| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 8.8 | 16.9 | 30.5 | 49.3 | 64.6 | 73.6 | 77.7 | 76.3 | 64.9 | 52.2 | 31.0 | 14.5 | 46.7 |
| Highest Mean Max. Temperature (F) | 22.2 | 29.2 | 41.8 | 62.4 | 77.1 | 82.9 | 82.3 | 84.2 | 71.7 | 65.4 | 39.8 | 23.6 | 51.4 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1988 | 1961 | 1967 | 1963 | 1981 | 1974 | 1987 |
| Lowest Mean Max. Temperature (F) | -3.3 | 6.8 | 21.4 | 39.9 | 53.8 | 64.8 | 73.0 | 69.0 | 54.9 | 44.2 | 19.9 | 1.3 | 41.9 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1979 | 1979 | 1982 | 1971 | 1985 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | -1.7 | 5.3 | 19.4 | 37.9 | 51.3 | 60.9 | 65.4 | 63.3 | 52.9 | 41.4 | 22.8 | 5.4 | 35.4 |
| Highest Mean Temperature (F) | 11.7 | 20.5 | 32.6 | 47.2 | 63.1 | 68.0 | 69.1 | 68.9 | 57.6 | 51.7 | 31.7 | 16.3 | 40.4 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1974 | 1961 | 1967 | 1963 | 1981 | 1974 | 1987 |
| Lowest Mean Temperature (F) | -14.4 | -4.9 | 8.0 | 30.8 | 44.3 | 52.3 | 60.8 | 56.9 | 44.2 | 33.9 | 10.6 | -7.2 | 31.3 |
| Year Lowest Occurred | 1982 | 1989 | 1975 | 1979 | 1979 | 1982 | 1971 | 1979 | 1965 | 1979 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | -12.1 | -6.3 | 8.3 | 26.4 | 38.0 | 48.2 | 53.1 | 50.2 | 40.9 | 30.6 | 14.5 | -3.8 | 24.0 |
| Highest Mean Min. Temperature (F) | 1.1 | 11.8 | 23.3 | 32.0 | 49.0 | 54.4 | 57.6 | 54.9 | 46.6 | 38.0 | 23.9 | 9.0 | 29.3 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1963 | 1966 | 1988 | 1978 | 1963 | 1962 | 1974 | 1987 |
| Lowest Mean Min. Temperature (F) | -25.4 | -19.2 | -7.8 | 21.5 | 32.1 | 39.7 | 48.5 | 43.8 | 33.5 | 23.5 | 1.2 | -15.7 | 20.7 |
| Year Lowest Occurred | 1982 | 1967 | 1975 | 1961 | 1967 | 1982 | 1971 | 1977 | 1965 | 1979 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.71 | 0.46 | 0.70 | 1.30 | 2.36 | 3.51 | 3.32 | 3.00 | 2.44 | 1.26 | 0.75 | 0.68 | 20.49 |
| Highest Precipitation (in.) | 3.07 | 1.26 | 1.70 | 2.96 | 5.93 | 6.85 | 6.25 | 10.97 | 5.67 | 4.32 | 2.27 | 1.76 | 29.98 |
| Year Highest Occurred | 1969 | 1983 | 1966 | 1986 | 1970 | 1981 | 1978 | 1974 | 1973 | 1984 | 1977 | 1967 | 1968 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.24 | 0.59 | 1.08 | 0.69 | 0.34 | 0.07 | 0.00 | 0.10 | 14.39 |
| Year Lowest Occurred | 1984 | 1968 | 1987 | 1988 | 1980 | 1961 | 1985 | 1971 | 1976 | 1976 | 1976 | 1983 | 1961 |
| Heating Degree Days (F) | 2068. | 1672. | 1414. | 813. | 440. | 175. | 68. | 142. | 368. | 732. | 1266. | 1848. | 11006. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 15. | 52. | 80. | 89. | 0. | 0. | 0. | 0. | 236. |