| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.6 | 48.0 | 56.7 | 64.2 | 73.3 | 80.6 | 87.4 | 87.1 | 79.5 | 66.3 | 49.8 | 41.2 | 64.6 |
| Highest Mean Max. Temperature (F) | 49.7 | 55.4 | 62.5 | 72.8 | 78.9 | 86.8 | 96.8 | 96.1 | 86.3 | 75.2 | 55.4 | 46.3 | 68.2 |
| Year Highest Occurred | 1967 | 1967 | 1968 | 1977 | 1983 | 1977 | 1985 | 1967 | 1967 | 1988 | 1990 | 1974 | 1967 |
| Lowest Mean Max. Temperature (F) | 25.0 | 38.9 | 51.5 | 58.7 | 65.2 | 75.1 | 79.9 | 81.0 | 72.2 | 61.9 | 38.1 | 27.3 | 61.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1986 | 1968 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 34.8 | 40.2 | 46.4 | 52.7 | 60.7 | 67.8 | 73.6 | 73.3 | 65.4 | 54.3 | 42.8 | 35.6 | 54.0 |
| Highest Mean Temperature (F) | 43.0 | 45.4 | 52.1 | 58.3 | 65.1 | 73.1 | 81.6 | 80.3 | 71.8 | 61.1 | 46.9 | 40.3 | 57.2 |
| Year Highest Occurred | 1967 | 1968 | 1968 | 1977 | 1968 | 1977 | 1985 | 1967 | 1967 | 1988 | 1990 | 1975 | 1967 |
| Lowest Mean Temperature (F) | 19.0 | 30.4 | 42.2 | 47.6 | 56.0 | 63.8 | 68.7 | 69.1 | 60.2 | 50.0 | 31.5 | 24.3 | 51.7 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1972 | 1962 | 1971 | 1986 | 1975 | 1985 | 1961 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 29.0 | 32.4 | 36.1 | 41.2 | 48.0 | 54.8 | 59.8 | 59.5 | 51.4 | 42.2 | 35.8 | 29.9 | 43.3 |
| Highest Mean Min. Temperature (F) | 37.1 | 37.1 | 41.8 | 44.7 | 53.0 | 59.3 | 66.3 | 65.1 | 57.3 | 47.0 | 41.3 | 34.8 | 46.0 |
| Year Highest Occurred | 1981 | 1983 | 1983 | 1990 | 1968 | 1977 | 1985 | 1977 | 1967 | 1988 | 1983 | 1975 | 1967 |
| Lowest Mean Min. Temperature (F) | 12.9 | 21.8 | 31.7 | 36.1 | 44.3 | 51.9 | 56.9 | 56.2 | 47.3 | 37.9 | 24.9 | 19.8 | 40.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1972 | 1964 | 1976 | 1963 | 1964 | 1972 | 1972 | 1985 | 1972 | 1972 |
| Mean Precipitation (in.) | 2.53 | 1.57 | 1.08 | 0.59 | 0.41 | 0.33 | 0.11 | 0.38 | 0.48 | 0.85 | 2.11 | 2.82 | 13.26 |
| Highest Precipitation (in.) | 7.19 | 4.22 | 3.05 | 1.89 | 1.79 | 1.39 | 0.60 | 1.44 | 1.68 | 2.56 | 5.48 | 8.96 | 22.46 |
| Year Highest Occurred | 1970 | 1983 | 1983 | 1990 | 1990 | 1981 | 1987 | 1983 | 1985 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.17 | 0.13 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.26 | 0.37 | 6.95 |
| Year Lowest Occurred | 1985 | 1967 | 1973 | 1977 | 1964 | 1978 | 1984 | 1988 | 1987 | 1988 | 1969 | 1976 | 1976 |
| Heating Degree Days (F) | 936. | 694. | 577. | 369. | 156. | 46. | 9. | 12. | 92. | 332. | 666. | 911. | 4800. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 23. | 130. | 276. | 269. | 104. | 0. | 0. | 0. | 802. |