| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.4 | 40.8 | 45.5 | 54.8 | 64.1 | 73.9 | 77.0 | 73.7 | 68.1 | 59.3 | 46.7 | 39.7 | 56.8 |
| Highest Mean Max. Temperature (F) | 46.0 | 45.6 | 55.6 | 61.3 | 71.3 | 78.2 | 81.4 | 79.1 | 73.2 | 66.0 | 52.2 | 48.2 | 60.1 |
| Year Highest Occurred | 1986 | 1970 | 1972 | 1962 | 1974 | 1974 | 1980 | 1962 | 1963 | 1964 | 1962 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 31.8 | 34.8 | 41.1 | 47.1 | 58.0 | 69.2 | 71.7 | 70.3 | 63.3 | 47.7 | 39.3 | 33.3 | 54.6 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1983 | 1987 | 1986 | 1986 | 1988 | 1986 | 1984 | 1972 | 1990 | 1990 |
| Mean Temperature (F) | 22.7 | 25.5 | 31.0 | 38.8 | 46.3 | 54.4 | 59.7 | 57.6 | 51.5 | 42.2 | 31.9 | 24.5 | 40.5 |
| Highest Mean Temperature (F) | 29.6 | 29.9 | 38.0 | 43.7 | 50.7 | 57.5 | 62.6 | 60.3 | 55.6 | 47.0 | 36.1 | 32.3 | 42.5 |
| Year Highest Occurred | 1986 | 1976 | 1967 | 1989 | 1984 | 1981 | 1966 | 1969 | 1963 | 1963 | 1965 | 1980 | 1963 |
| Lowest Mean Temperature (F) | 17.5 | 18.3 | 25.7 | 32.7 | 43.3 | 51.6 | 56.8 | 55.2 | 48.3 | 36.6 | 25.7 | 19.2 | 39.1 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1983 | 1990 | 1975 | 1986 | 1990 | 1986 | 1984 | 1979 | 1990 | 1987 |
| Mean Min. Temperature (F) | 6.9 | 10.2 | 16.4 | 22.6 | 28.5 | 34.8 | 42.3 | 41.4 | 34.9 | 25.2 | 17.0 | 9.3 | 24.1 |
| Highest Mean Min. Temperature (F) | 15.2 | 18.0 | 23.0 | 26.5 | 32.0 | 37.7 | 45.6 | 45.1 | 38.3 | 32.2 | 22.3 | 16.3 | 26.4 |
| Year Highest Occurred | 1980 | 1986 | 1974 | 1989 | 1984 | 1988 | 1966 | 1982 | 1982 | 1972 | 1978 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | 1.4 | 1.7 | 10.1 | 16.8 | 25.1 | 30.1 | 38.9 | 37.7 | 29.6 | 22.3 | 11.1 | 3.6 | 22.5 |
| Year Lowest Occurred | 1966 | 1964 | 1969 | 1970 | 1971 | 1975 | 1987 | 1962 | 1968 | 1975 | 1979 | 1976 | 1975 |
| Mean Precipitation (in.) | 1.74 | 1.68 | 2.03 | 1.26 | 1.24 | 1.32 | 3.49 | 3.70 | 2.07 | 1.77 | 1.55 | 1.66 | 23.51 |
| Highest Precipitation (in.) | 4.44 | 3.49 | 6.33 | 3.49 | 3.46 | 4.82 | 7.08 | 6.09 | 4.30 | 5.69 | 5.28 | 4.24 | 34.05 |
| Year Highest Occurred | 1979 | 1975 | 1973 | 1986 | 1979 | 1966 | 1990 | 1967 | 1990 | 1972 | 1978 | 1983 | 1990 |
| Lowest Precipitation (in.) | 0.12 | 0.19 | 0.27 | 0.00 | 0.04 | 0.08 | 0.82 | 0.56 | 0.32 | 0.02 | 0.27 | 0.14 | 14.64 |
| Year Lowest Occurred | 1986 | 1972 | 1972 | 1989 | 1963 | 1980 | 1980 | 1962 | 1968 | 1964 | 1989 | 1963 | 1976 |
| Heating Degree Days (F) | 1311. | 1106. | 1054. | 786. | 580. | 318. | 170. | 229. | 405. | 707. | 993. | 1256. | 8915. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 6. | 0. | 0. | 0. | 0. | 0. | 6. |