| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1980 | ----- | z | ----- | z | ----- | z | ----- | z | 49.82 | 53.37 | 64.32 | 58.55 | 57.18 | 47.42 | 40.47 | a | 38.68 | 51.23 | ||||||||
| 1981 | 33.11 | d | 37.00 | 39.66 | 44.33 | 49.47 | 55.65 | 60.73 | 65.42 | 56.95 | a | 45.70 | a | 40.00 | 34.32 | 46.86 | ||||||||||
| 1982 | 27.39 | 34.52 | a | 38.19 | 40.47 | 48.23 | 58.63 | 61.77 | 62.31 | 53.63 | 45.60 | 35.27 | 30.98 | 44.75 | ||||||||||||
| 1983 | 37.55 | 39.09 | 42.18 | 41.20 | 52.02 | 55.22 | 59.90 | 65.23 | 52.72 | 48.92 | 40.38 | 23.03 | 46.45 | |||||||||||||
| 1984 | 33.61 | 38.17 | 42.03 | 41.40 | 48.68 | 53.92 | 63.31 | 63.27 | 53.65 | 43.02 | 36.72 | 28.76 | 45.54 | |||||||||||||
| 1985 | 29.10 | a | 32.02 | 37.21 | 47.13 | 50.92 | 59.02 | 69.10 | 62.08 | 51.98 | a | 46.98 | 26.98 | 24.65 | 44.76 | |||||||||||
| 1986 | 36.37 | 36.02 | 44.55 | 41.70 | 51.60 | 62.43 | 59.26 | 66.94 | 51.05 | 48.58 | 41.35 | 31.97 | 47.65 | |||||||||||||
| 1987 | 31.65 | 36.70 | 40.71 | 49.47 | a | 54.76 | 61.67 | 61.66 | 62.55 | 58.30 | 51.29 | 40.31 | a | 31.55 | 48.38 | |||||||||||
| 1988 | 31.66 | 38.53 | 40.15 | 47.87 | 49.79 | 57.92 | 65.31 | 63.39 | 57.07 | 55.06 | 39.75 | 33.50 | 48.33 | |||||||||||||
| 1989 | 34.37 | 24.86 | 40.77 | 48.47 | 49.50 | 59.82 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.96 | |||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 32.76 | 35.21 | 40.61 | 44.67 | 50.48 | 57.76 | 62.82 | 63.30 | 54.73 | 48.06 | 37.91 | 30.83 | 46.59 | |||||||||||||
| S.D. | 3.24 | 4.46 | 2.19 | 3.59 | 1.92 | 3.14 | 3.08 | 2.42 | 2.66 | 3.52 | 4.55 | 4.82 | 1.48 | |||||||||||||
| SKEW | -0.17 | -1.52 | 0.17 | 0.10 | 1.05 | 0.02 | 0.83 | -0.42 | 0.02 | 0.67 | -1.72 | -0.20 | -0.05 | |||||||||||||
| MAX | 37.55 | 39.09 | 44.55 | 49.47 | 54.76 | 62.43 | 69.10 | 66.94 | 58.30 | 55.06 | 41.35 | 38.68 | 48.38 | |||||||||||||
| MIN | 27.39 | 24.86 | 37.21 | 40.47 | 48.23 | 53.37 | 59.26 | 58.55 | 51.05 | 43.02 | 26.98 | 23.03 | 44.75 | |||||||||||||
| NO YRS | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | |||||||||||||