| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.4 | 46.8 | 58.4 | 68.6 | 77.4 | 83.8 | 87.0 | 86.3 | 80.5 | 69.3 | 58.0 | 46.7 | 67.1 |
| Highest Mean Max. Temperature (F) | 53.6 | 58.9 | 66.5 | 77.1 | 86.4 | 87.6 | 90.9 | 91.2 | 87.0 | 79.3 | 64.3 | 56.7 | 70.0 |
| Year Highest Occurred | 1974 | 1976 | 1976 | 1981 | 1962 | 1966 | 1969 | 1988 | 1970 | 1963 | 1975 | 1971 | 1990 |
| Lowest Mean Max. Temperature (F) | 31.8 | 35.5 | 49.7 | 60.5 | 72.1 | 75.7 | 81.4 | 81.4 | 74.4 | 61.5 | 51.1 | 35.3 | 64.0 |
| Year Lowest Occurred | 1977 | 1978 | 1984 | 1961 | 1989 | 1980 | 1979 | 1982 | 1982 | 1976 | 1976 | 1989 | 1979 |
| Mean Temperature (F) | 32.7 | 35.5 | 45.6 | 54.6 | 63.8 | 71.4 | 75.6 | 74.9 | 68.5 | 56.5 | 46.4 | 37.1 | 55.2 |
| Highest Mean Temperature (F) | 44.9 | 45.9 | 52.0 | 60.4 | 71.2 | 75.2 | 78.8 | 78.6 | 74.1 | 63.8 | 54.4 | 45.8 | 58.9 |
| Year Highest Occurred | 1974 | 1990 | 1973 | 1981 | 1962 | 1971 | 1969 | 1975 | 1978 | 1971 | 1985 | 1971 | 1990 |
| Lowest Mean Temperature (F) | 22.1 | 25.2 | 38.2 | 49.2 | 59.8 | 65.7 | 72.5 | 71.6 | 63.3 | 51.0 | 39.2 | 27.1 | 53.4 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1961 | 1973 | 1972 | 1979 | 1976 | 1967 | 1976 | 1976 | 1989 | 1963 |
| Mean Min. Temperature (F) | 22.9 | 24.1 | 32.7 | 40.6 | 50.1 | 59.0 | 64.2 | 63.4 | 56.5 | 43.6 | 34.8 | 27.5 | 43.3 |
| Highest Mean Min. Temperature (F) | 36.2 | 33.9 | 39.1 | 44.5 | 55.9 | 64.6 | 67.9 | 66.6 | 63.2 | 53.7 | 45.5 | 34.9 | 47.8 |
| Year Highest Occurred | 1974 | 1990 | 1990 | 1985 | 1962 | 1989 | 1989 | 1978 | 1978 | 1984 | 1985 | 1971 | 1990 |
| Lowest Mean Min. Temperature (F) | 12.3 | 14.9 | 24.4 | 34.5 | 45.5 | 53.6 | 61.1 | 59.6 | 48.9 | 38.0 | 27.2 | 18.8 | 40.1 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1975 | 1973 | 1972 | 1963 | 1976 | 1967 | 1964 | 1976 | 1989 | 1963 |
| Mean Precipitation (in.) | 3.16 | 3.34 | 3.78 | 3.87 | 4.68 | 4.43 | 5.35 | 4.40 | 3.49 | 3.13 | 3.49 | 3.64 | 46.76 |
| Highest Precipitation (in.) | 7.08 | 6.56 | 8.50 | 8.23 | 9.47 | 9.35 | 9.31 | 12.81 | 6.75 | 5.91 | 7.39 | 9.98 | 63.56 |
| Year Highest Occurred | 1979 | 1972 | 1975 | 1972 | 1974 | 1979 | 1971 | 1977 | 1976 | 1976 | 1985 | 1978 | 1979 |
| Lowest Precipitation (in.) | 1.26 | 0.65 | 1.48 | 0.85 | 1.36 | 0.94 | 2.66 | 0.85 | 0.47 | 0.00 | 0.86 | 0.46 | 35.89 |
| Year Lowest Occurred | 1981 | 1968 | 1988 | 1976 | 1966 | 1966 | 1974 | 1981 | 1978 | 1963 | 1965 | 1965 | 1988 |
| Heating Degree Days (F) | 1001. | 826. | 601. | 318. | 121. | 14. | 0. | 0. | 43. | 288. | 558. | 865. | 4635. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 84. | 206. | 329. | 307. | 148. | 25. | 0. | 0. | 1105. |