| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1973 | ----- | z | ----- | z | ----- | z | 49.27 | h | 55.79 | l | 62.12 | j | 65.16 | l | 62.33 | g | 61.50 | g | 50.65 | d | 41.50 | j | 42.77 | i | 50.65 | |
| 1974 | 35.92 | k | 40.39 | i | 43.63 | h | 48.33 | 51.95 | 61.30 | 64.29 | 67.10 | 66.43 | c | 54.94 | 46.33 | 42.58 | 55.92 | |||||||||
| 1975 | 40.31 | 39.64 | 43.35 | 45.10 | 55.05 | 60.22 | 66.81 | 62.79 | 65.02 | 51.34 | 42.68 | 41.24 | 51.13 | |||||||||||||
| 1976 | 40.15 | 40.29 | 41.74 | 47.32 | 54.34 | 57.20 | 63.44 | 63.65 | 63.23 | 53.61 | 46.87 | 37.53 | 50.78 | |||||||||||||
| 1977 | 36.56 | 43.30 | 42.21 | 51.13 | 51.21 | 60.82 | 63.05 | 69.72 | a | 58.35 | 51.47 | 42.22 | 42.14 | c | 51.01 | |||||||||||
| 1978 | 38.81 | e | 43.71 | 47.94 | 49.58 | 53.21 | 63.53 | 67.60 | 67.21 | 59.58 | 55.76 | 40.18 | 35.40 | 51.88 | ||||||||||||
| 1979 | 31.68 | 39.43 | 48.42 | 50.67 | 57.06 | 62.57 | 67.58 | 65.56 | 64.32 | b | 56.55 | 44.85 | 43.81 | 52.71 | ||||||||||||
| 1980 | 36.32 | 41.24 | b | 44.26 | 51.90 | a | 54.68 | 57.13 | 65.74 | 63.63 | 61.63 | 55.56 | 47.10 | 41.79 | 51.75 | |||||||||||
| 1981 | 43.60 | 42.77 | 47.26 | 49.57 | 54.47 | 58.80 | 65.23 | 69.82 | 62.38 | 52.44 | 47.57 | 41.71 | 52.97 | |||||||||||||
| 1982 | 36.53 | 40.73 | 44.66 | 46.28 | 55.15 | 62.87 | 64.74 | 66.03 | 61.58 | 53.26 | 43.05 | 40.08 | 51.25 | |||||||||||||
| 1983 | 42.68 | 45.48 | 48.19 | 50.10 | 57.50 | 59.22 | 62.65 | 65.34 | 59.70 | 52.53 | 46.97 | 34.65 | 52.08 | |||||||||||||
| 1984 | 41.21 | 43.62 | 48.52 | 48.00 | 52.73 | 58.48 | 65.63 | 66.02 | 61.18 | 50.27 | 44.53 | 36.03 | 51.35 | |||||||||||||
| 1985 | 36.45 | 38.75 | 43.52 | 51.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.52 | |||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 38.57 | 41.73 | 45.46 | 49.11 | 54.30 | 60.19 | 65.16 | 66.08 | 62.13 | 53.20 | 44.76 | 39.72 | 51.69 | |||||||||||||
| S.D. | 3.46 | 2.17 | 2.64 | 2.13 | 1.95 | 2.23 | 1.73 | 2.31 | 2.47 | 2.11 | 2.45 | 3.23 | 0.73 | |||||||||||||
| SKEW | -0.36 | 0.22 | -0.05 | -0.48 | 0.11 | 0.07 | 0.03 | 0.31 | 0.21 | 0.19 | -0.48 | -0.46 | 0.57 | |||||||||||||
| MAX | 43.60 | 45.48 | 48.52 | 51.90 | 57.50 | 63.53 | 67.60 | 69.82 | 66.43 | 56.55 | 47.57 | 43.81 | 52.97 | |||||||||||||
| MIN | 31.68 | 38.75 | 41.74 | 45.10 | 51.21 | 57.13 | 62.65 | 62.79 | 58.35 | 50.27 | 40.18 | 34.65 | 50.78 | |||||||||||||
| NO YRS | 11 | 11 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 10 | |||||||||||||