| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.1 | 49.3 | 54.8 | 63.5 | 72.5 | 82.5 | 84.9 | 81.7 | 75.7 | 67.5 | 55.4 | 48.3 | 65.3 |
| Highest Mean Max. Temperature (F) | 55.5 | 55.3 | 63.0 | 69.9 | 81.1 | 90.2 | 90.8 | 88.3 | 81.0 | 75.0 | 61.4 | 55.5 | 68.1 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1962 | 1974 | 1990 | 1980 | 1962 | 1983 | 1979 | 1962 | 1980 | 1962 |
| Lowest Mean Max. Temperature (F) | 39.6 | 38.9 | 48.2 | 54.4 | 65.1 | 77.6 | 77.8 | 77.7 | 70.3 | 58.8 | 46.1 | 41.1 | 61.3 |
| Year Lowest Occurred | 1979 | 1964 | 1973 | 1973 | 1990 | 1979 | 1990 | 1972 | 1975 | 1984 | 1972 | 1967 | 1973 |
| Mean Temperature (F) | 30.4 | 33.8 | 39.2 | 46.7 | 55.2 | 64.9 | 69.0 | 66.4 | 60.0 | 50.6 | 39.5 | 32.2 | 49.0 |
| Highest Mean Temperature (F) | 36.0 | 39.6 | 46.2 | 53.1 | 61.8 | 72.4 | 73.5 | 69.6 | 64.2 | 56.1 | 43.0 | 39.3 | 50.5 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1974 | 1974 | 1980 | 1985 | 1983 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 24.3 | 24.9 | 33.8 | 40.6 | 50.3 | 62.5 | 63.5 | 62.5 | 55.8 | 42.5 | 33.4 | 25.4 | 47.3 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1973 | 1990 | 1973 | 1990 | 1971 | 1988 | 1970 | 1979 | 1974 | 1973 |
| Mean Min. Temperature (F) | 13.7 | 18.3 | 23.6 | 30.0 | 37.9 | 47.4 | 52.9 | 51.0 | 44.2 | 33.7 | 23.6 | 16.1 | 32.7 |
| Highest Mean Min. Temperature (F) | 22.4 | 23.8 | 29.7 | 36.6 | 42.5 | 56.1 | 57.7 | 54.3 | 47.8 | 40.5 | 28.8 | 23.1 | 35.3 |
| Year Highest Occurred | 1980 | 1976 | 1978 | 1981 | 1974 | 1974 | 1974 | 1969 | 1990 | 1974 | 1973 | 1980 | 1978 |
| Lowest Mean Min. Temperature (F) | 6.0 | 10.0 | 17.5 | 25.0 | 34.5 | 43.2 | 49.1 | 46.8 | 38.0 | 24.8 | 16.1 | 9.5 | 30.3 |
| Year Lowest Occurred | 1977 | 1966 | 1988 | 1983 | 1983 | 1962 | 1990 | 1971 | 1988 | 1970 | 1976 | 1974 | 1988 |
| Mean Precipitation (in.) | 0.70 | 0.74 | 0.91 | 0.80 | 1.02 | 1.19 | 2.88 | 3.38 | 2.10 | 1.05 | 0.92 | 0.68 | 16.37 |
| Highest Precipitation (in.) | 1.73 | 2.13 | 3.31 | 2.68 | 2.82 | 3.89 | 5.81 | 7.06 | 4.54 | 3.51 | 3.75 | 1.77 | 23.31 |
| Year Highest Occurred | 1974 | 1978 | 1985 | 1985 | 1979 | 1986 | 1970 | 1961 | 1982 | 1974 | 1978 | 1986 | 1985 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.57 | 1.19 | 0.36 | 0.00 | 0.00 | 0.00 | 9.82 |
| Year Lowest Occurred | 1972 | 1984 | 1972 | 1972 | 1974 | 1980 | 1987 | 1962 | 1968 | 1988 | 1989 | 1977 | 1968 |
| Heating Degree Days (F) | 1073. | 874. | 800. | 549. | 309. | 80. | 22. | 40. | 163. | 446. | 765. | 1017. | 6138. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 77. | 146. | 83. | 13. | 0. | 0. | 0. | 324. |