| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.5 | 41.6 | 46.0 | 53.3 | 62.8 | 73.2 | 77.5 | 75.1 | 68.9 | 59.6 | 46.0 | 39.0 | 56.8 |
| Highest Mean Max. Temperature (F) | 45.9 | 48.2 | 53.3 | 61.9 | 70.8 | 78.3 | 81.5 | 79.9 | 74.2 | 64.6 | 56.4 | 47.8 | 81.5 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1993 | 2000 | 1994 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 29.9 | 36.6 | 40.0 | 45.8 | 57.7 | 68.5 | 73.2 | 71.9 | 64.7 | 50.0 | 38.0 | 31.9 | 29.9 |
| Year Lowest Occurred | 1979 | 1985 | 1973 | 1983 | 1983 | 1995 | 1990 | 1987 | 1986 | 1984 | 1992 | 1983 | 1979 |
| Mean Temperature (F) | 20.7 | 23.9 | 30.1 | 37.1 | 45.7 | 54.5 | 59.2 | 57.5 | 50.6 | 40.7 | 29.2 | 21.2 | 39.2 |
| Highest Mean Temperature (F) | 26.7 | 30.4 | 35.7 | 42.9 | 52.6 | 58.4 | 62.6 | 61.8 | 54.8 | 43.9 | 36.1 | 30.2 | 62.6 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1981 | 2000 | 1994 | 2000 | 2000 | 1998 | 1979 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 12.6 | 19.1 | 26.1 | 30.8 | 41.5 | 51.1 | 56.6 | 55.0 | 48.0 | 34.5 | 21.5 | 15.8 | 12.6 |
| Year Lowest Occurred | 1979 | 1985 | 1980 | 1983 | 1983 | 1983 | 1990 | 1974 | 1971 | 1984 | 2000 | 1978 | 1979 |
| Mean Min. Temperature (F) | 2.9 | 6.2 | 14.1 | 20.8 | 28.6 | 35.7 | 40.8 | 39.8 | 32.3 | 21.7 | 12.4 | 3.3 | 21.6 |
| Highest Mean Min. Temperature (F) | 8.9 | 14.0 | 18.9 | 26.3 | 34.4 | 39.8 | 44.6 | 43.6 | 37.5 | 24.6 | 19.6 | 12.5 | 44.6 |
| Year Highest Occurred | 1999 | 2000 | 1989 | 1981 | 2000 | 1988 | 1998 | 2000 | 1997 | 1992 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | -4.6 | -0.4 | 10.0 | 15.7 | 23.8 | 32.5 | 38.4 | 35.8 | 28.7 | 17.5 | 4.7 | -2.3 | -4.6 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1973 | 1990 | 1975 | 1972 | 1974 | 1971 | 1976 | 2000 | 1978 | 1979 |
| Mean Precipitation (in.) | 0.29 | 0.30 | 0.81 | 1.06 | 1.61 | 1.41 | 2.73 | 3.02 | 1.47 | 0.84 | 0.61 | 0.27 | 14.42 |
| Highest Precipitation (in.) | 1.30 | 0.77 | 2.86 | 2.47 | 3.75 | 4.11 | 5.65 | 6.65 | 3.64 | 2.92 | 1.68 | 0.74 | 6.65 |
| Year Highest Occurred | 2000 | 1987 | 1992 | 1999 | 1973 | 1995 | 1991 | 1984 | 1976 | 1984 | 1991 | 1993 | 1984 |
| Lowest Precipitation (in.) | 0.04 | 0.00 | 0.11 | 0.19 | 0.08 | 0.03 | 0.84 | 0.93 | 0.28 | 0.12 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1977 | 1990 | 1999 | 1981 | 1974 | 1990 | 1994 | 1985 | 1992 | 1988 | 1989 | 1980 | 1990 |
| Heating Degree Days (F) | 1373. | 1151. | 1084. | 838. | 599. | 316. | 184. | 236. | 431. | 755. | 1076. | 1360. | 9403. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 2. | 1. | 0. | 0. | 0. | 0. | 3. |