| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.9 | 43.9 | 54.0 | 63.7 | 73.9 | 84.9 | 92.8 | 90.1 | 80.4 | 67.1 | 51.3 | 38.7 | 64.8 |
| Highest Mean Max. Temperature (F) | 45.8 | 52.6 | 63.1 | 71.7 | 80.5 | 91.2 | 97.7 | 92.6 | 87.5 | 74.7 | 59.2 | 48.1 | 67.1 |
| Year Highest Occurred | 1969 | 1970 | 1972 | 1987 | 1969 | 1974 | 1988 | 1988 | 1979 | 1988 | 1966 | 1977 | 1981 |
| Lowest Mean Max. Temperature (F) | 26.7 | 32.1 | 41.8 | 55.1 | 66.6 | 77.8 | 88.3 | 83.0 | 72.2 | 58.2 | 45.2 | 29.9 | 60.7 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1975 | 1983 | 1964 | 1965 | 1968 | 1965 | 1984 | 1961 | 1985 | 1984 |
| Mean Temperature (F) | 26.4 | 32.4 | 40.6 | 48.7 | 57.7 | 67.4 | 75.6 | 73.2 | 63.6 | 51.6 | 39.2 | 28.3 | 50.4 |
| Highest Mean Temperature (F) | 35.5 | 39.5 | 47.2 | 53.9 | 62.8 | 72.7 | 79.7 | 76.4 | 69.9 | 58.5 | 45.3 | 36.5 | 52.5 |
| Year Highest Occurred | 1969 | 1970 | 1986 | 1989 | 1969 | 1988 | 1988 | 1982 | 1990 | 1963 | 1965 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 18.7 | 21.0 | 29.4 | 42.1 | 51.9 | 62.8 | 73.1 | 68.6 | 57.4 | 45.6 | 33.2 | 20.5 | 47.1 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1975 | 1983 | 1964 | 1970 | 1968 | 1971 | 1984 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 15.8 | 20.8 | 27.3 | 33.5 | 41.4 | 49.8 | 58.4 | 56.3 | 46.8 | 36.1 | 27.0 | 17.9 | 35.9 |
| Highest Mean Min. Temperature (F) | 25.2 | 28.1 | 33.8 | 38.4 | 45.7 | 54.2 | 63.0 | 60.3 | 53.3 | 43.8 | 33.4 | 24.8 | 37.9 |
| Year Highest Occurred | 1969 | 1986 | 1978 | 1990 | 1966 | 1988 | 1966 | 1963 | 1990 | 1963 | 1965 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 6.9 | 7.9 | 17.0 | 29.0 | 36.5 | 45.6 | 55.7 | 51.5 | 38.9 | 31.5 | 20.9 | 8.3 | 33.5 |
| Year Lowest Occurred | 1989 | 1964 | 1964 | 1982 | 1975 | 1975 | 1982 | 1974 | 1971 | 1976 | 1979 | 1990 | 1984 |
| Mean Precipitation (in.) | 0.81 | 0.86 | 1.01 | 1.12 | 1.08 | 0.82 | 0.86 | 0.98 | 0.99 | 1.07 | 0.92 | 0.87 | 11.39 |
| Highest Precipitation (in.) | 2.47 | 2.40 | 2.55 | 2.92 | 2.64 | 2.44 | 3.67 | 2.69 | 5.30 | 2.83 | 2.69 | 3.44 | 19.34 |
| Year Highest Occurred | 1980 | 1962 | 1978 | 1971 | 1981 | 1967 | 1982 | 1961 | 1982 | 1981 | 1983 | 1966 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.06 | 0.14 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.02 | 0.07 | 4.77 |
| Year Lowest Occurred | 1961 | 1964 | 1966 | 1977 | 1974 | 1978 | 1964 | 1962 | 1979 | 1978 | 1977 | 1986 | 1976 |
| Heating Degree Days (F) | 1197. | 913. | 756. | 489. | 241. | 59. | 0. | 0. | 121. | 420. | 774. | 1138. | 6108. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 14. | 131. | 329. | 254. | 79. | 0. | 0. | 0. | 807. |