| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.9 | 43.9 | 46.0 | 52.9 | 62.6 | 71.7 | 80.5 | 80.0 | 72.9 | 62.2 | 47.4 | 41.6 | 58.6 |
| Highest Mean Max. Temperature (F) | 48.2 | 50.8 | 52.7 | 61.5 | 70.9 | 79.0 | 84.9 | 87.3 | 81.2 | 73.8 | 58.2 | 52.4 | 61.0 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1966 | 1973 | 1961 | 1973 | 1967 | 1974 | 1988 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 35.4 | 34.8 | 40.2 | 39.0 | 51.2 | 63.9 | 71.2 | 70.4 | 59.1 | 50.5 | 38.5 | 34.1 | 55.8 |
| Year Lowest Occurred | 1987 | 1969 | 1987 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1984 | 1971 | 1983 |
| Mean Temperature (F) | 31.7 | 33.5 | 35.6 | 40.4 | 47.9 | 55.6 | 61.6 | 61.0 | 55.2 | 47.2 | 37.3 | 32.1 | 44.9 |
| Highest Mean Temperature (F) | 36.8 | 41.6 | 40.9 | 46.4 | 53.9 | 61.0 | 65.5 | 67.6 | 61.6 | 53.7 | 43.2 | 38.4 | 46.4 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1990 | 1973 | 1961 | 1988 | 1967 | 1967 | 1988 | 1967 | 1962 | 1988 |
| Lowest Mean Temperature (F) | 27.0 | 26.6 | 31.9 | 31.4 | 41.0 | 49.4 | 55.6 | 54.6 | 46.5 | 39.5 | 31.1 | 25.6 | 42.8 |
| Year Lowest Occurred | 1987 | 1990 | 1977 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1985 | 1971 | 1975 |
| Mean Min. Temperature (F) | 21.4 | 23.1 | 25.1 | 27.9 | 33.1 | 39.4 | 42.6 | 41.8 | 37.5 | 32.1 | 27.1 | 22.5 | 31.1 |
| Highest Mean Min. Temperature (F) | 28.8 | 32.3 | 29.5 | 32.4 | 36.9 | 43.3 | 46.4 | 47.8 | 43.3 | 36.4 | 31.9 | 28.8 | 32.7 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1973 | 1989 | 1988 | 1967 | 1967 | 1963 | 1967 | 1981 | 1970 |
| Lowest Mean Min. Temperature (F) | 16.5 | 12.2 | 20.8 | 20.6 | 30.4 | 34.8 | 38.4 | 37.9 | 33.8 | 28.0 | 21.1 | 14.0 | 28.5 |
| Year Lowest Occurred | 1989 | 1990 | 1977 | 1975 | 1975 | 1980 | 1983 | 1979 | 1986 | 1975 | 1985 | 1990 | 1975 |
| Mean Precipitation (in.) | 9.18 | 7.30 | 7.58 | 3.85 | 2.09 | 1.28 | 0.27 | 0.74 | 1.49 | 4.25 | 8.27 | 8.37 | 54.67 |
| Highest Precipitation (in.) | 27.40 | 28.33 | 24.23 | 13.77 | 8.43 | 3.92 | 2.55 | 4.14 | 6.00 | 23.44 | 25.93 | 25.85 | 113.10 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1971 | 1974 | 1968 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.55 | 0.46 | 2.01 | 0.36 | 0.01 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 1.20 | 0.00 | 17.93 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1968 | 1976 | 1979 | 1990 | 1988 | 1988 | 1978 | 1976 | 1989 | 1976 |
| Heating Degree Days (F) | 1032. | 882. | 911. | 738. | 530. | 288. | 146. | 167. | 306. | 552. | 831. | 1020. | 7403. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 40. | 43. | 12. | 0. | 0. | 0. | 101. |