| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1973 | ----- | z | ----- | z | ----- | z | 36.32 | h | 40.55 | i | 47.71 | i | 50.24 | j | 45.62 | g | 48.13 | g | 39.85 | d | 35.27 | h | 36.87 | h | 39.85 | |
| 1974 | 28.52 | j | 32.95 | i | 34.39 | h | 38.73 | 41.16 | 47.17 | 51.19 | 51.00 | 49.67 | c | 40.29 | 38.17 | 36.81 | 43.80 | |||||||||
| 1975 | 35.13 | 33.43 | 34.58 | 35.27 | 43.32 | 48.03 | 53.48 | 50.29 | 49.97 | 43.94 | 35.87 | 35.32 | 41.55 | |||||||||||||
| 1976 | 33.35 | 31.93 | 33.03 | 37.40 | 42.55 | 45.50 | 50.10 | 52.58 | 51.17 | 42.03 | 38.30 | 32.06 | 40.83 | |||||||||||||
| 1977 | 28.65 | 33.93 | 33.94 | 38.97 | 41.23 | 47.70 | 49.16 | 54.68 | 48.20 | 41.61 | 35.63 | 37.29 | c | 40.91 | ||||||||||||
| 1978 | 34.93 | c | 37.82 | 37.97 | 40.23 | 42.52 | 51.37 | 53.90 | 54.55 | 50.73 | 44.03 | 32.20 | 29.13 | 42.45 | ||||||||||||
| 1979 | 25.10 | 33.54 | 38.26 | 41.27 | 45.32 | 48.47 | 53.35 | 52.71 | 52.54 | b | 47.06 | 37.73 | 38.39 | 42.81 | ||||||||||||
| 1980 | 29.16 | 34.07 | b | 35.94 | 41.24 | a | 44.03 | 47.47 | 51.84 | 48.58 | 48.40 | 44.87 | 41.47 | 35.81 | 41.91 | |||||||||||
| 1981 | 36.06 | 34.86 | 36.87 | 39.53 | 44.32 | 48.40 | 51.74 | 54.52 | 48.90 | 42.90 | 40.03 | 36.58 | 42.89 | |||||||||||||
| 1982 | 31.35 | 33.54 | 34.71 | 35.70 | 42.42 | 50.60 | 51.81 | 53.06 | 50.07 | 43.90 | 36.07 | 34.23 | 41.45 | |||||||||||||
| 1983 | 37.42 | 39.89 | 40.61 | 39.17 | 45.45 | 49.10 | 52.23 | 52.97 | 47.27 | 42.23 | 41.83 | 30.23 | 43.20 | |||||||||||||
| 1984 | 34.68 | 36.00 | 40.03 | 38.57 | 42.19 | 47.37 | 50.77 | 51.74 | 50.00 | 42.65 | 39.03 | 30.55 | 41.96 | |||||||||||||
| 1985 | 28.65 | 30.64 | 33.94 | 40.63 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.46 | |||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 32.23 | 34.51 | 36.35 | 38.89 | 43.14 | 48.29 | 51.78 | 52.43 | 49.72 | 42.95 | 37.85 | 34.22 | 42.00 | |||||||||||||
| S.D. | 3.89 | 2.60 | 2.59 | 1.96 | 1.49 | 1.63 | 1.45 | 1.91 | 1.49 | 1.99 | 2.82 | 3.21 | 0.83 | |||||||||||||
| SKEW | -0.40 | 0.70 | 0.39 | -0.63 | 0.28 | 0.42 | -0.20 | -0.57 | 0.18 | 0.33 | -0.38 | -0.37 | 0.00 | |||||||||||||
| MAX | 37.42 | 39.89 | 40.61 | 41.27 | 45.45 | 51.37 | 53.90 | 54.68 | 52.54 | 47.06 | 41.83 | 38.39 | 43.20 | |||||||||||||
| MIN | 25.10 | 30.64 | 33.03 | 35.27 | 41.16 | 45.50 | 49.16 | 48.58 | 47.27 | 39.85 | 32.20 | 29.13 | 40.83 | |||||||||||||
| NO YRS | 11 | 11 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 10 | |||||||||||||