| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | w | 0.60 | 0.08 | 0.00 | 0.00 | 0.00 | 0.03 | ----- | z | ||||||
| 1960 | 0.19 | 0.38 | a | 0.00 | 0.00 | ----- | z | 0.37 | 0.32 | 0.00 | 0.17 | 0.40 | 0.98 | 0.12 | ----- | z | ||||||||||
| 1961 | 0.30 | 0.00 | 0.06 | 0.21 | 0.78 | 0.42 | 0.76 | 1.20 | 0.18 | a | 0.00 | 0.20 | h | 0.00 | c | 1.20 | l | |||||||||
| 1962 | 0.40 | 0.75 | 0.61 | 0.00 | ----- | z | 0.64 | 1.10 | 0.00 | 0.65 | 0.00 | 0.10 | 0.00 | ----- | z | |||||||||||
| 1963 | 0.50 | a | 0.50 | 0.35 | 0.50 | 0.30 | 0.65 | 0.00 | 0.68 | 0.45 | 0.25 | 0.35 | 0.03 | 0.68 | a | |||||||||||
| 1964 | 0.20 | 0.30 | 0.20 | 1.20 | 0.65 | 0.00 | 0.00 | 0.00 | 0.15 | 0.57 | 0.10 | ----- | z | ----- | z | |||||||||||
| 1965 | 0.45 | 0.15 | 0.15 | 0.60 | 0.30 | 0.25 | 0.85 | 1.35 | 0.00 | 0.00 | 0.25 | 1.12 | g | 1.35 | g | |||||||||||
| 1966 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.16 | 2.90 | 0.11 | 0.92 | 0.00 | 0.40 | 0.69 | 2.90 | |||||||||||||
| 1967 | 0.61 | 0.10 | 0.19 | 0.92 | 0.24 | 0.14 | 2.00 | 0.18 | 0.48 | 0.00 | 0.36 | 0.20 | 2.00 | |||||||||||||
| 1968 | 0.00 | 0.25 | 0.00 | 0.20 | 0.05 | 0.15 | 1.15 | 0.60 | 0.00 | 0.20 | 0.25 | 0.75 | 1.15 | |||||||||||||
| 1969 | 3.10 | f | 0.80 | l | ----- | z | 0.00 | 0.30 | 1.20 | 0.00 | 0.00 | 0.00 | 0.20 | 0.25 | 0.40 | ----- | z | |||||||||
| 1970 | ----- | z | 0.25 | 0.24 | 1.85 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.65 | 0.50 | ----- | z | |||||||||||
| 1971 | 0.30 | 0.00 | 0.35 | 0.40 | 1.20 | 0.00 | 0.32 | 0.30 | 0.00 | 0.00 | 0.35 | 1.85 | f | 1.85 | f | |||||||||||
| 1972 | 0.20 | 0.00 | 0.10 | 0.04 | 0.00 | 0.35 | 0.00 | 0.32 | 1.00 | 1.90 | 0.32 | 0.25 | 1.90 | |||||||||||||
| 1973 | 1.50 | 0.45 | 0.80 | 0.20 | 0.10 | a | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.60 | g | 0.60 | 1.50 | h | ||||||||||
| 1974 | 1.20 | 0.00 | 0.60 | 0.00 | 0.50 | 0.00 | 0.30 | 0.25 | 0.00 | 0.40 | ----- | z | ----- | z | ----- | z | ||||||||||
| 1975 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | d | ----- | z | ----- | z | 0.00 | t | 1.68 | 0.58 | 0.00 | c | 0.00 | c | ----- | z | ||
| 1976 | 0.00 | 0.80 | 0.00 | a | 0.39 | 0.48 | 0.51 | 0.93 | 0.01 | 0.74 | 0.19 | 0.06 | 0.00 | 0.93 | a | |||||||||||
| 1977 | ----- | z | 0.05 | 0.35 | 0.16 | 0.41 | 0.64 | 0.20 | 0.65 | 0.00 | 0.00 | 0.00 | ----- | z | ----- | z | ||||||||||
| 1978 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | a | 0.50 | ----- | z | 0.00 | b | ----- | z | |||||
| 1979 | 0.25 | e | 0.00 | b | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
| 1980 | 0.20 | b | ----- | z | ----- | z | 0.30 | 1.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.39 | 0.23 | 0.27 | 0.38 | 0.35 | 0.29 | 0.60 | 0.30 | 0.33 | 0.26 | 0.28 | 0.24 | 1.59 | |||||||||||||
| S.D. | 0.42 | 0.26 | 0.25 | 0.48 | 0.41 | 0.33 | 0.76 | 0.41 | 0.46 | 0.44 | 0.26 | 0.28 | 0.83 | |||||||||||||
| SKEW | 1.60 | 0.92 | 0.65 | 1.81 | 1.27 | 1.19 | 1.70 | 1.43 | 1.53 | 2.75 | 1.26 | 0.72 | 0.46 | |||||||||||||
| MAX | 1.50 | 0.80 | 0.80 | 1.85 | 1.40 | 1.20 | 2.90 | 1.35 | 1.68 | 1.90 | 0.98 | 0.75 | 2.90 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.68 | |||||||||||||
| YRS | 16 | 17 | 17 | 19 | 19 | 19 | 20 | 19 | 20 | 20 | 16 | 15 | 6 | |||||||||||||