| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.7 | 46.8 | 53.7 | 60.0 | 67.5 | 74.2 | 80.1 | 80.5 | 74.0 | 63.4 | 49.3 | 41.2 | 61.0 |
| Highest Mean Max. Temperature (F) | 46.7 | 51.7 | 58.3 | 66.2 | 72.6 | 80.9 | 87.6 | 88.3 | 80.4 | 70.5 | 54.0 | 46.2 | 63.4 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1977 | 1969 | 1961 | 1985 | 1967 | 1967 | 1988 | 1990 | 1962 | 1967 |
| Lowest Mean Max. Temperature (F) | 28.4 | 37.2 | 47.9 | 55.2 | 60.4 | 68.3 | 74.5 | 75.1 | 68.2 | 57.6 | 38.7 | 29.3 | 58.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1963 | 1975 | 1978 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 34.5 | 39.0 | 44.1 | 49.2 | 55.7 | 62.1 | 66.8 | 66.7 | 59.9 | 50.8 | 41.9 | 35.4 | 50.5 |
| Highest Mean Temperature (F) | 41.0 | 43.2 | 48.6 | 53.8 | 58.9 | 66.3 | 71.6 | 71.6 | 65.4 | 56.5 | 46.0 | 39.8 | 52.5 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1990 | 1987 | 1961 | 1985 | 1977 | 1967 | 1988 | 1989 | 1974 | 1967 |
| Lowest Mean Temperature (F) | 21.0 | 29.1 | 39.6 | 44.8 | 51.6 | 58.1 | 63.1 | 62.8 | 55.7 | 47.8 | 31.9 | 24.8 | 48.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1976 | 1963 | 1964 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 28.3 | 31.2 | 34.4 | 38.4 | 43.8 | 50.0 | 53.4 | 52.8 | 45.8 | 38.1 | 34.4 | 29.4 | 40.0 |
| Highest Mean Min. Temperature (F) | 35.9 | 36.5 | 39.5 | 41.9 | 46.9 | 54.3 | 56.5 | 56.8 | 50.4 | 42.4 | 38.9 | 34.1 | 41.6 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1990 | 1987 | 1969 | 1975 | 1977 | 1967 | 1988 | 1983 | 1973 | 1967 |
| Lowest Mean Min. Temperature (F) | 13.6 | 21.0 | 30.5 | 34.3 | 40.7 | 45.7 | 50.6 | 49.8 | 42.2 | 34.6 | 25.0 | 20.2 | 37.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1977 | 1976 | 1962 | 1964 | 1961 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 5.42 | 3.91 | 2.93 | 1.63 | 0.95 | 0.69 | 0.25 | 0.59 | 1.14 | 2.20 | 5.11 | 6.00 | 30.82 |
| Highest Precipitation (in.) | 12.94 | 9.96 | 5.96 | 2.91 | 2.62 | 2.72 | 1.17 | 2.64 | 3.69 | 5.59 | 12.66 | 14.94 | 40.84 |
| Year Highest Occurred | 1970 | 1961 | 1971 | 1990 | 1962 | 1981 | 1987 | 1968 | 1982 | 1982 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.27 | 0.70 | 0.78 | 0.14 | 0.11 | 0.06 | 0.00 | 0.00 | 0.00 | 0.01 | 0.92 | 1.26 | 20.51 |
| Year Lowest Occurred | 1985 | 1964 | 1978 | 1977 | 1967 | 1979 | 1984 | 1988 | 1990 | 1988 | 1976 | 1976 | 1978 |
| Heating Degree Days (F) | 946. | 728. | 648. | 474. | 288. | 127. | 39. | 56. | 178. | 440. | 693. | 918. | 5535. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 40. | 95. | 108. | 25. | 0. | 0. | 0. | 268. |