| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.4 | 40.4 | 45.7 | 53.6 | 62.4 | 71.6 | 81.6 | 81.5 | 71.6 | 60.1 | 43.2 | 34.6 | 56.7 |
| Highest Mean Max. Temperature (F) | 39.5 | 48.2 | 54.7 | 65.0 | 67.8 | 80.6 | 88.1 | 90.7 | 81.3 | 72.6 | 52.7 | 41.5 | 59.7 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1969 | 1961 | 1961 | 1971 | 1990 | 1988 | 1976 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 25.6 | 31.0 | 39.6 | 45.5 | 55.1 | 64.7 | 76.1 | 72.9 | 62.1 | 52.0 | 33.9 | 26.7 | 54.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1986 | 1968 | 1985 | 1969 | 1985 | 1990 | 1984 |
| Mean Temperature (F) | 22.1 | 27.3 | 32.3 | 39.3 | 46.6 | 54.2 | 60.4 | 59.6 | 50.9 | 42.2 | 31.8 | 23.2 | 40.8 |
| Highest Mean Temperature (F) | 30.0 | 35.4 | 39.6 | 46.0 | 50.3 | 59.4 | 64.5 | 65.3 | 57.6 | 50.7 | 36.8 | 30.2 | 42.5 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1969 | 1961 | 1975 | 1971 | 1990 | 1988 | 1976 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 11.2 | 15.7 | 26.5 | 33.4 | 42.9 | 50.6 | 55.8 | 54.3 | 45.3 | 37.5 | 22.5 | 15.3 | 38.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1986 | 1980 | 1985 | 1969 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 9.8 | 14.1 | 18.8 | 24.9 | 30.6 | 36.7 | 39.2 | 37.8 | 30.1 | 24.3 | 20.3 | 11.8 | 24.9 |
| Highest Mean Min. Temperature (F) | 20.5 | 24.4 | 25.0 | 28.0 | 32.7 | 41.1 | 46.1 | 41.6 | 34.8 | 28.8 | 24.2 | 21.8 | 26.7 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1980 | 1969 | 1970 | 1975 | 1983 | 1963 | 1988 | 1966 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | -3.2 | 0.4 | 11.7 | 20.0 | 27.1 | 33.4 | 35.4 | 32.3 | 25.9 | 20.7 | 11.1 | 2.6 | 21.1 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1967 | 1962 | 1986 | 1980 | 1970 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 2.78 | 1.94 | 1.98 | 1.42 | 1.47 | 1.58 | 0.70 | 1.01 | 1.07 | 1.30 | 2.57 | 3.08 | 20.90 |
| Highest Precipitation (in.) | 6.72 | 4.00 | 3.55 | 3.89 | 3.35 | 4.41 | 2.57 | 3.57 | 2.63 | 4.20 | 7.03 | 8.36 | 27.13 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1962 | 1964 | 1975 | 1984 | 1982 | 1962 | 1973 | 1964 | 1984 |
| Lowest Precipitation (in.) | 0.20 | 0.71 | 0.63 | 0.39 | 0.41 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.48 | 0.38 | 13.67 |
| Year Lowest Occurred | 1985 | 1967 | 1968 | 1968 | 1975 | 1986 | 1988 | 1970 | 1974 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 1330. | 1056. | 1014. | 771. | 570. | 327. | 159. | 193. | 429. | 707. | 996. | 1296. | 8848. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 17. | 25. | 6. | 0. | 0. | 0. | 48. |