| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.9 | 45.9 | 56.2 | 64.6 | 74.6 | 86.4 | 91.9 | 89.5 | 80.6 | 67.5 | 51.3 | 40.5 | 65.6 |
| Highest Mean Max. Temperature (F) | 49.2 | 55.7 | 64.9 | 72.3 | 80.8 | 92.5 | 96.2 | 94.0 | 85.2 | 73.6 | 59.6 | 51.3 | 96.2 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1992 | 2000 | 1994 | 1994 | 1985 | 1979 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 24.9 | 33.9 | 49.5 | 58.1 | 68.2 | 80.6 | 87.9 | 86.2 | 75.1 | 58.4 | 44.5 | 28.2 | 24.9 |
| Year Lowest Occurred | 1973 | 1974 | 1979 | 1973 | 1995 | 1975 | 1992 | 1987 | 1986 | 1984 | 1979 | 1978 | 1973 |
| Mean Temperature (F) | 27.4 | 34.8 | 44.4 | 51.9 | 61.3 | 71.8 | 77.5 | 75.4 | 66.5 | 54.0 | 39.9 | 30.0 | 52.9 |
| Highest Mean Temperature (F) | 36.7 | 43.7 | 50.3 | 59.1 | 67.3 | 77.2 | 81.0 | 79.2 | 70.2 | 59.2 | 45.8 | 39.6 | 81.0 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1992 | 2000 | 1994 | 2000 | 2000 | 1983 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 13.3 | 20.8 | 39.6 | 46.1 | 56.2 | 66.5 | 74.6 | 72.2 | 62.4 | 47.9 | 33.3 | 18.5 | 13.3 |
| Year Lowest Occurred | 1973 | 1974 | 1976 | 1975 | 1975 | 1975 | 1992 | 1987 | 1971 | 1984 | 1979 | 1978 | 1973 |
| Mean Min. Temperature (F) | 16.8 | 23.6 | 32.5 | 39.2 | 48.0 | 57.1 | 63.1 | 61.3 | 52.4 | 40.5 | 28.5 | 19.4 | 40.2 |
| Highest Mean Min. Temperature (F) | 25.2 | 31.6 | 37.2 | 45.8 | 53.7 | 61.9 | 66.1 | 65.2 | 56.0 | 44.7 | 32.0 | 27.9 | 66.1 |
| Year Highest Occurred | 1999 | 1995 | 1978 | 1992 | 2000 | 1994 | 1998 | 1994 | 1990 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 1.6 | 7.8 | 26.6 | 33.7 | 43.0 | 52.4 | 60.2 | 56.9 | 47.7 | 34.5 | 22.1 | 8.7 | 1.6 |
| Year Lowest Occurred | 1973 | 1974 | 1977 | 1975 | 1983 | 1975 | 1987 | 1978 | 1971 | 1976 | 1979 | 1978 | 1973 |
| Mean Precipitation (in.) | 0.53 | 0.47 | 0.93 | 0.85 | 1.09 | 0.48 | 0.79 | 0.74 | 0.85 | 0.98 | 0.80 | 0.55 | 9.06 |
| Highest Precipitation (in.) | 1.40 | 1.34 | 2.12 | 2.55 | 3.00 | 1.86 | 2.08 | 2.01 | 3.38 | 3.28 | 2.77 | 2.28 | 3.38 |
| Year Highest Occurred | 1973 | 1980 | 1987 | 1997 | 1992 | 1983 | 1997 | 1993 | 1997 | 1972 | 1983 | 1983 | 1997 |
| Lowest Precipitation (in.) | 0.06 | 0.00 | 0.02 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1981 | 1972 | 1989 | 1974 | 1980 | 1994 | 1985 | 1979 | 1988 | 1989 | 1976 | 1981 |
| Heating Degree Days (F) | 1168. | 847. | 642. | 401. | 164. | 21. | 0. | 1. | 56. | 348. | 754. | 1087. | 5489. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 49. | 223. | 389. | 323. | 100. | 7. | 0. | 0. | 1098. |