| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.3 | 47.1 | 51.4 | 58.5 | 67.3 | 76.2 | 84.2 | 84.0 | 77.4 | 67.8 | 52.9 | 44.4 | 62.9 |
| Highest Mean Max. Temperature (F) | 54.1 | 56.2 | 59.3 | 68.3 | 73.8 | 82.3 | 87.7 | 90.2 | 84.0 | 76.4 | 62.3 | 53.2 | 65.9 |
| Year Highest Occurred | 1961 | 1977 | 1972 | 1987 | 1966 | 1961 | 1961 | 1981 | 1974 | 1978 | 1976 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 37.4 | 39.1 | 46.1 | 44.4 | 56.2 | 70.8 | 79.1 | 76.2 | 67.1 | 58.6 | 44.9 | 36.2 | 60.2 |
| Year Lowest Occurred | 1972 | 1989 | 1962 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1985 | 1967 | 1971 |
| Mean Temperature (F) | 29.6 | 33.4 | 38.2 | 43.5 | 51.3 | 58.9 | 64.3 | 63.4 | 57.1 | 48.9 | 38.3 | 30.8 | 46.5 |
| Highest Mean Temperature (F) | 38.5 | 42.8 | 44.2 | 49.8 | 56.1 | 63.7 | 67.1 | 67.6 | 61.2 | 53.9 | 43.3 | 38.1 | 49.5 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1966 | 1977 | 1984 | 1981 | 1981 | 1988 | 1976 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 22.3 | 25.6 | 31.4 | 34.4 | 44.2 | 54.9 | 60.0 | 59.1 | 51.2 | 43.2 | 29.6 | 22.0 | 44.2 |
| Year Lowest Occurred | 1972 | 1969 | 1969 | 1967 | 1977 | 1964 | 1963 | 1968 | 1986 | 1984 | 1985 | 1967 | 1985 |
| Mean Min. Temperature (F) | 15.7 | 19.7 | 25.0 | 28.5 | 35.3 | 41.6 | 44.3 | 42.7 | 36.7 | 29.9 | 23.7 | 17.2 | 30.0 |
| Highest Mean Min. Temperature (F) | 25.1 | 29.6 | 31.9 | 33.9 | 38.8 | 45.2 | 47.3 | 46.1 | 42.7 | 34.4 | 30.4 | 27.5 | 33.1 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1965 | 1987 | 1977 | 1971 | 1977 | 1963 | 1963 | 1970 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 7.2 | 6.8 | 15.7 | 23.3 | 31.4 | 37.3 | 39.1 | 37.6 | 30.8 | 24.5 | 14.2 | 7.5 | 26.7 |
| Year Lowest Occurred | 1972 | 1964 | 1969 | 1975 | 1988 | 1979 | 1963 | 1985 | 1964 | 1973 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 4.66 | 3.95 | 3.31 | 1.43 | 1.04 | 0.63 | 0.28 | 0.44 | 0.73 | 2.00 | 4.35 | 4.12 | 26.94 |
| Highest Precipitation (in.) | 16.68 | 19.37 | 8.50 | 5.81 | 3.88 | 2.78 | 2.23 | 2.55 | 4.16 | 15.39 | 14.79 | 17.49 | 50.52 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1963 | 1971 | 1969 | 1974 | 1976 | 1982 | 1962 | 1981 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.23 | 0.00 | 0.14 | 0.12 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.35 | 0.00 | 12.40 |
| Year Lowest Occurred | 1976 | 1988 | 1988 | 1968 | 1985 | 1987 | 1989 | 1988 | 1987 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 1097. | 885. | 831. | 645. | 425. | 195. | 72. | 100. | 250. | 499. | 801. | 1060. | 6860. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 50. | 50. | 13. | 0. | 0. | 0. | 125. |