| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.7 | 48.0 | 52.5 | 57.9 | 64.3 | 69.3 | 75.2 | 75.5 | 69.7 | 58.8 | 48.5 | 43.0 | 58.9 |
| Highest Mean Max. Temperature (F) | 50.2 | 52.6 | 57.2 | 63.3 | 71.3 | 75.0 | 80.7 | 81.3 | 77.2 | 65.1 | 53.6 | 48.3 | 81.3 |
| Year Highest Occurred | 1981 | 1983 | 1992 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1987 | 1997 | 1979 | 1986 |
| Lowest Mean Max. Temperature (F) | 38.9 | 40.4 | 47.3 | 51.4 | 57.6 | 64.1 | 67.3 | 69.0 | 64.3 | 54.3 | 38.3 | 36.7 | 36.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1991 | 1971 | 1993 | 1980 | 1978 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 37.9 | 40.5 | 43.6 | 47.8 | 53.5 | 58.4 | 63.0 | 63.0 | 57.7 | 49.2 | 42.0 | 37.4 | 49.5 |
| Highest Mean Temperature (F) | 43.3 | 45.3 | 46.9 | 51.7 | 59.6 | 63.3 | 66.7 | 66.6 | 61.2 | 54.3 | 46.1 | 42.5 | 66.7 |
| Year Highest Occurred | 1981 | 1983 | 1978 | 1992 | 1993 | 1978 | 1990 | 1990 | 1974 | 1980 | 1997 | 1979 | 1990 |
| Lowest Mean Temperature (F) | 31.9 | 32.1 | 39.1 | 41.5 | 50.0 | 54.3 | 59.3 | 57.8 | 53.7 | 45.9 | 32.2 | 30.6 | 30.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1996 | 1971 | 1986 | 1973 | 1996 | 1996 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 32.0 | 32.9 | 34.6 | 37.7 | 42.7 | 47.4 | 50.7 | 50.4 | 45.6 | 39.6 | 35.5 | 31.8 | 40.1 |
| Highest Mean Min. Temperature (F) | 36.5 | 38.0 | 39.0 | 42.2 | 49.3 | 53.2 | 54.5 | 55.1 | 50.0 | 44.6 | 39.4 | 36.7 | 55.1 |
| Year Highest Occurred | 1978 | 1983 | 1978 | 1980 | 1993 | 1978 | 1980 | 1990 | 1990 | 1980 | 1987 | 1979 | 1990 |
| Lowest Mean Min. Temperature (F) | 24.8 | 23.8 | 30.1 | 31.5 | 38.3 | 43.1 | 47.4 | 44.2 | 42.1 | 35.1 | 26.1 | 24.4 | 23.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1975 | 1996 | 1988 | 1973 | 1971 | 1972 | 1985 | 1985 | 1989 |
| Mean Precipitation (in.) | 7.44 | 6.09 | 5.59 | 4.49 | 3.63 | 3.11 | 1.69 | 1.58 | 2.70 | 4.70 | 8.47 | 7.63 | 57.12 |
| Highest Precipitation (in.) | 13.72 | 12.11 | 9.93 | 8.62 | 7.83 | 6.66 | 3.93 | 5.05 | 7.48 | 11.19 | 17.79 | 16.00 | 17.79 |
| Year Highest Occurred | 1975 | 1981 | 1997 | 1991 | 1984 | 1990 | 1983 | 1975 | 1978 | 1975 | 1980 | 1979 | 1980 |
| Lowest Precipitation (in.) | 0.83 | 0.49 | 2.27 | 1.60 | 0.89 | 0.57 | 0.04 | 0.28 | 0.04 | 0.39 | 1.50 | 2.03 | 0.04 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1983 | 1992 | 1979 | 1984 | 1998 | 1993 | 1987 | 1979 | 1985 | 1984 |
| Heating Degree Days (F) | 842. | 688. | 664. | 516. | 359. | 210. | 97. | 109. | 230. | 490. | 689. | 856. | 5750. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 9. | 33. | 46. | 9. | 0. | 0. | 0. | 99. |