| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.8 | 50.5 | 53.7 | 57.4 | 63.1 | 67.9 | 72.7 | 73.6 | 70.9 | 62.3 | 52.4 | 46.7 | 59.8 |
| Highest Mean Max. Temperature (F) | 54.6 | 57.7 | 59.0 | 63.0 | 67.3 | 73.0 | 78.2 | 81.0 | 78.8 | 69.1 | 58.2 | 51.1 | 62.2 |
| Year Highest Occurred | 1981 | 1968 | 1965 | 1989 | 1963 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 37.9 | 43.2 | 48.5 | 52.1 | 57.6 | 61.7 | 67.8 | 68.1 | 66.5 | 56.5 | 43.4 | 39.7 | 57.5 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1971 | 1986 | 1980 | 1986 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 39.5 | 42.1 | 44.3 | 47.3 | 52.4 | 57.1 | 60.9 | 61.4 | 58.2 | 51.3 | 44.5 | 40.1 | 49.9 |
| Highest Mean Temperature (F) | 45.2 | 48.7 | 48.0 | 50.7 | 56.1 | 60.2 | 64.0 | 64.9 | 62.5 | 54.9 | 47.6 | 45.3 | 51.5 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1983 | 1970 | 1985 | 1967 | 1963 | 1965 | 1965 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 31.8 | 34.2 | 40.5 | 43.1 | 48.8 | 53.8 | 58.5 | 57.7 | 55.0 | 47.4 | 35.9 | 33.5 | 48.2 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1975 | 1974 | 1976 | 1986 | 1973 | 1970 | 1984 | 1985 | 1990 | 1975 |
| Mean Min. Temperature (F) | 32.2 | 33.7 | 34.9 | 37.2 | 41.6 | 46.4 | 49.2 | 49.2 | 45.6 | 40.1 | 36.6 | 33.4 | 40.0 |
| Highest Mean Min. Temperature (F) | 37.6 | 39.9 | 39.1 | 40.7 | 45.0 | 51.1 | 51.4 | 52.1 | 50.5 | 46.1 | 41.7 | 39.4 | 42.5 |
| Year Highest Occurred | 1983 | 1963 | 1983 | 1990 | 1983 | 1969 | 1983 | 1963 | 1963 | 1963 | 1965 | 1979 | 1963 |
| Lowest Mean Min. Temperature (F) | 23.1 | 25.2 | 30.2 | 32.1 | 38.7 | 42.8 | 44.8 | 44.0 | 42.4 | 35.1 | 28.3 | 27.3 | 37.5 |
| Year Lowest Occurred | 1979 | 1989 | 1969 | 1975 | 1977 | 1976 | 1969 | 1984 | 1975 | 1983 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 16.35 | 13.16 | 11.71 | 7.38 | 4.96 | 3.48 | 2.05 | 2.60 | 4.74 | 9.59 | 16.07 | 17.33 | 109.42 |
| Highest Precipitation (in.) | 30.32 | 25.48 | 19.33 | 13.51 | 9.98 | 7.90 | 6.79 | 7.86 | 10.53 | 25.42 | 29.26 | 32.69 | 136.06 |
| Year Highest Occurred | 1967 | 1961 | 1971 | 1981 | 1984 | 1981 | 1983 | 1968 | 1970 | 1975 | 1983 | 1975 | 1968 |
| Lowest Precipitation (in.) | 1.27 | 3.70 | 1.83 | 2.68 | 1.12 | 0.92 | 0.00 | 0.17 | 0.53 | 0.61 | 3.76 | 5.33 | 75.69 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1982 | 1987 | 1984 | 1970 | 1975 | 1987 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 791. | 641. | 642. | 531. | 391. | 237. | 136. | 135. | 211. | 425. | 615. | 772. | 5527. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 9. | 24. | 7. | 0. | 0. | 0. | 40. |