| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.4 | 41.4 | 49.7 | 59.5 | 68.3 | 77.2 | 81.1 | 78.8 | 73.1 | 63.7 | 49.4 | 38.0 | 59.6 |
| Highest Mean Max. Temperature (F) | 46.5 | 51.3 | 59.0 | 66.1 | 74.6 | 81.5 | 84.7 | 83.9 | 77.5 | 69.2 | 57.0 | 49.5 | 62.3 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1981 | 1974 | 1981 | 1966 | 1969 | 1979 | 1965 | 1966 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 22.3 | 33.2 | 43.1 | 52.5 | 64.3 | 72.3 | 77.2 | 75.7 | 68.4 | 54.4 | 36.6 | 29.6 | 56.6 |
| Year Lowest Occurred | 1984 | 1984 | 1965 | 1983 | 1983 | 1969 | 1962 | 1968 | 1986 | 1984 | 1972 | 1964 | 1984 |
| Mean Temperature (F) | 17.9 | 24.4 | 33.4 | 41.8 | 50.4 | 59.0 | 63.8 | 61.6 | 55.1 | 44.8 | 32.1 | 20.9 | 42.1 |
| Highest Mean Temperature (F) | 27.1 | 32.1 | 40.8 | 47.3 | 54.1 | 63.0 | 66.7 | 66.6 | 58.6 | 49.7 | 40.2 | 32.5 | 44.4 |
| Year Highest Occurred | 1986 | 1970 | 1989 | 1981 | 1989 | 1990 | 1966 | 1969 | 1983 | 1972 | 1962 | 1962 | 1981 |
| Lowest Mean Temperature (F) | 5.7 | 15.5 | 26.2 | 36.2 | 47.1 | 55.7 | 61.0 | 59.2 | 52.5 | 40.1 | 22.2 | 13.2 | 40.0 |
| Year Lowest Occurred | 1984 | 1979 | 1964 | 1970 | 1983 | 1983 | 1962 | 1974 | 1987 | 1969 | 1972 | 1978 | 1984 |
| Mean Min. Temperature (F) | 0.4 | 7.3 | 17.1 | 24.0 | 32.5 | 40.7 | 46.4 | 44.5 | 37.0 | 25.9 | 14.8 | 3.8 | 24.5 |
| Highest Mean Min. Temperature (F) | 11.2 | 15.8 | 23.5 | 28.6 | 36.8 | 44.8 | 49.5 | 49.3 | 41.2 | 35.9 | 25.9 | 16.9 | 27.1 |
| Year Highest Occurred | 1980 | 1962 | 1974 | 1990 | 1963 | 1990 | 1981 | 1969 | 1990 | 1972 | 1962 | 1962 | 1990 |
| Lowest Mean Min. Temperature (F) | -10.9 | -3.9 | 6.7 | 18.4 | 29.1 | 37.8 | 43.3 | 39.4 | 32.6 | 21.4 | 7.7 | -5.3 | 22.2 |
| Year Lowest Occurred | 1984 | 1963 | 1964 | 1970 | 1961 | 1982 | 1987 | 1962 | 1987 | 1976 | 1972 | 1976 | 1964 |
| Mean Precipitation (in.) | 0.27 | 0.29 | 0.36 | 0.39 | 0.69 | 0.56 | 1.35 | 1.41 | 1.00 | 0.67 | 0.48 | 0.37 | 7.84 |
| Highest Precipitation (in.) | 0.89 | 0.82 | 0.84 | 1.25 | 2.18 | 2.85 | 3.93 | 2.94 | 2.68 | 1.61 | 1.55 | 0.97 | 12.10 |
| Year Highest Occurred | 1987 | 1963 | 1981 | 1986 | 1978 | 1969 | 1977 | 1967 | 1985 | 1984 | 1978 | 1964 | 1969 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.38 | 0.42 | 0.03 | 0.00 | 0.00 | 0.00 | 3.94 |
| Year Lowest Occurred | 1981 | 1970 | 1989 | 1981 | 1975 | 1980 | 1970 | 1978 | 1966 | 1977 | 1989 | 1988 | 1989 |
| Heating Degree Days (F) | 1460. | 1137. | 980. | 696. | 453. | 187. | 66. | 119. | 297. | 626. | 987. | 1367. | 8375. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 29. | 13. | 0. | 0. | 0. | 0. | 49. |