| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.7 | 39.7 | 44.9 | 53.9 | 63.1 | 72.8 | 76.4 | 73.4 | 67.9 | 58.6 | 45.3 | 37.8 | 55.9 |
| Highest Mean Max. Temperature (F) | 44.9 | 45.1 | 53.2 | 60.8 | 68.8 | 78.8 | 81.0 | 77.1 | 72.4 | 63.5 | 50.5 | 47.2 | 58.9 |
| Year Highest Occurred | 1986 | 1981 | 1989 | 1989 | 1974 | 1990 | 1980 | 1962 | 1979 | 1987 | 1989 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 31.0 | 31.5 | 38.3 | 47.1 | 59.0 | 67.3 | 73.1 | 68.4 | 63.2 | 51.1 | 37.6 | 31.7 | 53.9 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1973 | 1983 | 1965 | 1975 | 1967 | 1961 | 1969 | 1972 | 1961 | 1961 |
| Mean Temperature (F) | 20.3 | 23.8 | 29.9 | 37.9 | 46.1 | 54.1 | 58.9 | 56.8 | 51.0 | 41.8 | 30.5 | 22.4 | 39.5 |
| Highest Mean Temperature (F) | 27.3 | 29.3 | 36.5 | 43.3 | 50.4 | 58.6 | 61.4 | 59.8 | 54.1 | 44.9 | 34.8 | 31.7 | 42.3 |
| Year Highest Occurred | 1986 | 1986 | 1989 | 1989 | 1984 | 1990 | 1980 | 1977 | 1990 | 1987 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 14.3 | 13.7 | 22.0 | 30.5 | 43.3 | 50.7 | 55.8 | 54.0 | 48.2 | 36.8 | 23.2 | 16.0 | 36.7 |
| Year Lowest Occurred | 1966 | 1964 | 1962 | 1973 | 1965 | 1965 | 1961 | 1974 | 1965 | 1970 | 1972 | 1961 | 1964 |
| Mean Min. Temperature (F) | 3.8 | 7.7 | 15.0 | 21.9 | 29.0 | 35.3 | 41.3 | 40.2 | 34.2 | 25.0 | 15.6 | 6.8 | 23.0 |
| Highest Mean Min. Temperature (F) | 13.9 | 16.8 | 21.5 | 27.5 | 32.1 | 39.1 | 44.2 | 44.1 | 38.4 | 31.7 | 20.5 | 16.1 | 26.0 |
| Year Highest Occurred | 1969 | 1986 | 1974 | 1990 | 1984 | 1981 | 1969 | 1982 | 1982 | 1972 | 1985 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -4.4 | -4.3 | 4.9 | 13.8 | 24.2 | 31.2 | 37.6 | 35.3 | 30.0 | 21.4 | 8.7 | -0.3 | 19.4 |
| Year Lowest Occurred | 1966 | 1966 | 1962 | 1973 | 1962 | 1962 | 1961 | 1962 | 1968 | 1980 | 1979 | 1976 | 1964 |
| Mean Precipitation (in.) | 1.06 | 1.09 | 1.86 | 1.60 | 1.56 | 1.60 | 2.84 | 3.13 | 1.87 | 1.54 | 1.40 | 1.39 | 20.94 |
| Highest Precipitation (in.) | 2.45 | 2.76 | 3.69 | 4.23 | 4.63 | 4.27 | 5.05 | 8.18 | 3.88 | 4.05 | 4.00 | 3.40 | 27.41 |
| Year Highest Occurred | 1979 | 1989 | 1973 | 1986 | 1979 | 1986 | 1966 | 1966 | 1965 | 1971 | 1978 | 1978 | 1990 |
| Lowest Precipitation (in.) | 0.17 | 0.16 | 0.23 | 0.22 | 0.15 | 0.00 | 0.51 | 0.72 | 0.37 | 0.04 | 0.05 | 0.19 | 13.26 |
| Year Lowest Occurred | 1970 | 1974 | 1966 | 1963 | 1963 | 1980 | 1987 | 1962 | 1966 | 1964 | 1967 | 1976 | 1962 |
| Heating Degree Days (F) | 1386. | 1154. | 1088. | 813. | 586. | 327. | 189. | 254. | 420. | 719. | 1035. | 1321. | 9292. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |