| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 16.6 | 23.0 | 36.3 | 55.7 | 70.8 | 78.4 | 83.6 | 82.0 | 70.9 | 58.6 | 37.6 | 21.2 | 52.9 |
| Highest Mean Max. Temperature (F) | 31.8 | 33.6 | 48.7 | 68.5 | 79.3 | 88.7 | 90.6 | 88.5 | 77.8 | 71.8 | 45.7 | 31.8 | 57.2 |
| Year Highest Occurred | 1990 | 1976 | 1981 | 1987 | 1977 | 1988 | 1988 | 1976 | 1978 | 1963 | 1981 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 3.5 | 7.4 | 25.8 | 43.5 | 62.8 | 70.0 | 78.5 | 75.4 | 58.5 | 50.1 | 24.9 | 7.7 | 48.9 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1979 | 1979 | 1969 | 1962 | 1985 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 6.2 | 12.8 | 26.5 | 43.8 | 57.2 | 65.9 | 70.9 | 69.0 | 58.4 | 46.8 | 28.4 | 11.9 | 41.5 |
| Highest Mean Temperature (F) | 22.3 | 26.7 | 38.1 | 52.7 | 66.7 | 74.4 | 75.9 | 74.7 | 64.5 | 56.5 | 35.3 | 22.1 | 46.4 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1988 | 1983 | 1978 | 1963 | 1981 | 1979 | 1987 |
| Lowest Mean Temperature (F) | -7.9 | -2.2 | 13.7 | 35.4 | 50.8 | 58.7 | 66.6 | 64.0 | 49.3 | 41.7 | 15.0 | -1.1 | 38.0 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1979 | 1979 | 1969 | 1971 | 1977 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | -4.2 | 2.5 | 16.7 | 31.8 | 43.5 | 53.4 | 58.2 | 55.9 | 45.8 | 35.0 | 19.2 | 2.5 | 30.0 |
| Highest Mean Min. Temperature (F) | 12.8 | 20.1 | 30.5 | 36.8 | 54.0 | 60.0 | 63.9 | 61.7 | 51.2 | 41.5 | 25.4 | 13.8 | 35.6 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1975 | 1983 | 1978 | 1973 | 1962 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -19.3 | -11.8 | 1.6 | 26.4 | 38.3 | 46.1 | 54.2 | 51.5 | 40.1 | 28.8 | 5.0 | -9.9 | 26.9 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1961 | 1983 | 1982 | 1971 | 1977 | 1965 | 1976 | 1985 | 1983 | 1965 |
| Mean Precipitation (in.) | 0.58 | 0.39 | 0.96 | 1.96 | 2.68 | 3.33 | 2.89 | 2.89 | 2.28 | 1.86 | 0.75 | 0.62 | 21.19 |
| Highest Precipitation (in.) | 1.35 | 1.43 | 2.65 | 5.60 | 8.44 | 7.89 | 7.37 | 9.68 | 5.95 | 7.67 | 4.59 | 1.77 | 29.07 |
| Year Highest Occurred | 1962 | 1977 | 1983 | 1986 | 1985 | 1975 | 1962 | 1989 | 1973 | 1982 | 1977 | 1972 | 1962 |
| Lowest Precipitation (in.) | 0.00 | 0.04 | 0.00 | 0.00 | 0.39 | 0.85 | 0.42 | 0.37 | 0.15 | 0.05 | 0.00 | 0.05 | 11.02 |
| Year Lowest Occurred | 1973 | 1985 | 1986 | 1980 | 1980 | 1987 | 1970 | 1969 | 1974 | 1989 | 1990 | 1976 | 1976 |
| Heating Degree Days (F) | 1823. | 1462. | 1194. | 636. | 273. | 81. | 17. | 43. | 223. | 564. | 1098. | 1646. | 9060. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 31. | 108. | 200. | 167. | 25. | 0. | 0. | 0. | 531. |