| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1964 | ----- | z | ----- | z | ----- | z | 60.43 | 65.74 | 71.77 | 80.90 | 79.74 | 76.07 | 69.00 | 49.10 | 45.87 | 66.51 | ||||||||||
| 1965 | 45.45 | 53.07 | 61.00 | 62.87 | 66.68 | 74.07 | 84.16 | 81.87 | 75.87 | 68.10 | 55.00 | 45.13 | 64.44 | |||||||||||||
| 1966 | 46.61 | 50.43 | 55.29 | 65.03 | 70.48 | 76.17 | 80.32 | 83.61 | 78.87 | 65.03 | 53.97 | 49.94 | 64.65 | |||||||||||||
| 1967 | 49.30 | a | 54.64 | 53.45 | 56.63 | 70.45 | 78.30 | 85.55 | 90.90 | 82.20 | 64.84 | 54.73 | 46.77 | 65.65 | ||||||||||||
| 1968 | 47.03 | 57.97 | 59.13 | 62.17 | 68.03 | 75.03 | 83.42 | 77.90 | 74.13 | 62.58 | 53.70 | 44.58 | 63.81 | |||||||||||||
| 1969 | 41.19 | 47.04 | 60.10 | 61.13 | 73.06 | 73.83 | 79.52 | 80.65 | 75.17 | 60.74 | 52.73 | 47.77 | 62.74 | |||||||||||||
| 1970 | 47.65 | 55.71 | 57.65 | 57.73 | 69.60 | a | 77.57 | 84.26 | 82.74 | 73.53 | 63.65 | 52.93 | 44.61 | 63.97 | ||||||||||||
| 1971 | 45.68 | 49.21 | 51.35 | 59.60 | 68.42 | 70.23 | 82.13 | 82.58 | 72.70 | 60.48 | 51.47 | 44.77 | 61.55 | |||||||||||||
| 1972 | 45.26 | 51.17 | 58.42 | 57.33 | 70.42 | 74.73 | 85.90 | 85.23 | 73.37 | 63.65 | 53.30 | 41.97 | 63.40 | |||||||||||||
| 1973 | 44.58 | 54.64 | 54.42 | 64.10 | 71.81 | 75.47 | 83.71 | 81.03 | 75.70 | 64.03 | 49.10 | 48.00 | 63.88 | |||||||||||||
| 1974 | 44.39 | 48.46 | 56.35 | 60.80 | 66.13 | 76.60 | 80.26 | 82.77 | 84.63 | 69.23 | 54.10 | 49.55 | 64.44 | |||||||||||||
| 1975 | 49.81 | 50.21 | 53.19 | 56.77 | 69.29 | 74.00 | 81.97 | 77.94 | 80.97 | 60.94 | 52.33 | 48.32 | 62.98 | |||||||||||||
| 1976 | 49.13 | 49.79 | 55.19 | 60.07 | 69.35 | 72.13 | 82.13 | 78.29 | 78.33 | 67.71 | 55.70 | 45.74 | 63.63 | |||||||||||||
| 1977 | 49.39 | 54.82 | 55.16 | 65.83 | 63.23 | 77.30 | 80.94 | 86.19 | 71.20 | 64.19 | 51.57 | 48.81 | 64.05 | |||||||||||||
| 1978 | 48.10 | 52.14 | 60.90 | 58.90 | 66.19 | 76.13 | 82.26 | 81.19 | 71.07 | 66.97 | 49.77 | 43.26 | 63.07 | |||||||||||||
| 1979 | 39.39 | 48.21 | 60.29 | 61.10 | 69.77 | 76.70 | 84.74 | 80.58 | 77.30 | 67.16 | 49.87 | 49.81 | 63.74 | |||||||||||||
| 1980 | 43.97 | 51.79 | 55.16 | 64.43 | 66.71 | 69.07 | 82.16 | 81.35 | 78.07 | 68.10 | 55.20 | 49.77 | 63.82 | |||||||||||||
| 1981 | 48.32 | 53.36 | 57.97 | 63.50 | 66.00 | 72.83 | 80.90 | 85.45 | 77.57 | 62.29 | 54.00 | 48.39 | 64.21 | |||||||||||||
| 1982 | 44.61 | 51.50 | 55.26 | 59.77 | 70.87 | 75.53 | 79.32 | 82.23 | 76.60 | 63.55 | 50.20 | 45.77 | 62.93 | |||||||||||||
| 1983 | 48.94 | 52.00 | 56.32 | 63.47 | 69.52 | 72.27 | 75.58 | 79.84 | 73.77 | 64.58 | 52.80 | 42.74 | 62.65 | |||||||||||||
| 1984 | 49.61 | 52.83 | 60.03 | 59.17 | 66.39 | 71.77 | 84.13 | 82.48 | 76.63 | 59.90 | 50.57 | 43.94 | 63.12 | |||||||||||||
| 1985 | 43.16 | 51.11 | 54.29 | 66.03 | 69.45 | 77.37 | 88.81 | 81.77 | 72.33 | 64.16 | 45.13 | 42.03 | 62.97 | |||||||||||||
| 1986 | 50.45 | 50.93 | a | 61.97 | 61.60 | 68.26 | 78.37 | 78.97 | 88.68 | 71.13 | 68.00 | 53.33 | 46.55 | 64.85 | ||||||||||||
| 1987 | 46.42 | 52.79 | 57.94 | 69.00 | 74.23 | i | 80.37 | 77.58 | 86.77 | 79.70 | 72.68 | 54.00 | 43.77 | 65.55 | ||||||||||||
| 1988 | 45.71 | 55.62 | 59.00 | 63.23 | 66.29 | 73.87 | 84.35 | 85.06 | 82.07 | 69.06 | 53.23 | 47.29 | 65.40 | |||||||||||||
| 1989 | 48.94 | 45.14 | 54.90 | 69.17 | 68.77 | 76.33 | 79.48 | 81.19 | 83.20 | 66.29 | 54.93 | 46.29 | 64.55 | |||||||||||||
| 1990 | 48.87 | 49.86 | 60.42 | 66.87 | 67.81 | 74.13 | ----- | z | ----- | z | ----- | z | 62.39 | 52.60 | 41.23 | 58.24 | ||||||||||
| 1991 | 47.10 | 57.04 | 53.55 | 59.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.27 | |||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 46.63 | 51.91 | 56.99 | 62.00 | 68.41 | 74.89 | 82.06 | 82.62 | 76.62 | 65.16 | 52.42 | 46.03 | 63.77 | |||||||||||||
| S.D. | 2.75 | 3.03 | 2.88 | 3.45 | 2.23 | 2.65 | 2.87 | 3.19 | 3.85 | 3.18 | 2.40 | 2.59 | 0.94 | |||||||||||||
| SKEW | -0.80 | -0.04 | 0.02 | 0.38 | -0.13 | -0.19 | 0.02 | 0.76 | 0.37 | 0.28 | -1.11 | -0.13 | 0.08 | |||||||||||||
| MAX | 50.45 | 57.97 | 61.97 | 69.17 | 73.06 | 80.37 | 88.81 | 90.90 | 84.63 | 72.68 | 55.70 | 49.94 | 65.65 | |||||||||||||
| MIN | 39.39 | 45.14 | 51.35 | 56.63 | 63.23 | 69.07 | 75.58 | 77.90 | 71.07 | 59.90 | 45.13 | 41.23 | 61.55 | |||||||||||||
| NO YRS | 27 | 27 | 27 | 28 | 26 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 24 | |||||||||||||