| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.9 | 48.6 | 58.2 | 65.9 | 74.4 | 82.4 | 89.0 | 88.4 | 79.3 | 67.1 | 50.6 | 39.8 | 65.3 |
| Highest Mean Max. Temperature (F) | 50.5 | 56.8 | 62.6 | 72.3 | 78.7 | 88.7 | 97.0 | 95.6 | 87.3 | 75.8 | 56.9 | 46.4 | 68.9 |
| Year Highest Occurred | 1967 | 1967 | 1981 | 1977 | 1987 | 1986 | 1985 | 1967 | 1967 | 1988 | 1990 | 1966 | 1967 |
| Lowest Mean Max. Temperature (F) | 23.2 | 37.9 | 51.7 | 59.4 | 67.9 | 75.5 | 83.5 | 81.9 | 72.5 | 62.8 | 37.7 | 26.9 | 62.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1968 | 1986 | 1968 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 32.1 | 38.5 | 45.6 | 52.2 | 59.8 | 67.5 | 72.2 | 71.4 | 63.0 | 52.0 | 40.9 | 32.4 | 52.3 |
| Highest Mean Temperature (F) | 40.5 | 43.5 | 49.7 | 57.4 | 63.0 | 72.8 | 78.0 | 75.6 | 69.0 | 60.1 | 45.6 | 38.7 | 54.6 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1990 | 1987 | 1986 | 1985 | 1977 | 1990 | 1988 | 1988 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 15.9 | 28.6 | 40.6 | 47.5 | 55.8 | 62.5 | 67.7 | 66.8 | 58.3 | 48.8 | 28.9 | 22.5 | 50.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1964 | 1970 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 24.3 | 28.3 | 33.0 | 38.5 | 45.2 | 52.5 | 55.3 | 54.3 | 46.7 | 36.8 | 31.2 | 24.9 | 39.3 |
| Highest Mean Min. Temperature (F) | 32.8 | 33.8 | 38.4 | 42.9 | 47.8 | 57.7 | 59.9 | 58.3 | 51.1 | 44.3 | 36.7 | 31.0 | 41.2 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1989 | 1972 | 1969 | 1990 | 1977 | 1990 | 1988 | 1983 | 1966 | 1988 |
| Lowest Mean Min. Temperature (F) | 8.6 | 19.3 | 29.0 | 34.4 | 42.5 | 47.6 | 51.8 | 50.0 | 42.7 | 34.1 | 20.0 | 17.4 | 37.3 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1982 | 1977 | 1976 | 1963 | 1969 | 1970 | 1978 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 0.86 | 0.55 | 0.55 | 0.49 | 0.50 | 0.37 | 0.15 | 0.32 | 0.44 | 0.47 | 0.92 | 1.07 | 6.69 |
| Highest Precipitation (in.) | 2.86 | 1.71 | 2.12 | 1.59 | 2.40 | 1.28 | 1.03 | 1.41 | 2.62 | 1.77 | 3.20 | 3.02 | 12.65 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1963 | 1972 | 1980 | 1966 | 1977 | 1986 | 1982 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.06 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 2.84 |
| Year Lowest Occurred | 1984 | 1988 | 1968 | 1985 | 1966 | 1987 | 1990 | 1988 | 1990 | 1988 | 1990 | 1976 | 1976 |
| Heating Degree Days (F) | 1020. | 742. | 601. | 384. | 173. | 50. | 9. | 16. | 125. | 403. | 723. | 1011. | 5257. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 12. | 125. | 232. | 214. | 65. | 0. | 0. | 0. | 648. |