| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.88 | b | 0.24 | 1.12 | j | |
| 1966 | 0.11 | 0.21 | 0.13 | 0.32 | 0.42 | 1.37 | 1.37 | 0.17 | 1.33 | 0.00 | 0.28 | 1.10 | 6.81 | |||||||||||||
| 1967 | 0.64 | 0.23 | 0.88 | 1.23 | 0.36 | 0.85 | 0.54 | 0.58 | 1.46 | 0.09 | 0.35 | 0.12 | 7.33 | |||||||||||||
| 1968 | 0.30 | 0.75 | 0.25 | 0.39 | 0.39 | 2.22 | 0.14 | 2.74 | 0.03 | 0.86 | 0.35 | 0.41 | 8.83 | |||||||||||||
| 1969 | 0.68 | 0.95 | 0.07 | 0.36 | 0.67 | 4.16 | 0.51 | 0.39 | 0.03 | 0.61 | 0.30 | 0.59 | 9.32 | |||||||||||||
| 1970 | 0.34 | 0.13 | 0.24 | 0.53 | 0.69 | 1.04 | 0.67 | 1.65 | 0.30 | 0.08 | 0.47 | 0.57 | 6.71 | |||||||||||||
| 1971 | 0.60 | 0.31 | 0.16 | 0.98 | 1.53 | 0.16 | 0.55 | 0.48 | 0.10 | 0.25 | 0.91 | 0.72 | 6.75 | |||||||||||||
| 1972 | 0.05 | 0.24 | 0.16 | 0.10 | 0.22 | 2.16 | 0.05 | 0.83 | 1.61 | 1.37 | 0.53 | 0.49 | 7.81 | |||||||||||||
| 1973 | 0.53 | 0.63 | 0.49 | 0.30 | 0.19 | 1.02 | 0.52 | 0.32 | 0.04 | 0.77 | 0.48 | 0.61 | 5.90 | |||||||||||||
| 1974 | 0.44 | 0.27 | 0.48 | 0.53 | 0.06 | 0.00 | 1.25 | 0.30 | 0.00 | 1.06 | 0.87 | 0.24 | 5.50 | |||||||||||||
| 1975 | 0.64 | 0.24 | 0.50 | 1.17 | 0.58 | 0.33 | 0.12 | 1.43 | 0.91 | 1.77 | 0.25 | 0.12 | 8.06 | |||||||||||||
| 1976 | 0.25 | 0.61 | 0.25 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.11 | i | |||
| 1977 | 0.81 | 0.00 | b | ----- | z | ----- | z | 1.60 | 0.23 | ----- | z | 1.08 | 0.11 | 0.00 | 0.00 | 0.73 | y | 3.83 | d | |||||||
| 1978 | 0.96 | h | ----- | z | 0.84 | h | 1.88 | d | ----- | z | 0.00 | 0.10 | 0.05 | 0.80 | 0.00 | 0.40 | 0.45 | 3.68 | d | |||||||
| 1979 | 0.74 | a | 0.65 | 0.70 | 0.30 | ----- | z | 0.03 | 0.67 | 2.03 | 0.14 | 0.22 | a | 0.60 | 0.28 | 6.36 | a | |||||||||
| 1980 | 1.77 | 0.18 | ----- | z | 0.30 | 1.75 | b | 0.06 | 1.28 | 0.02 | 0.63 | 0.00 | b | 0.57 | 0.00 | 6.56 | a | |||||||||
| 1981 | 0.10 | 0.00 | j | 0.95 | b | 0.65 | 1.58 | 0.05 | 0.15 | 0.13 | 0.05 | 0.26 | a | 0.10 | 0.16 | a | 4.18 | a | ||||||||
| 1982 | 1.33 | g | 0.15 | c | 0.47 | d | 0.35 | 0.84 | w | 0.52 | b | 0.84 | 0.99 | 1.42 | c | 1.05 | a | 0.59 | e | 0.29 | e | 6.67 | b | |||
| 1983 | 0.81 | b | 0.19 | e | 0.30 | h | 0.74 | b | 0.05 | e | ----- | z | 0.00 | a | 3.28 | b | 1.80 | 0.98 | a | 1.71 | b | 1.79 | c | 11.35 | b | |
| 1984 | 0.07 | a | 0.22 | b | 0.88 | 0.67 | c | 0.51 | a | 1.33 | 1.84 | 2.56 | a | 0.63 | 0.35 | a | 0.45 | d | 0.15 | 9.66 | ||||||
| 1985 | ----- | z | 0.00 | d | 0.10 | e | 0.15 | 1.05 | 0.37 | a | 1.05 | 0.00 | 0.55 | 0.43 | b | 0.67 | d | 0.11 | d | 4.48 | a | |||||
| 1986 | ----- | z | ----- | z | ----- | z | ----- | z | 0.03 | f | 0.03 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.03 | k | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.52 | 0.33 | 0.42 | 0.61 | 0.73 | 0.84 | 0.65 | 1.00 | 0.63 | 0.53 | 0.54 | 0.44 | 7.52 | |||||||||||||
| S.D. | 0.42 | 0.27 | 0.30 | 0.45 | 0.59 | 1.07 | 0.53 | 1.01 | 0.62 | 0.53 | 0.37 | 0.42 | 1.36 | |||||||||||||
| SKEW | 1.46 | 0.92 | 0.57 | 1.39 | 0.64 | 1.76 | 0.63 | 0.94 | 0.59 | 0.79 | 1.56 | 1.89 | 0.19 | |||||||||||||
| MAX | 1.77 | 0.95 | 0.95 | 1.88 | 1.75 | 4.16 | 1.84 | 3.28 | 1.80 | 1.77 | 1.71 | 1.79 | 9.66 | |||||||||||||
| MIN | 0.05 | 0.00 | 0.07 | 0.10 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.50 | |||||||||||||
| YRS | 17 | 18 | 16 | 18 | 16 | 19 | 18 | 19 | 19 | 19 | 20 | 19 | 11 | |||||||||||||