45 | 0.20 | 0.96 | 0.91 | 0.46 | 1.06 | 4.09 | 21.40 | |||||||||||||
| 1973 | 1.58 | 0.81 | 0.22 | 0.53 | 0.47 | 0.14 | 0.00 | 0.10 | 1.38 | 2.02 | 5.72 | 5.59 | 18.56 | |||||||||||||
| 1974 | 3.94 | 2.22 | 3.15 | 1.02 | 0.11 | 0.04 | 0.23 | 0.00 | 0.00 | 0.69 | 1.37 | 4.01 | 16.78 | |||||||||||||
| 1975 | 5.10 | 3.84 | 3.04 | 0.46 | 0.23 | 1.12 | 0.31 | 0.57 | 0.00 | 2.22 | 3.32 | 3.08 | 23.29 | |||||||||||||
| 1976 | 3.01 | 2.65 | 1.43 | 0.98 | 0.34 | 0.00 | a | 0.60 | 1.63 | 0.31 | 0.75 | 0.76 | 0.27 | 12.73 | ||||||||||||
| 1977 | 0.37 | 0.54 | 0.95 | 0.23 | 0.57 | 0.20 | 0.04 | 0.50 | 0.90 | 0.67 | 4.77 | 5.82 | 15.56 | |||||||||||||
| 1978 | 4.30 | 2.21 | 0.70 | 1.22 | 0.73 | 0.19 | 0.34 | 1.34 | 0.66 | 0.05 | 1.71 | 1.03 | 14.48 | |||||||||||||
| 1979 | 2.85 | 3.47 | 1.27 | 2.08 | 0.09 | 0.29 | 0.03 | 1.04 | 0.55 | 2.92 | 2.57 | 1.50 | 18.66 | |||||||||||||
| 1980 | 5.24 | 2.21 | 1.13 | 1.38 | 0.66 | 1.36 | 0.02 | 0.10 | 0.57 | 0.62 | 2.67 | 5.19 | 21.15 | |||||||||||||
| 1981 | 1.52 | 2.95 | 0.58 | 0.50 | 1.98 | 1.94 | 0.17 | 0.07 | 1.37 | 1.06 | 3.57 | 7.81 | 23.52 | |||||||||||||
| 1982 | 1.57 | 2.61 | 0.88 | 1.17 | 0.16 | 0.76 | d | 0.03 | 0.24 | 1.61 | 3.01 | 1.16 | 4.40 | 17.60 | ||||||||||||
| 1983 | 3.08 | 4.65 | 4.53 | 0.79 | 1.01 | 0.48 | 0.42 | 1.61 | 0.24 | 0.58 | 5.31 | 4.92 | 27.62 | |||||||||||||
| 1984 | 1.09 | 2.25 | 1.77 | 1.14 | 1.05 | 0.99 | 0.00 | 0.00 | 0.44 | 1.80 | 7.22 | 1.36 | 19.11 | |||||||||||||
| 1985 | 0.20 | 1.82 | 0.78 | 0.25 | 0.40 | 0.86 | 0.42 | 0.03 | 1.35 | 1.37 | 1.98 | 2.29 | 11.75 | |||||||||||||
| 1986 | 4.21 | 6.20 | 1.16 | 0.26 | 0.42 | 0.11 | 0.49 | 0.00 | 1.58 | 0.93 | 2.58 | h | 1.16 | 16.52 | ||||||||||||
| 1987 | 3.11 | 2.14 | 1.37 | 0.63 | c | 0.36 | a | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.74 | c | 6.14 | a | 14.49 | ||||
| 1988 | 3.75 | h | 0.00 | z | 0.48 | c | 2.54 | f | 0.27 | e | 1.34 | a | 0.00 | 0.00 | 0.17 | a | 0.00 | 5.40 | e | 1.38 | a | 9.04 | ||||
| 1989 | 3.41 | 1.17 | 3.14 | 1.72 | 0.72 | b | 0.65 | a | 0.93 | 0.64 | 0.30 | 0.87 | a | 0.81 | 0.46 | 14.82 | ||||||||||
| 1990 | 4.27 | a | 0.40 | b | 0.58 | 1.75 | 2.37 | 0.65 | a | 0.12 | 0.90 | b | 0.03 | a | 1.27 | d | 0.90 | e | 1.40 | c | 14.64 | |||||
| 1991 | 1.24 | c | 1.25 | a | 2.10 | c | 1.30 | e | 1.60 | b | 0.64 | b | 0.66 | a | 0.06 | a | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 8.85 | |
| 1992 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.59 | 0.90 | 0.37 | 0.07 | 0.54 | 0.92 | 2.11 | a | 4.11 | 9.61 | ||||||||
| 1993 | 2.94 | 1.36 | 2.27 | 0.83 | 2.63 | 1.99 | 0.70 | 0.00 | a | 0.00 | 0.20 | a | 0.77 | 1.93 | 15.62 | |||||||||||
| 1994 | 1.09 | 1.16 | 0.90 | 1.12 | 0.92 | 0.69 | 0.02 | 0.00 | 0.00 | b | 2.33 | 1.56 | a | 1.40 | 11.19 | |||||||||||
| 1995 | 5.05 | 2.69 | a | 1.41 | a | 2.30 | 0.86 | c | 1.68 | 1.52 | 0.03 | 0.67 | d | 0.75 | 3.39 | b | 4.09 | 24.44 | ||||||||
| 1996 | 4.11 | a | 4.23 | 1.84 | 1.56 | 1.37 | 0.86 | 0.19 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 14.16 | |||||||
| 1997 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.82 | e | 0.00 | 0.88 | a | 0.25 | e | 0.00 | z | 0.00 | z | 0.39 | a | 2.34 | ||
| 1998 | 3.99 | a | 2.33 | 0.00 | z | 1.05 | 4.14 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 11.51 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 3.24 | 2.29 | 1.58 | 1.02 | 0.93 | 0.79 | 0.31 | 0.40 | 0.60 | 1.13 | 2.65 | 3.08 | 17.99 | |||||||||||||
| S.D. | 1.79 | 1.34 | 1.04 | 0.55 | 0.89 | 0.57 | 0.37 | 0.53 | 0.52 | 0.82 | 1.88 | 2.02 | 4.36 | |||||||||||||
| SKEW | 0.13 | 1.07 | 1.06 | 0.53 | 2.00 | 0.52 | 1.53 | 1.12 | 0.58 | 0.90 | 0.80 | 0.43 | 0.44 | |||||||||||||
| MAX | 6.87 | 6.20 | 4.53 | 2.30 | 4.14 | 1.99 | 1.52 | 1.63 | 1.61 | 3.01 | 7.22 | 7.81 | 27.62 | |||||||||||||
| MIN | 0.20 | 0.40 | 0.22 | 0.23 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.46 | 0.27 | 11.19 | |||||||||||||
| NO YRS | 26 | 26 | 26 | 26 | 29 | 28 | 28 | 27 | 26 | 25 | 25 | 27 | 21 | |||||||||||||