| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 28.4 | 31.8 | 37.9 | 47.8 | 58.7 | 68.9 | 75.1 | 73.3 | 65.7 | 54.4 | 38.6 | 29.6 | 50.9 |
| Highest Mean Max. Temperature (F) | 38.5 | 37.0 | 45.7 | 55.7 | 64.2 | 74.9 | 78.6 | 76.8 | 72.5 | 62.7 | 45.4 | 42.7 | 53.4 |
| Year Highest Occurred | 1981 | 1977 | 1972 | 1981 | 1969 | 1977 | 1966 | 1969 | 1979 | 1963 | 1963 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 20.4 | 24.3 | 27.8 | 40.8 | 53.5 | 62.3 | 71.8 | 68.8 | 56.5 | 42.8 | 29.4 | 22.8 | 48.8 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1983 | 1983 | 1969 | 1973 | 1968 | 1961 | 1969 | 1979 | 1978 | 1964 |
| Mean Temperature (F) | 16.9 | 19.2 | 24.7 | 33.9 | 43.5 | 51.9 | 57.6 | 55.7 | 48.3 | 38.6 | 26.2 | 18.1 | 36.2 |
| Highest Mean Temperature (F) | 23.3 | 24.4 | 32.8 | 39.4 | 47.5 | 57.0 | 60.7 | 60.1 | 53.1 | 45.6 | 32.2 | 29.6 | 38.4 |
| Year Highest Occurred | 1969 | 1976 | 1972 | 1981 | 1969 | 1988 | 1966 | 1983 | 1981 | 1963 | 1963 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 7.0 | 10.7 | 14.5 | 27.1 | 39.4 | 48.3 | 55.9 | 53.1 | 42.9 | 31.1 | 15.2 | 9.7 | 33.6 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1983 | 1983 | 1969 | 1978 | 1978 | 1961 | 1969 | 1979 | 1978 | 1979 |
| Mean Min. Temperature (F) | 5.4 | 6.5 | 11.5 | 20.0 | 28.2 | 34.8 | 40.1 | 38.2 | 30.9 | 22.8 | 13.7 | 6.7 | 21.6 |
| Highest Mean Min. Temperature (F) | 13.0 | 13.6 | 21.7 | 25.7 | 31.7 | 39.9 | 43.8 | 44.3 | 35.9 | 28.4 | 20.7 | 16.5 | 24.5 |
| Year Highest Occurred | 1969 | 1986 | 1974 | 1990 | 1987 | 1988 | 1984 | 1983 | 1981 | 1963 | 1965 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -6.4 | -2.9 | 1.1 | 13.3 | 24.0 | 31.5 | 35.4 | 33.3 | 25.3 | 15.5 | 0.9 | -3.5 | 17.4 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1983 | 1979 | 1979 | 1978 | 1978 | 1978 | 1976 | 1979 | 1978 | 1979 |
| Mean Precipitation (in.) | 1.02 | 0.78 | 0.91 | 1.10 | 1.43 | 1.30 | 1.71 | 1.54 | 1.32 | 1.08 | 0.95 | 1.06 | 14.20 |
| Highest Precipitation (in.) | 2.88 | 2.44 | 2.14 | 2.27 | 4.05 | 3.60 | 4.19 | 3.39 | 4.37 | 2.80 | 3.22 | 2.81 | 19.44 |
| Year Highest Occurred | 1963 | 1962 | 1974 | 1984 | 1981 | 1969 | 1983 | 1963 | 1961 | 1969 | 1985 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.19 | 0.13 | 0.15 | 0.28 | 0.22 | 0.02 | 0.33 | 0.41 | 0.28 | 0.11 | 0.12 | 0.13 | 8.73 |
| Year Lowest Occurred | 1981 | 1985 | 1986 | 1979 | 1986 | 1980 | 1966 | 1988 | 1962 | 1963 | 1966 | 1986 | 1966 |
| Heating Degree Days (F) | 1491. | 1282. | 1249. | 933. | 667. | 393. | 229. | 288. | 501. | 818. | 1164. | 1454. | 10469. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |