| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.1 | 41.6 | 46.0 | 53.8 | 64.4 | 73.4 | 82.0 | 80.7 | 73.2 | 61.9 | 43.3 | 36.7 | 57.8 |
| Highest Mean Max. Temperature (F) | 43.9 | 48.5 | 52.8 | 70.9 | 70.2 | 80.8 | 88.0 | 88.0 | 80.8 | 76.0 | 52.1 | 43.2 | 61.6 |
| Year Highest Occurred | 1985 | 1963 | 1978 | 1987 | 1987 | 1986 | 1985 | 1967 | 1974 | 1988 | 1969 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 30.3 | 35.8 | 40.5 | 43.3 | 54.9 | 64.7 | 76.5 | 72.3 | 65.4 | 51.6 | 35.1 | 30.4 | 55.3 |
| Year Lowest Occurred | 1973 | 1969 | 1975 | 1967 | 1977 | 1980 | 1963 | 1976 | 1978 | 1984 | 1985 | 1972 | 1975 |
| Mean Temperature (F) | 26.4 | 30.1 | 33.9 | 39.2 | 47.1 | 54.4 | 60.2 | 59.2 | 52.5 | 44.2 | 33.3 | 26.3 | 42.2 |
| Highest Mean Temperature (F) | 32.5 | 38.6 | 39.3 | 49.0 | 51.2 | 59.9 | 64.4 | 64.2 | 57.6 | 51.6 | 38.4 | 31.2 | 44.2 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1969 | 1961 | 1985 | 1967 | 1990 | 1988 | 1981 | 1962 | 1987 |
| Lowest Mean Temperature (F) | 18.4 | 21.3 | 29.5 | 33.3 | 41.6 | 50.0 | 56.7 | 54.9 | 48.1 | 39.2 | 25.5 | 19.2 | 40.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1969 | 1985 | 1978 | 1975 |
| Mean Min. Temperature (F) | 15.5 | 18.6 | 21.8 | 24.5 | 29.8 | 35.4 | 38.5 | 37.6 | 31.7 | 26.5 | 23.3 | 15.9 | 26.6 |
| Highest Mean Min. Temperature (F) | 25.3 | 28.6 | 27.8 | 28.8 | 34.1 | 40.1 | 42.7 | 42.6 | 36.4 | 33.3 | 30.7 | 24.4 | 28.9 |
| Year Highest Occurred | 1978 | 1963 | 1983 | 1965 | 1963 | 1969 | 1980 | 1977 | 1963 | 1979 | 1981 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 3.4 | 5.3 | 13.0 | 20.8 | 27.2 | 31.1 | 34.3 | 33.1 | 26.7 | 20.9 | 11.9 | 4.5 | 22.9 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1968 | 1978 | 1976 | 1986 | 1988 | 1965 | 1974 | 1978 | 1984 | 1985 |
| Mean Precipitation (in.) | 4.12 | 2.88 | 2.57 | 1.16 | 0.96 | 0.83 | 0.52 | 0.78 | 0.83 | 1.58 | 4.21 | 4.48 | 24.92 |
| Highest Precipitation (in.) | 10.06 | 6.06 | 7.02 | 2.92 | 3.45 | 1.78 | 2.93 | 2.74 | 2.90 | 4.96 | 11.94 | 14.71 | 33.15 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1963 | 1990 | 1977 | 1987 | 1976 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.49 | 0.33 | 0.10 | 0.01 | 0.16 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.23 | 14.35 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1968 | 1970 | 1973 | 1967 | 1981 | 1990 | 1990 | 1989 | 1976 | 1976 |
| Heating Degree Days (F) | 1197. | 977. | 964. | 774. | 555. | 322. | 163. | 198. | 379. | 645. | 951. | 1200. | 8325. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 14. | 18. | 0. | 0. | 0. | 0. | 32. |