| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.9 | 45.8 | 52.1 | 60.0 | 69.1 | 77.5 | 85.8 | 84.9 | 77.3 | 66.5 | 50.0 | 41.1 | 62.5 |
| Highest Mean Max. Temperature (F) | 48.8 | 54.4 | 59.7 | 68.6 | 75.9 | 85.2 | 90.3 | 91.3 | 84.7 | 75.5 | 61.0 | 48.4 | 64.5 |
| Year Highest Occurred | 1961 | 1963 | 1978 | 1977 | 1973 | 1961 | 1985 | 1967 | 1974 | 1988 | 1976 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 24.9 | 34.7 | 47.1 | 48.2 | 61.0 | 71.8 | 79.3 | 77.8 | 66.1 | 57.7 | 41.4 | 32.3 | 60.1 |
| Year Lowest Occurred | 1977 | 1989 | 1962 | 1967 | 1977 | 1964 | 1987 | 1976 | 1986 | 1984 | 1985 | 1990 | 1989 |
| Mean Temperature (F) | 29.6 | 34.9 | 39.9 | 45.6 | 53.3 | 60.8 | 67.2 | 66.1 | 58.9 | 49.9 | 38.4 | 30.8 | 48.0 |
| Highest Mean Temperature (F) | 37.4 | 43.5 | 46.1 | 52.0 | 58.8 | 66.2 | 71.3 | 70.4 | 63.9 | 57.0 | 42.3 | 37.4 | 49.8 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1973 | 1961 | 1985 | 1967 | 1967 | 1988 | 1976 | 1981 | 1986 |
| Lowest Mean Temperature (F) | 13.1 | 24.3 | 36.2 | 37.2 | 47.4 | 57.1 | 62.8 | 61.2 | 53.0 | 44.8 | 30.5 | 21.4 | 46.2 |
| Year Lowest Occurred | 1977 | 1989 | 1985 | 1967 | 1977 | 1980 | 1963 | 1976 | 1986 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 19.2 | 24.0 | 27.5 | 31.3 | 37.6 | 44.1 | 48.6 | 47.3 | 40.5 | 33.3 | 26.7 | 20.5 | 33.4 |
| Highest Mean Min. Temperature (F) | 27.4 | 32.5 | 32.5 | 38.4 | 43.1 | 49.2 | 52.8 | 53.2 | 44.4 | 39.0 | 31.9 | 29.3 | 36.5 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1987 | 1986 | 1988 | 1986 | 1967 | 1979 | 1973 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 1.2 | 13.8 | 22.2 | 25.7 | 33.7 | 40.0 | 43.7 | 42.9 | 34.1 | 29.5 | 19.6 | 10.5 | 30.9 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1975 | 1978 | 1984 | 1963 | 1962 | 1970 | 1985 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 2.34 | 1.96 | 1.84 | 1.28 | 1.09 | 0.86 | 0.33 | 0.56 | 0.71 | 1.14 | 2.41 | 2.52 | 17.04 |
| Highest Precipitation (in.) | 5.12 | 9.62 | 4.87 | 3.26 | 4.30 | 2.06 | 1.57 | 2.32 | 2.51 | 5.69 | 6.27 | 8.94 | 28.58 |
| Year Highest Occurred | 1970 | 1986 | 1971 | 1988 | 1971 | 1970 | 1987 | 1976 | 1986 | 1962 | 1988 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.41 | 0.24 | 0.24 | 0.22 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.05 | 10.94 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1974 | 1973 | 1989 | 1987 | 1987 | 1988 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1097. | 843. | 778. | 582. | 363. | 157. | 36. | 64. | 211. | 468. | 798. | 1060. | 6457. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 31. | 105. | 98. | 28. | 0. | 0. | 0. | 262. |