| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 27.2 | 34.1 | 40.8 | 48.7 | 58.6 | 68.2 | 78.3 | 77.2 | 67.7 | 56.5 | 38.6 | 27.2 | 51.9 |
| Highest Mean Max. Temperature (F) | 32.2 | 42.5 | 48.1 | 60.2 | 66.7 | 75.4 | 83.3 | 84.7 | 76.6 | 66.8 | 47.3 | 34.0 | 55.3 |
| Year Highest Occurred | 1981 | 1977 | 1978 | 1987 | 1969 | 1961 | 1985 | 1967 | 1990 | 1988 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 17.9 | 27.6 | 34.7 | 38.6 | 54.6 | 62.1 | 72.2 | 70.8 | 58.1 | 49.3 | 31.9 | 17.6 | 48.8 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1978 | 1964 | 1982 | 1976 | 1986 | 1969 | 1985 | 1983 | 1982 |
| Mean Temperature (F) | 12.8 | 17.6 | 24.5 | 33.8 | 43.3 | 51.2 | 57.1 | 55.6 | 47.4 | 38.7 | 25.6 | 13.1 | 35.1 |
| Highest Mean Temperature (F) | 19.9 | 27.8 | 31.5 | 41.0 | 47.7 | 56.1 | 61.3 | 59.7 | 54.0 | 43.9 | 30.1 | 21.2 | 37.2 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1990 | 1987 | 1977 | 1975 | 1961 | 1990 | 1988 | 1967 | 1980 | 1981 |
| Lowest Mean Temperature (F) | -0.3 | 6.6 | 15.1 | 25.7 | 40.3 | 47.3 | 53.7 | 52.1 | 41.1 | 33.4 | 18.8 | 3.3 | 31.9 |
| Year Lowest Occurred | 1979 | 1985 | 1965 | 1975 | 1977 | 1976 | 1986 | 1980 | 1965 | 1969 | 1979 | 1985 | 1985 |
| Mean Min. Temperature (F) | -1.6 | 1.2 | 8.1 | 18.8 | 27.9 | 34.1 | 35.8 | 33.9 | 27.1 | 20.8 | 12.5 | -1.1 | 18.1 |
| Highest Mean Min. Temperature (F) | 9.2 | 17.0 | 16.6 | 26.2 | 32.5 | 38.1 | 41.8 | 41.6 | 35.2 | 28.1 | 17.9 | 10.4 | 20.6 |
| Year Highest Occurred | 1990 | 1986 | 1972 | 1990 | 1980 | 1972 | 1975 | 1983 | 1963 | 1963 | 1963 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -18.4 | -14.7 | -4.5 | 9.8 | 23.7 | 29.8 | 31.6 | 29.0 | 21.7 | 15.1 | 2.4 | -12.5 | 13.8 |
| Year Lowest Occurred | 1979 | 1985 | 1965 | 1982 | 1968 | 1976 | 1968 | 1988 | 1964 | 1987 | 1979 | 1985 | 1985 |
| Mean Precipitation (in.) | 2.05 | 1.57 | 1.29 | 1.14 | 1.32 | 1.46 | 0.74 | 0.87 | 1.01 | 1.03 | 1.65 | 2.23 | 16.36 |
| Highest Precipitation (in.) | 9.62 | 6.76 | 3.33 | 3.57 | 3.50 | 3.82 | 2.21 | 2.68 | 3.10 | 2.95 | 4.58 | 6.75 | 28.35 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1982 | 1962 | 1963 | 1982 | 1983 | 1986 | 1967 | 1970 | 1964 | 1970 |
| Lowest Precipitation (in.) | 0.17 | 0.13 | 0.32 | 0.09 | 0.08 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 9.49 |
| Year Lowest Occurred | 1984 | 1964 | 1985 | 1977 | 1969 | 1989 | 1988 | 1988 | 1988 | 1988 | 1982 | 1965 | 1974 |
| Heating Degree Days (F) | 1618. | 1327. | 1256. | 936. | 673. | 414. | 248. | 296. | 528. | 815. | 1182. | 1609. | 10902. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 5. | 0. | 0. | 0. | 0. | 5. |