| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.9 | 44.6 | 48.7 | 55.3 | 64.4 | 74.0 | 82.7 | 82.2 | 75.1 | 64.0 | 48.9 | 41.2 | 60.2 |
| Highest Mean Max. Temperature (F) | 48.3 | 55.9 | 56.7 | 64.8 | 73.4 | 81.9 | 87.9 | 87.9 | 83.4 | 76.0 | 59.3 | 50.6 | 87.9 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1974 | 1994 | 1981 | 1974 | 1988 | 1995 | 1976 | 1994 |
| Lowest Mean Max. Temperature (F) | 35.1 | 37.3 | 40.9 | 43.7 | 53.5 | 67.8 | 76.9 | 73.6 | 64.4 | 55.4 | 39.2 | 35.8 | 35.1 |
| Year Lowest Occurred | 1993 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1987 | 1993 |
| Mean Temperature (F) | 28.6 | 31.6 | 35.9 | 41.0 | 48.4 | 56.1 | 62.6 | 62.1 | 55.8 | 46.6 | 35.7 | 28.9 | 44.4 |
| Highest Mean Temperature (F) | 36.1 | 39.1 | 42.0 | 47.0 | 54.6 | 60.5 | 66.6 | 65.5 | 59.4 | 53.8 | 43.0 | 35.0 | 66.6 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1977 | 1996 | 1981 | 1981 | 1988 | 1995 | 1981 | 1996 |
| Lowest Mean Temperature (F) | 23.3 | 25.2 | 30.3 | 31.6 | 40.8 | 51.5 | 57.4 | 55.4 | 48.7 | 41.3 | 27.7 | 22.0 | 22.0 |
| Year Lowest Occurred | 1979 | 1990 | 1991 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 16.3 | 18.5 | 23.0 | 26.7 | 32.4 | 38.2 | 42.4 | 41.9 | 36.4 | 29.1 | 22.4 | 16.6 | 28.7 |
| Highest Mean Min. Temperature (F) | 23.9 | 24.3 | 28.1 | 30.1 | 36.0 | 42.2 | 46.2 | 44.5 | 41.2 | 32.5 | 26.7 | 24.5 | 46.2 |
| Year Highest Occurred | 1986 | 2000 | 1978 | 1992 | 1973 | 1985 | 1996 | 1977 | 1998 | 1979 | 1997 | 1981 | 1996 |
| Lowest Mean Min. Temperature (F) | 9.3 | 9.4 | 16.3 | 19.4 | 27.2 | 34.0 | 37.5 | 37.2 | 30.7 | 24.9 | 16.2 | 6.8 | 6.8 |
| Year Lowest Occurred | 1989 | 1990 | 1977 | 1975 | 1977 | 1976 | 1993 | 1975 | 1973 | 1976 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.35 | 5.30 | 4.43 | 1.93 | 1.33 | 0.66 | 0.41 | 0.52 | 1.00 | 1.75 | 3.83 | 4.34 | 30.85 |
| Highest Precipitation (in.) | 16.17 | 19.02 | 14.05 | 5.93 | 4.17 | 1.61 | 2.10 | 2.28 | 4.25 | 5.47 | 13.05 | 16.79 | 19.02 |
| Year Highest Occurred | 1997 | 1986 | 1995 | 1982 | 1996 | 1988 | 1974 | 1976 | 1998 | 1982 | 1983 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.44 | 0.09 | 0.26 | 0.15 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.34 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1977 | 1976 | 1994 | 1994 | 2000 | 1995 | 1995 | 1992 | 1989 | 1976 |
| Heating Degree Days (F) | 1130. | 937. | 903. | 720. | 516. | 275. | 123. | 133. | 283. | 572. | 880. | 1119. | 7591. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 46. | 40. | 6. | 0. | 0. | 0. | 100. |