| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.5 | 33.1 | 36.2 | 43.4 | 52.7 | 63.5 | 71.8 | 69.7 | 60.9 | 50.3 | 37.6 | 30.8 | 48.4 |
| Highest Mean Max. Temperature (F) | 38.8 | 38.5 | 43.9 | 49.9 | 59.9 | 69.5 | 75.0 | 72.8 | 68.1 | 57.5 | 42.9 | 39.8 | 51.0 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1969 | 1961 | 1988 | 1969 | 1979 | 1964 | 1976 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 24.1 | 26.7 | 29.2 | 35.2 | 47.1 | 58.2 | 67.2 | 63.2 | 53.7 | 41.2 | 31.0 | 23.9 | 46.6 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1977 | 1975 | 1986 | 1968 | 1965 | 1984 | 1985 | 1971 | 1984 |
| Mean Temperature (F) | 19.1 | 21.0 | 24.6 | 31.7 | 40.5 | 50.1 | 58.1 | 56.2 | 48.0 | 38.3 | 26.8 | 19.7 | 36.2 |
| Highest Mean Temperature (F) | 26.9 | 25.5 | 32.1 | 37.9 | 45.8 | 56.1 | 61.3 | 59.2 | 53.3 | 44.6 | 31.7 | 27.6 | 38.8 |
| Year Highest Occurred | 1982 | 1963 | 1986 | 1981 | 1969 | 1988 | 1988 | 1969 | 1990 | 1988 | 1962 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 12.2 | 12.7 | 17.3 | 24.5 | 36.2 | 45.6 | 55.0 | 51.5 | 41.9 | 30.6 | 20.5 | 12.4 | 34.2 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1983 | 1975 | 1987 | 1968 | 1965 | 1984 | 1979 | 1990 | 1975 |
| Mean Min. Temperature (F) | 7.7 | 8.8 | 12.8 | 19.9 | 28.3 | 36.5 | 44.3 | 42.7 | 35.0 | 26.3 | 16.0 | 8.5 | 23.9 |
| Highest Mean Min. Temperature (F) | 15.0 | 14.7 | 21.3 | 26.6 | 32.3 | 43.2 | 47.6 | 46.8 | 41.4 | 31.9 | 21.3 | 15.3 | 26.5 |
| Year Highest Occurred | 1986 | 1968 | 1986 | 1990 | 1987 | 1988 | 1988 | 1963 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 0.2 | -1.4 | 5.3 | 13.3 | 23.8 | 32.9 | 41.4 | 39.8 | 30.1 | 18.2 | 8.2 | 0.6 | 21.6 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1970 | 1975 | 1975 | 1962 | 1978 | 1965 | 1970 | 1979 | 1990 | 1975 |
| Mean Precipitation (in.) | 4.92 | 4.76 | 5.33 | 4.47 | 2.97 | 1.76 | 1.69 | 1.92 | 2.58 | 3.44 | 4.90 | 4.92 | 43.66 |
| Highest Precipitation (in.) | 13.11 | 11.64 | 11.47 | 9.67 | 7.70 | 6.50 | 3.95 | 5.65 | 8.39 | 8.27 | 9.30 | 13.63 | 65.44 |
| Year Highest Occurred | 1980 | 1986 | 1982 | 1963 | 1981 | 1969 | 1983 | 1968 | 1982 | 1972 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.05 | 1.53 | 1.82 | 0.62 | 0.05 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.48 | 0.10 | 17.10 |
| Year Lowest Occurred | 1961 | 1964 | 1969 | 1987 | 1972 | 1980 | 1988 | 1985 | 1979 | 1965 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1423. | 1232. | 1252. | 999. | 760. | 447. | 217. | 273. | 510. | 828. | 1146. | 1404. | 10491. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |