| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.2 | 36.7 | 45.2 | 54.3 | 64.1 | 75.5 | 81.4 | 79.1 | 70.4 | 57.5 | 41.9 | 33.5 | 56.0 |
| Highest Mean Max. Temperature (F) | 42.8 | 46.2 | 54.6 | 62.1 | 69.8 | 81.9 | 85.5 | 83.1 | 76.1 | 64.9 | 52.9 | 45.2 | 85.5 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1981 | 2000 | 1977 | 1994 | 1994 | 1979 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 22.0 | 29.8 | 39.0 | 45.0 | 57.1 | 68.9 | 76.1 | 76.2 | 64.6 | 49.1 | 35.0 | 25.3 | 22.0 |
| Year Lowest Occurred | 1979 | 1979 | 1980 | 1975 | 1995 | 1995 | 1983 | 1979 | 1986 | 1984 | 2000 | 1978 | 1979 |
| Mean Temperature (F) | 23.2 | 26.9 | 34.2 | 42.1 | 50.9 | 61.3 | 67.3 | 65.7 | 57.4 | 45.9 | 31.9 | 24.2 | 44.3 |
| Highest Mean Temperature (F) | 32.5 | 34.7 | 40.6 | 49.0 | 56.0 | 66.9 | 70.7 | 70.1 | 61.5 | 53.4 | 39.2 | 33.7 | 70.7 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1992 | 2000 | 1977 | 1994 | 2000 | 1979 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Temperature (F) | 13.4 | 19.5 | 29.2 | 33.9 | 45.7 | 55.4 | 63.3 | 62.6 | 52.6 | 38.5 | 26.2 | 16.1 | 13.4 |
| Year Lowest Occurred | 1979 | 1974 | 1980 | 1975 | 1980 | 1975 | 1993 | 1973 | 1971 | 1984 | 2000 | 1978 | 1979 |
| Mean Min. Temperature (F) | 14.1 | 17.0 | 23.2 | 29.9 | 37.7 | 47.0 | 53.1 | 52.3 | 44.4 | 34.2 | 21.8 | 14.8 | 32.5 |
| Highest Mean Min. Temperature (F) | 22.6 | 23.9 | 30.2 | 36.8 | 42.1 | 52.0 | 56.8 | 57.7 | 49.3 | 41.9 | 26.2 | 22.1 | 57.7 |
| Year Highest Occurred | 2000 | 2000 | 1986 | 1992 | 2000 | 1977 | 1988 | 2000 | 1998 | 1988 | 1995 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | 4.9 | 7.6 | 16.7 | 22.7 | 32.6 | 40.8 | 47.8 | 47.1 | 37.6 | 28.0 | 16.9 | 6.6 | 4.9 |
| Year Lowest Occurred | 1979 | 1974 | 1976 | 1973 | 1975 | 1975 | 1993 | 1973 | 1971 | 1984 | 1979 | 1971 | 1979 |
| Mean Precipitation (in.) | 1.04 | 1.16 | 1.31 | 1.05 | 1.36 | 0.72 | 1.38 | 1.43 | 1.52 | 1.36 | 0.94 | 0.81 | 14.08 |
| Highest Precipitation (in.) | 3.41 | 3.77 | 3.52 | 3.02 | 3.10 | 2.01 | 4.02 | 3.27 | 4.68 | 3.80 | 4.32 | 3.05 | 4.68 |
| Year Highest Occurred | 1980 | 1980 | 1979 | 1976 | 1977 | 1998 | 1985 | 1984 | 1997 | 1984 | 1978 | 1971 | 1997 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.10 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1977 | 1977 | 1974 | 1980 | 1971 | 1985 | 1987 | 1999 | 1990 | 1980 | 1972 |
| Heating Degree Days (F) | 1298. | 1069. | 955. | 687. | 445. | 169. | 38. | 57. | 238. | 593. | 995. | 1266. | 7810. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 57. | 108. | 79. | 10. | 0. | 0. | 0. | 257. |