| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1966 | ----- | z | ----- | z | ----- | z | ----- | z | 1.36 | 0.30 | 0.66 | 0.17 | 0.57 | 0.05 | 0.56 | 0.82 | 4.49 | d | ||||||||
| 1967 | 0.64 | 0.08 | 1.32 | 1.72 | 1.56 | 3.15 | 0.92 | 0.34 | 1.10 | 0.59 | 0.29 | 0.82 | 12.53 | |||||||||||||
| 1968 | 0.13 | 1.14 | 0.55 | 1.36 | 1.21 | 1.85 | 0.61 | 1.83 | 0.50 | 0.68 | 0.58 | 0.72 | 11.16 | |||||||||||||
| 1969 | 0.79 | 1.97 | 0.37 | 2.09 | 0.02 | 2.08 | 0.12 | 0.56 | 0.00 | 2.41 | 0.32 | ----- | z | 10.73 | a | |||||||||||
| 1970 | ----- | z | 0.21 | 0.51 | 0.77 | p | 0.13 | 1.30 | 0.87 | 0.61 | 0.92 | ----- | z | ----- | z | ----- | z | 4.55 | e | |||||||
| 1971 | ----- | z | ----- | z | ----- | z | ----- | z | 1.53 | 0.44 | 0.12 | 0.56 | 0.54 | 0.90 | 0.30 | 0.31 | 4.70 | d | ||||||||
| 1972 | 0.25 | 0.51 | 0.00 | 0.82 | 0.15 | 1.46 | c | 0.20 | 0.85 | 1.12 | 1.61 | 0.45 | 0.55 | 7.97 | ||||||||||||
| 1973 | 0.61 | 0.31 | 2.03 | 2.08 | 0.96 | 0.74 | 1.97 | 0.88 | 0.49 | 0.70 | 1.32 | 0.05 | 12.14 | |||||||||||||
| 1974 | 0.70 | 0.32 | 0.67 | 0.88 | a | 0.89 | 0.00 | 0.39 | 0.00 | 0.04 | 1.05 | 0.23 | j | ----- | z | 4.94 | b | |||||||||
| 1975 | 0.23 | 0.01 | 1.37 | 1.37 | 1.78 | 0.54 | 1.11 | 0.18 | 0.45 | 1.33 | 0.14 | 0.31 | 8.82 | |||||||||||||
| 1976 | 0.22 | 0.71 | 0.44 | 0.90 | 0.26 | 0.00 | 0.41 | 0.31 | 0.91 | 1.02 | 0.10 | 0.01 | 5.29 | |||||||||||||
| 1977 | 0.22 | h | 0.02 | 0.90 | 0.10 | 5.25 | 0.50 | 0.66 | 3.36 | 0.98 | 0.29 | 0.41 | 0.27 | 12.74 | a | |||||||||||
| 1978 | 0.57 | 1.35 | 2.00 | 1.61 | 1.12 | 0.10 | 0.20 | 0.38 | 0.91 | 0.07 | 0.78 | 0.63 | 9.72 | |||||||||||||
| 1979 | 2.20 | 0.50 | 0.41 | 0.08 | 0.61 | 0.36 | 0.48 | 0.26 | 0.03 | 1.47 | 0.03 | 0.01 | 6.44 | |||||||||||||
| 1980 | 2.10 | 1.34 | 1.50 | 1.22 | 4.17 | 1.59 | 0.12 | 0.27 | 1.07 | 0.25 | ----- | z | 0.96 | 14.59 | a | |||||||||||
| 1981 | 0.16 | 0.13 | 2.29 | 1.72 | 3.62 | 0.15 | 0.30 | 0.16 | 0.84 | 3.31 | 0.05 | 1.15 | 13.88 | |||||||||||||
| 1982 | 0.55 | 0.54 | 0.54 | 0.54 | 1.12 | 0.51 | 1.40 | 1.08 | a | 8.58 | 0.96 | 0.37 | 0.46 | 16.65 | ||||||||||||
| 1983 | 1.49 | 0.94 | 1.65 | 4.03 | 2.22 | 1.05 | 0.22 | 5.12 | 1.14 | 1.30 | 1.57 | 1.35 | 22.08 | |||||||||||||
| 1984 | 0.19 | 0.53 | 2.00 | 1.61 | 0.36 | 2.38 | 2.87 | 3.71 | 1.50 | 1.95 | 0.13 | 0.07 | 17.30 | |||||||||||||
| 1985 | 0.76 | 0.38 | 1.23 | 0.41 | 0.98 | 0.73 | 3.33 | 0.00 | 1.55 | 0.43 | 2.30 | 0.63 | 12.73 | |||||||||||||
| 1986 | 0.77 | 1.23 | 0.88 | 3.91 | 1.60 | 0.50 | 0.27 | 1.76 | 1.25 | 0.62 | ----- | z | ----- | z | 12.79 | b | ||||||||||
| 1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.37 | 0.00 | 2.33 | 1.11 | 0.33 | g | 3.81 | h | ||||
| 1988 | 0.97 | 0.00 | 0.30 | a | 0.49 | 1.20 | 0.41 | 0.16 | 1.41 | 1.10 | 0.15 | 0.69 | 0.15 | a | 7.03 | |||||||||||
| 1989 | 0.08 | 1.03 | 0.63 | 0.10 | 1.45 | 0.39 | 1.02 | 2.75 | 0.87 | 0.48 | 0.43 | a | 0.30 | 9.53 | ||||||||||||
| 1990 | 0.28 | 0.27 | 1.00 | 0.82 | 0.84 | 0.18 | d | 0.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.99 | e | ||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.68 | 0.61 | 1.03 | 1.33 | 1.43 | 0.86 | 0.79 | 1.12 | 1.10 | 1.04 | 0.60 | 0.50 | 11.55 | |||||||||||||
| S.D. | 0.61 | 0.54 | 0.66 | 1.08 | 1.28 | 0.83 | 0.85 | 1.34 | 1.66 | 0.84 | 0.58 | 0.39 | 4.56 | |||||||||||||
| SKEW | 1.40 | 0.84 | 0.45 | 1.23 | 1.62 | 1.22 | 1.83 | 1.62 | 4.04 | 1.05 | 1.56 | 0.51 | 0.74 | |||||||||||||
| MAX | 2.20 | 1.97 | 2.29 | 4.03 | 5.25 | 3.15 | 3.33 | 5.12 | 8.58 | 3.31 | 2.30 | 1.35 | 22.08 | |||||||||||||
| MIN | 0.08 | 0.00 | 0.00 | 0.08 | 0.02 | 0.00 | 0.12 | 0.00 | 0.00 | 0.05 | 0.03 | 0.01 | 5.29 | |||||||||||||
| YRS | 20 | 22 | 22 | 21 | 24 | 24 | 24 | 24 | 24 | 23 | 20 | 19 | 15 | |||||||||||||