| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.43 | 40.71 | c | 46.07 | j | |
| 1969 | 42.81 | 39.07 | 47.71 | 62.10 | 76.48 | 74.38 | a | 90.90 | 92.35 | 82.80 | 59.71 | 52.83 | 43.06 | 63.68 | ||||||||||||
| 1970 | 44.16 | 53.64 | 51.39 | 52.90 | 69.48 | 79.00 | 90.71 | 92.39 | 75.79 | b | 63.32 | 52.00 | 38.52 | 63.61 | ||||||||||||
| 1971 | 46.52 | 47.07 | 51.97 | 59.53 | 64.77 | 79.97 | 92.03 | 92.32 | 75.30 | 60.84 | 49.37 | 36.84 | 63.04 | |||||||||||||
| 1972 | 38.55 | 49.97 | 61.48 | 61.83 | 75.00 | a | 84.03 | 93.87 | 87.97 | 75.50 | 62.19 | 47.34 | a | 35.29 | 64.42 | |||||||||||
| 1973 | 39.00 | 44.29 | 47.35 | 56.57 | 75.13 | 84.10 | 93.55 | 91.35 | 82.03 | 67.84 | 48.23 | 44.03 | 64.46 | |||||||||||||
| 1974 | 42.94 | 49.46 | 54.94 | 61.03 | 75.13 | 91.40 | 92.39 | 91.97 | 86.41 | a | 67.71 | 53.87 | 39.94 | 67.26 | ||||||||||||
| 1975 | 43.97 | a | 44.72 | c | 49.43 | a | 49.72 | a | 70.61 | 81.30 | 95.42 | 87.97 | 84.07 | 64.26 | 52.50 | d | 45.84 | 64.15 | ||||||||
| 1976 | 45.00 | 49.68 | d | 49.55 | t | 60.07 | 76.77 | 83.20 | 95.23 | 83.46 | e | 79.82 | b | 67.19 | 58.33 | 46.65 | 67.76 | a | ||||||||
| 1977 | 39.77 | 52.75 | 49.55 | 68.33 | 63.37 | a | 87.83 | 94.10 | 90.23 | a | 82.00 | 72.61 | 56.90 | 49.87 | 67.28 | |||||||||||
| 1978 | 43.97 | 46.57 | 58.39 | 59.17 | 68.32 | 82.87 | 94.19 | 91.94 | 75.37 | 73.03 | 49.03 | 36.90 | 64.98 | |||||||||||||
| 1979 | 34.17 | a | 44.29 | 54.58 | 60.90 | 74.06 | 85.33 | 93.90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.89 | e | ||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 41.89 | 47.41 | 52.68 | 59.29 | 71.74 | 83.04 | 93.30 | 90.20 | 79.91 | 65.87 | 51.99 | 41.60 | 64.76 | |||||||||||||
| S.D. | 3.61 | 4.25 | 4.65 | 4.92 | 4.73 | 4.52 | 1.59 | 2.92 | 4.15 | 4.61 | 3.47 | 4.66 | 1.53 | |||||||||||||
| SKEW | -0.83 | -0.31 | 0.64 | -0.32 | -0.61 | -0.05 | -0.41 | -1.34 | 0.07 | 0.31 | 0.46 | 0.30 | 0.87 | |||||||||||||
| MAX | 46.52 | 53.64 | 61.48 | 68.33 | 76.77 | 91.40 | 95.42 | 92.39 | 86.41 | 73.03 | 58.33 | 49.87 | 67.28 | |||||||||||||
| MIN | 34.17 | 39.07 | 47.35 | 49.72 | 63.37 | 74.38 | 90.71 | 83.46 | 75.30 | 59.71 | 47.34 | 35.29 | 63.04 | |||||||||||||
| YRS | 11 | 11 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 9 | |||||||||||||