| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 24.3 | 28.5 | 40.2 | 54.7 | 68.0 | 77.4 | 82.0 | 79.2 | 70.7 | 59.0 | 43.6 | 29.3 | 54.7 |
| Highest Mean Max. Temperature (F) | 36.0 | 38.5 | 49.4 | 62.3 | 78.5 | 83.7 | 85.7 | 84.5 | 75.0 | 70.9 | 51.2 | 37.5 | 58.3 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1977 | 1977 | 1988 | 1983 | 1988 | 1971 | 1963 | 1975 | 1982 | 1987 |
| Lowest Mean Max. Temperature (F) | 12.8 | 19.6 | 31.2 | 46.0 | 61.5 | 69.6 | 76.7 | 75.5 | 67.2 | 52.2 | 37.5 | 19.6 | 52.0 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1983 | 1969 | 1962 | 1979 | 1975 | 1988 | 1976 | 1983 | 1972 |
| Mean Temperature (F) | 16.1 | 20.2 | 31.8 | 45.3 | 57.5 | 67.0 | 72.0 | 69.5 | 61.3 | 50.1 | 36.3 | 21.8 | 45.7 |
| Highest Mean Temperature (F) | 28.3 | 30.6 | 39.8 | 51.0 | 65.7 | 71.5 | 75.7 | 74.8 | 65.8 | 60.1 | 42.7 | 30.8 | 49.5 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1985 | 1977 | 1987 | 1983 | 1988 | 1971 | 1963 | 1975 | 1965 | 1987 |
| Lowest Mean Temperature (F) | 3.5 | 10.0 | 24.3 | 38.6 | 51.4 | 60.5 | 67.5 | 65.7 | 57.8 | 44.4 | 28.4 | 11.7 | 43.1 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1967 | 1969 | 1962 | 1967 | 1975 | 1988 | 1976 | 1985 | 1979 |
| Mean Min. Temperature (F) | 7.9 | 11.7 | 23.3 | 35.9 | 46.9 | 56.5 | 61.9 | 59.8 | 51.8 | 41.1 | 29.0 | 14.2 | 36.7 |
| Highest Mean Min. Temperature (F) | 20.5 | 23.3 | 32.4 | 41.0 | 52.9 | 60.8 | 65.6 | 65.1 | 56.5 | 49.2 | 34.1 | 24.5 | 40.7 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1985 | 1977 | 1987 | 1983 | 1988 | 1971 | 1963 | 1975 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | -5.8 | 0.3 | 17.3 | 30.3 | 41.2 | 50.3 | 58.3 | 55.1 | 47.8 | 34.8 | 19.3 | 2.2 | 34.0 |
| Year Lowest Occurred | 1977 | 1979 | 1978 | 1972 | 1967 | 1982 | 1962 | 1967 | 1974 | 1980 | 1976 | 1976 | 1979 |
| Mean Precipitation (in.) | 0.97 | 0.90 | 1.77 | 2.58 | 3.07 | 3.49 | 3.23 | 3.95 | 3.75 | 2.36 | 1.86 | 1.46 | 29.39 |
| Highest Precipitation (in.) | 3.79 | 2.26 | 5.01 | 5.29 | 8.02 | 7.50 | 6.52 | 8.27 | 12.70 | 5.61 | 4.74 | 4.14 | 39.12 |
| Year Highest Occurred | 1982 | 1986 | 1976 | 1978 | 1989 | 1990 | 1964 | 1990 | 1986 | 1967 | 1985 | 1971 | 1978 |
| Lowest Precipitation (in.) | 0.02 | 0.06 | 0.07 | 0.89 | 0.49 | 0.97 | 0.89 | 0.38 | 0.17 | 0.19 | 0.05 | 0.30 | 22.60 |
| Year Lowest Occurred | 1981 | 1970 | 1981 | 1989 | 1981 | 1988 | 1975 | 1969 | 1979 | 1963 | 1976 | 1963 | 1963 |
| Heating Degree Days (F) | 1516. | 1254. | 1029. | 591. | 271. | 54. | 6. | 22. | 129. | 469. | 861. | 1339. | 7541. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 39. | 114. | 223. | 161. | 18. | 7. | 0. | 0. | 562. |