| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.0 | 46.2 | 55.0 | 63.0 | 72.3 | 83.1 | 88.7 | 86.6 | 78.2 | 66.0 | 49.7 | 41.3 | 64.2 |
| Highest Mean Max. Temperature (F) | 48.8 | 55.4 | 63.4 | 70.6 | 78.2 | 89.0 | 92.8 | 91.7 | 85.5 | 71.6 | 61.2 | 53.9 | 92.8 |
| Year Highest Occurred | 1981 | 1999 | 1986 | 1981 | 1974 | 1994 | 2000 | 1995 | 1998 | 1975 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 26.4 | 33.0 | 47.4 | 54.9 | 61.0 | 77.1 | 83.9 | 82.0 | 72.4 | 58.0 | 38.7 | 26.3 | 26.3 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1984 | 1995 | 1995 | 1992 | 1992 | 1985 | 1984 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 27.8 | 33.6 | 41.5 | 49.4 | 58.9 | 68.7 | 74.0 | 72.1 | 63.2 | 51.5 | 37.6 | 29.3 | 50.6 |
| Highest Mean Temperature (F) | 35.2 | 40.9 | 47.7 | 55.6 | 63.5 | 73.6 | 76.8 | 75.9 | 69.1 | 55.3 | 45.1 | 39.1 | 76.8 |
| Year Highest Occurred | 1999 | 1999 | 1986 | 1981 | 1994 | 1994 | 1980 | 1983 | 1998 | 1973 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 16.0 | 22.0 | 35.8 | 43.1 | 51.7 | 64.0 | 70.6 | 68.5 | 58.3 | 46.5 | 28.0 | 16.8 | 16.0 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1983 | 1995 | 1995 | 1992 | 1992 | 1971 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 15.6 | 20.9 | 28.0 | 35.8 | 45.4 | 54.2 | 59.3 | 57.5 | 48.2 | 36.9 | 25.4 | 17.2 | 37.0 |
| Highest Mean Min. Temperature (F) | 24.6 | 28.2 | 32.1 | 40.8 | 48.8 | 58.1 | 61.6 | 61.3 | 53.4 | 40.3 | 30.4 | 24.3 | 61.6 |
| Year Highest Occurred | 1999 | 1992 | 1992 | 1992 | 1994 | 1994 | 1980 | 1983 | 1990 | 1973 | 1998 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 5.6 | 11.0 | 22.7 | 31.3 | 41.4 | 50.1 | 57.1 | 54.1 | 43.8 | 32.4 | 17.2 | 7.3 | 5.6 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1983 | 1983 | 1998 | 1995 | 1978 | 1971 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.53 | 0.38 | 1.16 | 1.81 | 2.55 | 1.80 | 1.42 | 1.18 | 1.19 | 0.89 | 0.84 | 0.47 | 14.22 |
| Highest Precipitation (in.) | 1.44 | 1.52 | 4.13 | 7.41 | 5.36 | 4.00 | 3.41 | 3.89 | 3.36 | 2.92 | 2.29 | 1.11 | 7.41 |
| Year Highest Occurred | 1980 | 1987 | 1990 | 1999 | 1981 | 1995 | 1989 | 1979 | 1971 | 1984 | 1983 | 1979 | 1999 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.09 | 0.18 | 0.10 | 0.21 | 0.02 | 0.12 | 0.00 | 0.03 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1975 | 1991 | 1978 | 1982 | 1974 | 1990 | 2000 | 1973 | 1992 | 1988 | 1989 | 1996 | 1991 |
| Heating Degree Days (F) | 1153. | 881. | 728. | 470. | 220. | 45. | 1. | 8. | 122. | 420. | 824. | 1108. | 5980. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 29. | 154. | 279. | 227. | 68. | 0. | 0. | 0. | 759. |