| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 32.3 | 32.4 | 35.0 | 43.0 | 51.4 | 61.7 | 66.4 | 64.4 | 57.9 | 49.3 | 38.9 | 32.6 | 47.1 |
| Highest Mean Max. Temperature (F) | 42.0 | 39.5 | 48.0 | 50.0 | 57.9 | 68.0 | 69.7 | 71.4 | 64.6 | 59.5 | 44.2 | 41.9 | 49.8 |
| Year Highest Occurred | 1986 | 1979 | 1972 | 1989 | 1974 | 1990 | 1989 | 1978 | 1979 | 1978 | 1989 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 23.7 | 23.4 | 26.0 | 35.6 | 46.3 | 56.3 | 60.3 | 53.1 | 50.3 | 40.2 | 31.1 | 23.6 | 43.4 |
| Year Lowest Occurred | 1963 | 1966 | 1962 | 1975 | 1965 | 1967 | 1968 | 1968 | 1976 | 1984 | 1961 | 1978 | 1961 |
| Mean Temperature (F) | 18.5 | 19.3 | 22.6 | 30.4 | 39.3 | 48.1 | 53.4 | 51.6 | 45.7 | 36.9 | 26.5 | 19.5 | 34.3 |
| Highest Mean Temperature (F) | 26.4 | 24.3 | 33.7 | 37.0 | 43.9 | 52.5 | 56.9 | 54.8 | 49.3 | 42.5 | 31.2 | 28.0 | 36.1 |
| Year Highest Occurred | 1981 | 1976 | 1972 | 1972 | 1974 | 1990 | 1966 | 1969 | 1983 | 1978 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 11.4 | 12.1 | 15.9 | 23.8 | 35.2 | 44.4 | 50.1 | 46.4 | 41.3 | 29.2 | 20.8 | 12.1 | 32.8 |
| Year Lowest Occurred | 1979 | 1966 | 1964 | 1970 | 1975 | 1967 | 1962 | 1968 | 1976 | 1969 | 1972 | 1978 | 1964 |
| Mean Min. Temperature (F) | 4.7 | 6.2 | 10.1 | 17.7 | 27.1 | 34.5 | 40.4 | 38.7 | 33.5 | 24.4 | 14.1 | 6.4 | 21.5 |
| Highest Mean Min. Temperature (F) | 11.3 | 11.9 | 19.4 | 24.5 | 32.1 | 37.1 | 45.4 | 42.8 | 37.9 | 32.0 | 21.0 | 14.1 | 23.7 |
| Year Highest Occurred | 1981 | 1962 | 1972 | 1972 | 1963 | 1977 | 1966 | 1969 | 1963 | 1963 | 1965 | 1980 | 1963 |
| Lowest Mean Min. Temperature (F) | -3.7 | 0.8 | 2.9 | 10.5 | 22.7 | 27.6 | 37.7 | 32.3 | 30.1 | 17.6 | 7.7 | 0.0 | 19.1 |
| Year Lowest Occurred | 1979 | 1966 | 1977 | 1970 | 1975 | 1978 | 1976 | 1981 | 1988 | 1970 | 1972 | 1990 | 1978 |
| Mean Precipitation (in.) | 3.57 | 3.58 | 4.81 | 2.86 | 1.99 | 1.77 | 3.42 | 4.08 | 4.22 | 4.29 | 3.84 | 4.33 | 42.76 |
| Highest Precipitation (in.) | 15.66 | 19.08 | 14.38 | 6.26 | 7.21 | 6.25 | 5.95 | 7.92 | 11.25 | 14.45 | 11.00 | 14.82 | 67.96 |
| Year Highest Occurred | 1980 | 1980 | 1979 | 1990 | 1979 | 1984 | 1986 | 1968 | 1970 | 1972 | 1978 | 1978 | 1979 |
| Lowest Precipitation (in.) | 0.13 | 0.36 | 0.74 | 0.57 | 0.00 | 0.00 | 0.43 | 0.21 | 0.93 | 0.00 | 0.51 | 0.18 | 23.20 |
| Year Lowest Occurred | 1981 | 1981 | 1966 | 1969 | 1974 | 1982 | 1982 | 1978 | 1980 | 1964 | 1980 | 1976 | 1977 |
| Heating Degree Days (F) | 1442. | 1280. | 1314. | 1038. | 797. | 507. | 360. | 415. | 579. | 871. | 1155. | 1411. | 11169. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |