| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.9 | 39.2 | 50.2 | 61.8 | 70.6 | 78.3 | 85.4 | 85.3 | 74.3 | 57.9 | 40.8 | 31.3 | 58.8 |
| Highest Mean Max. Temperature (F) | 36.8 | 43.4 | 56.5 | 69.2 | 75.2 | 84.1 | 94.3 | 94.8 | 84.7 | 64.4 | 45.1 | 37.3 | 61.8 |
| Year Highest Occurred | 1967 | 1967 | 1981 | 1987 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1962 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 18.1 | 30.1 | 43.8 | 57.7 | 64.7 | 70.8 | 77.5 | 76.5 | 65.6 | 53.5 | 27.6 | 24.1 | 56.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1970 | 1984 | 1981 | 1983 | 1976 | 1985 | 1990 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 23.7 | 29.9 | 37.9 | 46.8 | 55.0 | 62.4 | 67.7 | 67.2 | 57.4 | 45.1 | 33.7 | 25.0 | 46.0 |
| Highest Mean Temperature (F) | 31.5 | 34.5 | 42.4 | 52.2 | 58.0 | 66.0 | 73.7 | 73.0 | 64.8 | 50.0 | 39.0 | 32.5 | 48.2 |
| Year Highest Occurred | 1981 | 1961 | 1981 | 1987 | 1980 | 1982 | 1985 | 1986 | 1967 | 1988 | 1983 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 7.9 | 20.2 | 31.0 | 43.3 | 51.0 | 57.9 | 63.4 | 61.4 | 53.0 | 41.5 | 21.0 | 15.8 | 43.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1972 | 1965 | 1981 | 1983 | 1964 | 1985 | 1984 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 16.3 | 20.7 | 25.6 | 31.7 | 39.3 | 46.4 | 49.8 | 49.0 | 40.5 | 32.3 | 26.5 | 18.6 | 33.1 |
| Highest Mean Min. Temperature (F) | 26.5 | 28.6 | 31.2 | 36.2 | 45.4 | 49.7 | 54.0 | 52.9 | 45.0 | 35.9 | 33.9 | 28.1 | 35.0 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1974 | 1980 | 1969 | 1975 | 1986 | 1978 | 1975 | 1983 | 1966 | 1981 |
| Lowest Mean Min. Temperature (F) | -2.4 | 10.3 | 14.5 | 28.0 | 33.6 | 42.9 | 46.8 | 43.7 | 36.1 | 28.1 | 14.3 | 7.4 | 30.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1965 | 1962 | 1972 | 1964 | 1984 | 1977 | 1985 | 1983 | 1964 |
| Mean Precipitation (in.) | 1.90 | 1.42 | 1.45 | 1.47 | 2.03 | 1.84 | 1.32 | 1.36 | 1.00 | 1.19 | 1.98 | 2.30 | 19.26 |
| Highest Precipitation (in.) | 3.27 | 3.18 | 2.72 | 3.20 | 5.75 | 3.71 | 3.79 | 4.48 | 2.74 | 2.86 | 4.83 | 4.26 | 29.24 |
| Year Highest Occurred | 1982 | 1961 | 1989 | 1983 | 1981 | 1983 | 1983 | 1976 | 1986 | 1967 | 1973 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.28 | 0.34 | 0.15 | 0.21 | 0.52 | 0.41 | 0.05 | 0.10 | 0.00 | 0.07 | 0.42 | 0.81 | 14.98 |
| Year Lowest Occurred | 1963 | 1977 | 1965 | 1977 | 1982 | 1974 | 1973 | 1967 | 1990 | 1974 | 1979 | 1989 | 1988 |
| Heating Degree Days (F) | 1280. | 983. | 840. | 546. | 310. | 121. | 36. | 60. | 249. | 617. | 939. | 1240. | 7221. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 43. | 120. | 128. | 21. | 0. | 0. | 0. | 312. |