| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 17.4 | 24.7 | 34.7 | 44.7 | 57.4 | 67.2 | 70.2 | 66.4 | 56.6 | 40.3 | 24.5 | 17.9 | 43.5 |
| Highest Mean Max. Temperature (F) | 32.3 | 35.6 | 41.3 | 50.4 | 65.0 | 73.4 | 75.6 | 70.9 | 60.3 | 45.6 | 33.8 | 28.2 | 75.6 |
| Year Highest Occurred | 1981 | 1977 | 1984 | 1993 | 1993 | 1997 | 1997 | 1974 | 1984 | 1986 | 1976 | 1985 | 1997 |
| Lowest Mean Max. Temperature (F) | 3.3 | 8.4 | 24.3 | 36.8 | 48.9 | 61.5 | 66.3 | 60.3 | 49.9 | 31.3 | 17.3 | -0.4 | -0.4 |
| Year Lowest Occurred | 1971 | 1990 | 1972 | 1972 | 1971 | 1980 | 1981 | 1986 | 1992 | 1982 | 1977 | 1980 | 1980 |
| Mean Temperature (F) | 8.3 | 13.5 | 22.0 | 33.9 | 45.6 | 54.8 | 58.3 | 55.1 | 45.7 | 31.2 | 15.7 | 9.4 | 32.8 |
| Highest Mean Temperature (F) | 28.0 | 26.7 | 31.5 | 39.1 | 53.3 | 58.7 | 62.8 | 58.3 | 52.2 | 38.2 | 26.2 | 22.7 | 62.8 |
| Year Highest Occurred | 1981 | 1997 | 1984 | 1993 | 1993 | 1997 | 1993 | 1994 | 1995 | 1979 | 1976 | 1985 | 1993 |
| Lowest Mean Temperature (F) | -8.2 | -6.5 | 12.5 | 21.6 | 41.2 | 50.6 | 55.5 | 50.3 | 37.9 | 22.3 | 4.9 | -10.2 | -10.2 |
| Year Lowest Occurred | 1971 | 1990 | 1972 | 1972 | 1992 | 1985 | 1982 | 1986 | 1992 | 1982 | 1985 | 1980 | 1980 |
| Mean Min. Temperature (F) | -0.8 | 2.2 | 9.3 | 23.0 | 33.7 | 42.4 | 46.3 | 43.8 | 34.7 | 22.1 | 6.8 | 0.8 | 22.0 |
| Highest Mean Min. Temperature (F) | 23.6 | 18.5 | 22.3 | 28.5 | 41.5 | 45.9 | 51.3 | 48.2 | 44.9 | 32.4 | 19.0 | 17.1 | 51.3 |
| Year Highest Occurred | 1981 | 1997 | 1981 | 1994 | 1993 | 1988 | 1993 | 1993 | 1995 | 1979 | 1979 | 1985 | 1993 |
| Lowest Mean Min. Temperature (F) | -19.7 | -21.4 | -2.3 | 6.4 | 28.3 | 38.5 | 41.8 | 39.4 | 25.8 | 11.4 | -7.9 | -20.1 | -21.4 |
| Year Lowest Occurred | 1971 | 1990 | 1995 | 1972 | 1982 | 1986 | 1986 | 2000 | 1992 | 1996 | 1985 | 1980 | 1990 |
| Mean Precipitation (in.) | 2.02 | 1.70 | 1.00 | 0.99 | 1.24 | 1.48 | 1.95 | 3.26 | 4.07 | 3.13 | 2.45 | 3.14 | 26.43 |
| Highest Precipitation (in.) | 6.65 | 3.89 | 3.17 | 3.08 | 3.44 | 3.57 | 4.25 | 8.79 | 7.98 | 7.78 | 7.74 | 9.91 | 9.91 |
| Year Highest Occurred | 1990 | 2000 | 1994 | 1983 | 1995 | 1980 | 1980 | 1989 | 1982 | 1986 | 1976 | 1987 | 1987 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 0.23 | 0.48 | 0.64 | 1.91 | 0.68 | 0.12 | 0.69 | 0.00 |
| Year Lowest Occurred | 1996 | 1979 | 1987 | 2000 | 1992 | 1986 | 1993 | 1972 | 2000 | 1997 | 1975 | 1972 | 1996 |
| Heating Degree Days (F) | 1760. | 1444. | 1334. | 934. | 602. | 308. | 214. | 309. | 580. | 1049. | 1480. | 1726. | 11740. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 3. | 5. | 1. | 0. | 0. | 0. | 0. | 9. |