| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1959 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.45 | 0.03 | 0.01 | 1.58 | 0.92 | 0.15 | 0.45 | 3.59 | ||||||||
| 1960 | 0.80 | 2.56 | 2.19 | 1.32 | 1.41 | 0.00 | 0.57 | 0.65 | 0.23 | 0.54 | 2.22 | 0.84 | 13.33 | |||||||||||||
| 1961 | 0.20 | 1.23 | 1.78 | 0.26 | 0.86 | 1.27 | 0.22 | 0.00 | 1.20 | 1.47 | 0.26 | 1.53 | 10.28 | |||||||||||||
| 1962 | 0.50 | 1.13 | 0.96 | 1.12 | 1.64 | 0.11 | 0.53 | 0.45 | 0.32 | 1.25 | 1.04 | 1.00 | 10.05 | |||||||||||||
| 1963 | 0.80 | 2.53 | 0.59 | 1.48 | 1.05 | 2.20 | 0.07 | 0.36 | 0.92 | 0.37 | 1.99 | 1.11 | 13.47 | |||||||||||||
| 1964 | 2.17 | 0.01 | 0.00 | z | 0.00 | z | 0.00 | z | 2.61 | 0.00 | z | 0.00 | z | 0.00 | z | 0.27 | 2.14 | 4.78 | 11.98 | |||||||
| 1965 | 0.00 | z | 0.00 | z | 0.85 | 1.06 | 2.07 | 1.63 | 0.00 | z | 0.00 | z | 1.16 | 0.06 | 0.90 | 0.19 | 7.92 | |||||||||
| 1966 | 0.49 | 0.39 | 0.84 | 0.42 | 0.00 | z | 0.54 | 0.00 | 0.00 | 0.00 | z | 0.00 | z | 1.82 | 0.00 | z | 4.50 | |||||||||
| 1967 | 0.00 | z | 0.00 | z | 0.00 | z | 0.87 | 0.92 | 2.24 | 0.31 | 0.14 | 0.43 | 0.81 | 0.48 | 1.01 | a | 7.21 | |||||||||
| 1968 | 0.29 | c | 1.31 | 0.50 | 0.00 | 1.56 | 0.39 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 4.05 | ||||||
| 1969 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | 0.26 | 1.31 | 0.67 | a | 3.09 | 5.33 | |||||
| 1970 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 3.07 | 0.00 | 0.00 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 3.07 | ||||
| 1971 | 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 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1972 | 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 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.75 | 1.31 | 1.10 | 0.82 | 1.36 | 1.32 | 0.22 | 0.18 | 0.76 | 0.78 | 1.17 | 1.56 | 11.78 | |||||||||||||
| S.D. | 0.67 | 0.97 | 0.64 | 0.53 | 0.44 | 1.09 | 0.23 | 0.25 | 0.52 | 0.50 | 0.80 | 1.46 | 1.87 | |||||||||||||
| SKEW | 1.56 | 0.16 | 0.85 | -0.32 | 0.32 | 0.24 | 0.55 | 0.91 | 0.32 | 0.01 | 0.15 | 1.37 | 0.00 | |||||||||||||
| MAX | 2.17 | 2.56 | 2.19 | 1.48 | 2.07 | 3.07 | 0.57 | 0.65 | 1.58 | 1.47 | 2.22 | 4.78 | 13.47 | |||||||||||||
| MIN | 0.20 | 0.01 | 0.50 | 0.00 | 0.86 | 0.00 | 0.00 | 0.00 | 0.23 | 0.06 | 0.15 | 0.19 | 10.05 | |||||||||||||
| NO YRS | 7 | 7 | 7 | 8 | 7 | 11 | 8 | 9 | 8 | 9 | 10 | 9 | 4 | |||||||||||||