| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.1 | 39.8 | 46.3 | 53.6 | 62.2 | 70.4 | 77.8 | 77.9 | 69.3 | 57.3 | 42.1 | 35.1 | 55.5 |
| Highest Mean Max. Temperature (F) | 40.1 | 46.3 | 51.7 | 60.7 | 68.5 | 76.6 | 86.3 | 87.4 | 80.4 | 68.1 | 46.8 | 42.3 | 58.6 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1977 | 1969 | 1986 | 1985 | 1967 | 1990 | 1988 | 1989 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 22.9 | 31.2 | 39.7 | 48.8 | 54.4 | 63.3 | 71.3 | 71.5 | 62.2 | 52.0 | 32.0 | 25.8 | 53.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1981 | 1983 | 1968 | 1978 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 28.5 | 33.3 | 38.0 | 43.4 | 50.4 | 57.7 | 63.4 | 63.6 | 56.2 | 46.5 | 36.1 | 29.6 | 45.6 |
| Highest Mean Temperature (F) | 34.9 | 38.1 | 43.0 | 48.4 | 55.1 | 62.5 | 69.6 | 69.9 | 63.7 | 54.2 | 40.6 | 36.2 | 47.5 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1990 | 1969 | 1986 | 1985 | 1967 | 1990 | 1988 | 1989 | 1980 | 1967 |
| Lowest Mean Temperature (F) | 15.9 | 23.2 | 32.6 | 39.3 | 46.0 | 53.4 | 58.8 | 58.8 | 50.9 | 42.9 | 25.0 | 19.7 | 43.1 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1963 | 1964 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 22.8 | 26.7 | 29.7 | 33.2 | 38.5 | 45.0 | 48.9 | 49.3 | 43.0 | 35.7 | 30.1 | 24.0 | 35.6 |
| Highest Mean Min. Temperature (F) | 30.0 | 31.9 | 34.7 | 37.0 | 41.8 | 50.3 | 53.3 | 54.4 | 48.0 | 40.3 | 34.4 | 30.4 | 37.2 |
| Year Highest Occurred | 1990 | 1961 | 1983 | 1990 | 1987 | 1969 | 1975 | 1977 | 1963 | 1988 | 1989 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 8.8 | 15.2 | 25.3 | 29.7 | 35.6 | 41.5 | 45.2 | 45.9 | 38.7 | 32.9 | 17.9 | 13.6 | 32.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1963 | 1964 | 1985 | 1970 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 6.12 | 3.99 | 3.39 | 1.68 | 1.11 | 0.74 | 0.30 | 0.64 | 1.11 | 2.27 | 5.12 | 6.25 | 32.72 |
| Highest Precipitation (in.) | 13.67 | 10.86 | 7.16 | 3.16 | 2.96 | 2.98 | 1.24 | 2.96 | 3.19 | 5.61 | 10.92 | 15.05 | 45.49 |
| Year Highest Occurred | 1970 | 1961 | 1961 | 1990 | 1962 | 1981 | 1983 | 1968 | 1972 | 1967 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.28 | 0.52 | 0.97 | 0.12 | 0.08 | 0.07 | 0.00 | 0.00 | 0.00 | 0.05 | 0.78 | 1.42 | 20.07 |
| Year Lowest Occurred | 1985 | 1964 | 1981 | 1977 | 1967 | 1979 | 1984 | 1984 | 1975 | 1988 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1132. | 888. | 837. | 648. | 453. | 234. | 105. | 117. | 283. | 574. | 867. | 1097. | 7235. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 15. | 55. | 74. | 19. | 0. | 0. | 0. | 163. |