| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.81 | w | 33.98 | 28.47 | 31.23 | |||
| 1961 | 30.60 | 35.20 | 35.27 | 40.83 | 47.21 | 62.87 | 65.68 | 66.40 | 49.33 | 44.61 | 32.05 | 27.66 | 44.81 | |||||||||||||
| 1962 | 22.02 | 29.75 | 32.90 | 45.92 | 45.52 | 55.85 | 62.37 | 60.06 | 56.77 | 45.34 | 36.50 | 31.81 | 43.73 | |||||||||||||
| 1963 | 24.77 | 38.93 | 34.50 | 35.98 | a | 50.82 | 53.95 | 58.66 | 60.47 | 59.60 | 47.23 | 36.52 | 29.63 | 44.25 | ||||||||||||
| 1964 | 25.05 | 27.53 | 31.32 | 40.87 | 46.71 | 54.28 | 64.56 | 62.00 | 52.57 | 49.44 | 33.28 | 28.69 | 43.03 | |||||||||||||
| 1965 | 29.34 | 35.04 | 35.31 | 43.03 | 48.44 | g | 56.52 | 62.85 | 61.02 | 47.40 | d | ----- | z | 37.38 | 26.92 | 43.48 | ||||||||||
| 1966 | 26.63 | 28.91 | 38.21 | 43.03 | 52.63 | 55.90 | 61.68 | 63.69 | 58.10 | 47.27 | 36.10 | 28.97 | 45.09 | |||||||||||||
| 1967 | 30.21 | 35.02 | 32.33 | b | 33.85 | 47.94 | 56.57 | 65.79 | 67.53 | 59.57 | 45.98 | 37.35 | 25.05 | 44.76 | ||||||||||||
| 1968 | 27.58 | 37.52 | 38.85 | 38.77 | 48.81 | 58.73 | 68.29 | 59.95 | 55.33 | 45.63 | 35.17 | 27.42 | 45.17 | |||||||||||||
| 1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.87 | ----- | z | ----- | z | ----- | z | ----- | z | 61.87 | ||
| 1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.43 | 24.18 | 29.81 | |||
| 1972 | 24.26 | 31.14 | 41.08 | 38.70 | 51.16 | 58.70 | 65.05 | 65.35 | 51.02 | 44.34 | 34.07 | 20.98 | 43.82 | |||||||||||||
| 1973 | 25.92 | 33.59 | 34.73 | 41.45 | 53.26 | 58.53 | 66.42 | 63.48 | 55.65 | 45.53 | 33.63 | 31.48 | 45.31 | |||||||||||||
| 1974 | 25.56 | 32.11 | 35.94 | 40.97 | 46.85 | 61.75 | 63.73 | 63.30 | a | 57.95 | 45.42 | 35.16 | a | 28.39 | 44.76 | |||||||||||
| 1975 | 25.13 | 28.80 | 32.63 | 33.94 | e | 48.25 | a | 55.02 | 67.34 | 60.08 | a | 58.45 | 44.74 | 33.48 | 32.05 | 43.33 | ||||||||||
| 1976 | 29.10 | 30.57 | 31.55 | a | 38.98 | 50.64 | b | 53.67 | 65.45 | 59.27 | 57.98 | 46.62 | a | 40.08 | 29.34 | 44.44 | ||||||||||
| 1977 | 23.44 | 34.93 | 32.48 | 45.67 | 44.19 | 61.72 | 64.10 | 67.31 | 54.58 | 46.81 | 34.50 | 30.27 | 45.00 | |||||||||||||
| 1978 | 30.21 | 32.55 | 42.02 | 40.30 | 46.80 | a | 56.33 | 64.31 | 61.94 | 52.68 | 48.77 | 30.00 | 22.90 | 44.07 | ||||||||||||
| 1979 | 18.29 | 30.38 | 38.27 | 41.17 | 51.65 | 60.30 | 66.29 | 63.31 | 59.82 | 50.24 | 30.72 | 30.81 | 45.10 | |||||||||||||
| 1980 | 27.19 | 36.05 | 35.02 | 45.23 | 49.52 | 54.03 | 66.94 | 62.73 | 57.90 | 47.97 | 36.77 | 31.89 | 45.94 | |||||||||||||
| 1981 | 29.68 | 30.66 | 37.52 | 44.45 | 48.82 | 56.52 | 64.74 | 66.92 | 57.43 | a | 43.71 | 36.67 | 30.58 | 45.64 | ||||||||||||
| 1982 | 20.92 | 27.54 | 33.95 | 38.03 | 48.48 | 57.45 | 62.50 | 63.98 | 53.67 | 43.94 | 29.42 | 24.89 | 42.06 | |||||||||||||
| 1983 | 31.24 | 34.11 | 37.42 | 38.68 | 50.13 | 54.82 | 61.02 | 64.48 | 54.82 | 47.92 | 35.22 | 22.00 | 44.32 | |||||||||||||
| 1984 | 20.60 | 26.34 | 36.35 | 39.12 | 49.60 | 53.85 | 67.84 | 65.23 | 54.75 | 41.03 | 34.17 | 21.34 | 42.52 | |||||||||||||
| 1985 | 21.58 | 25.20 | 32.39 | 46.58 | 50.52 | 59.07 | 69.39 | 61.76 | 49.47 | 44.06 | 25.05 | 18.97 | 42.00 | |||||||||||||
| 1986 | 30.85 | 35.48 | 42.11 | 41.80 | 50.87 | a | 62.65 | 61.58 | 68.13 | ----- | z | ----- | z | ----- | z | ----- | z | 49.18 | ||||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 26.09 | 32.06 | 35.75 | 40.75 | 49.11 | 57.35 | 64.63 | 63.34 | 55.22 | 46.03 | 34.28 | 27.28 | 44.25 | |||||||||||||
| S.D. | 3.75 | 3.70 | 3.25 | 3.53 | 2.30 | 2.94 | 2.60 | 2.64 | 3.59 | 2.17 | 3.15 | 3.86 | 1.12 | |||||||||||||
| SKEW | -0.34 | -0.07 | 0.53 | -0.20 | -0.21 | 0.52 | -0.29 | 0.27 | -0.62 | -0.06 | -1.02 | -0.62 | -0.66 | |||||||||||||
| MAX | 31.24 | 38.93 | 42.11 | 46.58 | 53.26 | 62.87 | 69.39 | 68.13 | 59.82 | 50.24 | 40.08 | 32.05 | 45.94 | |||||||||||||
| MIN | 18.29 | 25.20 | 31.32 | 33.85 | 44.19 | 53.67 | 58.66 | 59.27 | 47.40 | 41.03 | 25.05 | 18.97 | 42.00 | |||||||||||||
| NO YRS | 23 | 23 | 23 | 23 | 22 | 23 | 23 | 24 | 22 | 21 | 24 | 24 | 21 | |||||||||||||