| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.2 | 37.3 | 47.7 | 57.1 | 66.9 | 77.7 | 86.7 | 85.8 | 74.7 | 61.5 | 44.6 | 33.7 | 58.8 |
| Highest Mean Max. Temperature (F) | 39.8 | 46.5 | 55.9 | 66.5 | 74.4 | 85.2 | 92.2 | 90.3 | 82.2 | 71.0 | 55.5 | 41.2 | 92.2 |
| Year Highest Occurred | 2000 | 1995 | 1992 | 1987 | 1992 | 1988 | 2000 | 1994 | 1990 | 1988 | 1999 | 1995 | 2000 |
| Lowest Mean Max. Temperature (F) | 22.2 | 27.6 | 37.1 | 47.6 | 61.1 | 70.2 | 77.7 | 81.1 | 67.6 | 52.9 | 37.2 | 24.0 | 22.2 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1983 | 1998 | 1993 | 1976 | 1986 | 1984 | 2000 | 1985 | 1979 |
| Mean Temperature (F) | 24.6 | 29.0 | 38.8 | 47.0 | 55.7 | 65.0 | 73.1 | 72.3 | 62.2 | 50.4 | 36.4 | 25.9 | 48.4 |
| Highest Mean Temperature (F) | 32.4 | 38.1 | 46.0 | 53.6 | 61.7 | 70.7 | 77.4 | 75.9 | 69.3 | 58.2 | 44.9 | 33.7 | 77.4 |
| Year Highest Occurred | 2000 | 1995 | 1992 | 1987 | 1992 | 1988 | 2000 | 2000 | 1990 | 1988 | 1999 | 1995 | 2000 |
| Lowest Mean Temperature (F) | 14.2 | 17.7 | 28.4 | 39.9 | 50.7 | 59.1 | 64.5 | 68.1 | 56.1 | 43.7 | 29.7 | 16.7 | 14.2 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1975 | 1998 | 1993 | 1976 | 1986 | 1984 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 16.9 | 20.7 | 29.8 | 36.8 | 44.5 | 52.3 | 59.5 | 58.7 | 49.6 | 39.3 | 28.2 | 18.1 | 37.9 |
| Highest Mean Min. Temperature (F) | 25.5 | 29.7 | 36.0 | 41.7 | 48.9 | 57.7 | 63.1 | 62.1 | 56.3 | 45.4 | 34.8 | 26.1 | 63.1 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1990 | 1992 | 1977 | 1975 | 1983 | 1990 | 1988 | 1995 | 1995 | 1975 |
| Lowest Mean Min. Temperature (F) | 6.3 | 7.8 | 19.8 | 31.6 | 39.8 | 48.0 | 51.3 | 54.5 | 44.6 | 34.6 | 21.3 | 8.1 | 6.3 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1982 | 1975 | 1998 | 1993 | 1993 | 1986 | 1984 | 1993 | 1990 | 1979 |
| Mean Precipitation (in.) | 1.56 | 1.61 | 2.15 | 2.12 | 2.39 | 1.34 | 0.98 | 0.98 | 1.56 | 2.06 | 1.56 | 1.58 | 19.89 |
| Highest Precipitation (in.) | 4.19 | 4.44 | 4.44 | 5.80 | 4.90 | 3.79 | 2.79 | 5.04 | 5.76 | 4.75 | 5.05 | 5.92 | 5.92 |
| Year Highest Occurred | 1998 | 1986 | 1982 | 1986 | 1987 | 1998 | 1993 | 1977 | 1982 | 1981 | 1985 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.49 | 0.18 | 0.70 | 0.27 | 0.17 | 0.09 | 0.00 | 0.00 | 0.03 | 0.00 | 0.04 | 0.08 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1979 | 1977 | 1972 | 1978 | 1988 | 1985 | 1987 | 1988 | 1976 | 1976 | 1988 |
| Heating Degree Days (F) | 1255. | 1008. | 814. | 542. | 302. | 101. | 14. | 10. | 150. | 456. | 859. | 1212. | 6723. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 14. | 101. | 265. | 236. | 64. | 3. | 0. | 0. | 684. |