| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.7 | 36.1 | 42.9 | 51.0 | 58.7 | 65.0 | 68.8 | 67.2 | 61.8 | 53.5 | 45.0 | 37.7 | 51.8 |
| Highest Mean Max. Temperature (F) | 45.6 | 43.4 | 49.4 | 56.1 | 64.7 | 69.1 | 74.2 | 71.4 | 67.1 | 58.2 | 52.5 | 45.7 | 74.2 |
| Year Highest Occurred | 1974 | 1976 | 2000 | 1981 | 2000 | 2000 | 1993 | 1980 | 1998 | 2000 | 1985 | 1984 | 1993 |
| Lowest Mean Max. Temperature (F) | 20.3 | 27.3 | 36.0 | 44.7 | 53.9 | 59.7 | 64.8 | 62.3 | 58.5 | 47.1 | 37.8 | 28.5 | 20.3 |
| Year Lowest Occurred | 1977 | 1978 | 1996 | 1983 | 1997 | 1997 | 1979 | 1992 | 1982 | 1988 | 1976 | 1989 | 1977 |
| Mean Temperature (F) | 25.7 | 28.2 | 34.8 | 43.3 | 52.1 | 58.9 | 62.8 | 61.6 | 56.1 | 46.5 | 37.7 | 29.9 | 44.8 |
| Highest Mean Temperature (F) | 38.6 | 34.8 | 41.1 | 48.1 | 57.4 | 62.4 | 67.2 | 64.9 | 59.6 | 52.3 | 46.3 | 38.4 | 67.2 |
| Year Highest Occurred | 1974 | 1990 | 2000 | 1994 | 2000 | 1981 | 1993 | 1980 | 1998 | 1984 | 1985 | 1984 | 1993 |
| Lowest Mean Temperature (F) | 11.4 | 19.3 | 28.6 | 37.6 | 47.2 | 54.4 | 59.5 | 57.8 | 53.4 | 40.1 | 29.4 | 20.8 | 11.4 |
| Year Lowest Occurred | 1977 | 1978 | 1971 | 1983 | 1997 | 1974 | 1979 | 1992 | 1982 | 1988 | 1976 | 1989 | 1977 |
| Mean Min. Temperature (F) | 17.7 | 20.2 | 26.7 | 35.6 | 45.4 | 52.7 | 56.8 | 55.9 | 50.3 | 39.5 | 30.3 | 22.1 | 37.8 |
| Highest Mean Min. Temperature (F) | 31.6 | 26.9 | 32.8 | 40.2 | 51.1 | 55.8 | 60.1 | 58.6 | 53.9 | 46.9 | 40.1 | 31.1 | 60.1 |
| Year Highest Occurred | 1974 | 1990 | 2000 | 1994 | 1991 | 1981 | 1993 | 1995 | 1980 | 1984 | 1985 | 1984 | 1993 |
| Lowest Mean Min. Temperature (F) | 2.4 | 11.2 | 19.7 | 30.4 | 40.5 | 48.0 | 53.6 | 53.2 | 47.1 | 33.1 | 21.0 | 13.0 | 2.4 |
| Year Lowest Occurred | 1977 | 1978 | 1971 | 1983 | 1997 | 1974 | 1976 | 1992 | 1976 | 1988 | 1976 | 1989 | 1977 |
| Mean Precipitation (in.) | 4.77 | 4.79 | 5.78 | 5.06 | 6.03 | 6.57 | 5.40 | 5.44 | 5.68 | 4.55 | 4.65 | 4.04 | 62.76 |
| Highest Precipitation (in.) | 12.01 | 13.39 | 10.66 | 10.80 | 9.66 | 12.80 | 11.90 | 11.30 | 20.10 | 13.30 | 12.98 | 7.43 | 20.10 |
| Year Highest Occurred | 1998 | 1998 | 1979 | 1987 | 1976 | 1976 | 1989 | 1994 | 1979 | 1971 | 1977 | 1986 | 1979 |
| Lowest Precipitation (in.) | 1.64 | 1.55 | 1.50 | 0.69 | 2.81 | 0.69 | 1.76 | 1.01 | 0.84 | 0.49 | 1.65 | 1.40 | 0.49 |
| Year Lowest Occurred | 1984 | 1988 | 1986 | 1975 | 1997 | 1986 | 1977 | 1981 | 1984 | 2000 | 1976 | 1984 | 2000 |
| Heating Degree Days (F) | 1219. | 1033. | 936. | 651. | 404. | 195. | 97. | 126. | 270. | 575. | 820. | 1089. | 7415. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 11. | 29. | 20. | 1. | 0. | 0. | 0. | 64. |