| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 30.2 | 32.4 | 36.6 | 42.5 | 52.1 | 63.4 | 68.3 | 66.5 | 60.0 | 50.0 | 37.1 | 31.9 | 47.6 |
| Highest Mean Max. Temperature (F) | 37.5 | 38.0 | 42.8 | 49.8 | 58.4 | 68.6 | 72.9 | 70.0 | 65.1 | 53.6 | 48.5 | 41.0 | 72.9 |
| Year Highest Occurred | 1986 | 1995 | 1997 | 2000 | 2000 | 1994 | 1978 | 1995 | 1998 | 1973 | 1999 | 1980 | 1978 |
| Lowest Mean Max. Temperature (F) | 22.0 | 27.6 | 31.2 | 35.4 | 45.4 | 58.9 | 65.4 | 64.0 | 55.5 | 40.5 | 30.8 | 25.5 | 22.0 |
| Year Lowest Occurred | 1979 | 1971 | 1973 | 1983 | 1995 | 1982 | 1985 | 1972 | 1985 | 1984 | 1979 | 1983 | 1979 |
| Mean Temperature (F) | 18.5 | 20.4 | 24.6 | 31.0 | 40.6 | 50.3 | 55.1 | 53.6 | 46.9 | 37.7 | 25.4 | 20.5 | 35.4 |
| Highest Mean Temperature (F) | 25.2 | 26.7 | 29.3 | 38.6 | 46.0 | 55.1 | 59.3 | 57.8 | 51.6 | 41.4 | 36.0 | 30.0 | 59.3 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1974 | 1977 | 1980 | 2000 | 1998 | 1978 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 11.1 | 15.6 | 19.7 | 24.8 | 35.8 | 46.5 | 50.9 | 50.0 | 42.5 | 29.9 | 18.2 | 15.8 | 11.1 |
| Year Lowest Occurred | 1979 | 1975 | 1988 | 1983 | 1983 | 1992 | 1995 | 1997 | 1996 | 1984 | 1979 | 1983 | 1979 |
| Mean Min. Temperature (F) | 6.8 | 8.4 | 12.5 | 19.5 | 29.0 | 37.2 | 41.8 | 40.6 | 33.8 | 25.4 | 13.7 | 9.0 | 23.1 |
| Highest Mean Min. Temperature (F) | 13.5 | 15.8 | 19.5 | 27.7 | 34.3 | 41.7 | 45.7 | 46.1 | 39.0 | 29.9 | 23.5 | 19.0 | 46.1 |
| Year Highest Occurred | 2000 | 2000 | 1972 | 1981 | 1974 | 1977 | 2000 | 2000 | 1977 | 1978 | 1999 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | 0.2 | 1.4 | 6.8 | 13.2 | 23.8 | 32.2 | 35.6 | 34.6 | 27.7 | 18.6 | 5.5 | 0.4 | 0.2 |
| Year Lowest Occurred | 1979 | 1997 | 1996 | 1995 | 1997 | 1997 | 1995 | 1997 | 1996 | 1997 | 1979 | 1997 | 1979 |
| Mean Precipitation (in.) | 0.68 | 0.84 | 1.62 | 2.49 | 2.09 | 1.78 | 2.53 | 2.74 | 1.59 | 1.19 | 1.10 | 0.78 | 19.43 |
| Highest Precipitation (in.) | 2.85 | 1.76 | 3.45 | 8.55 | 5.34 | 4.93 | 4.48 | 5.45 | 4.01 | 3.09 | 2.61 | 2.22 | 8.55 |
| Year Highest Occurred | 1996 | 1989 | 1992 | 1999 | 1995 | 1992 | 1984 | 1984 | 1993 | 1984 | 1983 | 1973 | 1999 |
| Lowest Precipitation (in.) | 0.02 | 0.02 | 0.49 | 0.37 | 0.04 | 0.02 | 0.64 | 0.51 | 0.17 | 0.29 | 0.18 | 0.10 | 0.02 |
| Year Lowest Occurred | 1995 | 1973 | 1989 | 1981 | 1974 | 1971 | 1978 | 1985 | 1979 | 2000 | 2000 | 1991 | 1995 |
| Heating Degree Days (F) | 1441. | 1249. | 1239. | 1020. | 758. | 441. | 309. | 355. | 543. | 846. | 1187. | 1381. | 10769. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |