| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.59 | i | 44.87 | 43.71 | 44.29 | |||
| 1974 | ----- | z | 45.32 | 49.47 | a | 56.63 | 63.45 | 82.72 | a | 83.48 | 84.32 | 81.93 | 66.10 | 50.77 | 41.13 | 64.12 | ||||||||||
| 1975 | 36.73 | a | 40.64 | 47.74 | 50.90 | 65.48 | 72.50 | 85.90 | 78.68 | 78.80 | 59.81 | 47.83 | 43.68 | 59.06 | ||||||||||||
| 1976 | 40.13 | 43.03 | 48.16 | 57.47 | 71.77 | 73.00 | 84.42 | 73.71 | 78.17 | 65.55 | 52.40 | 43.74 | 60.96 | |||||||||||||
| 1977 | 32.90 | 49.57 | 46.35 | 66.93 | 60.61 | 80.40 | 82.48 | 85.81 | 70.03 | 62.06 | 47.37 | 43.52 | 60.67 | |||||||||||||
| 1978 | 43.29 | 46.04 | 56.77 | 56.67 | 62.19 | 76.07 | 83.97 | 80.68 | 71.27 | 66.52 | 41.87 | 33.26 | 59.88 | |||||||||||||
| 1979 | 25.97 | 40.89 | 53.61 | 57.20 | 68.13 | 78.47 | 86.03 | 83.45 | 80.10 | 65.39 | 45.67 | 46.00 | 60.91 | |||||||||||||
| 1980 | ----- | z | 46.45 | 47.61 | 63.60 | 66.35 | 69.70 | 82.77 | 79.65 | 75.27 | 64.94 | 49.23 | 46.81 | 62.94 | ||||||||||||
| 1981 | 44.35 | 46.54 | 54.50 | c | 59.43 | 63.16 | 71.47 | 82.29 | 88.03 | 77.30 | 59.19 | 51.63 | 43.81 | 61.81 | ||||||||||||
| 1982 | 35.68 | 41.79 | 50.26 | 55.20 | 65.52 | 76.20 | 79.71 | 82.94 | 69.60 | 59.58 | 44.17 | 39.19 | 58.32 | |||||||||||||
| 1983 | 45.13 | 49.21 | 53.00 | 57.20 | 69.58 | 72.63 | 78.42 | 84.10 | 70.27 | 63.23 | 49.40 | 28.35 | 60.04 | |||||||||||||
| 1984 | 34.55 | 39.72 | 51.26 | 54.20 | 62.77 | 70.40 | 84.61 | 85.32 | 69.60 | 55.42 | 48.00 | 33.68 | 57.46 | |||||||||||||
| 1985 | 28.84 | 33.86 | ----- | z | 61.50 | ----- | z | 77.13 | 89.84 | 78.55 | 64.10 | 58.68 | 34.37 | 27.55 | 55.44 | |||||||||||
| 1986 | 42.48 | 46.14 | 56.35 | 58.07 | 67.03 | a | 81.43 | 79.42 | 87.90 | 67.17 | 65.03 | 45.90 | 38.42 | 61.28 | ||||||||||||
| 1987 | 36.52 | 45.71 | 51.65 | 67.67 | 70.87 | 79.63 | 79.84 | 83.52 | 80.50 | 69.65 | 49.97 | 40.06 | 62.96 | |||||||||||||
| 1988 | 35.35 | 43.76 | 50.45 | 61.80 | 66.94 | 72.37 | 83.94 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.23 | ||||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 37.07 | 43.91 | 51.23 | 58.96 | 65.99 | 75.61 | 83.14 | 82.62 | 73.86 | 62.94 | 46.90 | 39.53 | 60.31 | |||||||||||||
| S.D. | 5.88 | 4.07 | 3.28 | 4.61 | 3.34 | 4.22 | 3.00 | 3.98 | 5.65 | 3.92 | 4.53 | 6.14 | 1.58 | |||||||||||||
| SKEW | -0.29 | -0.84 | 0.27 | 0.44 | 0.18 | 0.23 | 0.33 | -0.64 | -0.09 | -0.26 | -1.38 | -0.81 | -0.25 | |||||||||||||
| MAX | 45.13 | 49.57 | 56.77 | 67.67 | 71.77 | 82.72 | 89.84 | 88.03 | 81.93 | 69.65 | 52.40 | 46.81 | 62.96 | |||||||||||||
| MIN | 25.97 | 33.86 | 46.35 | 50.90 | 60.61 | 69.70 | 78.42 | 73.71 | 64.10 | 55.42 | 34.37 | 27.55 | 57.46 | |||||||||||||
| NO YRS | 13 | 15 | 14 | 15 | 14 | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 11 | |||||||||||||