| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.4 | 37.4 | 46.9 | 56.7 | 65.7 | 74.4 | 82.6 | 82.7 | 72.4 | 59.1 | 41.1 | 31.6 | 56.8 |
| Highest Mean Max. Temperature (F) | 38.9 | 43.6 | 52.1 | 64.3 | 71.0 | 82.3 | 90.8 | 90.1 | 81.5 | 66.0 | 46.3 | 38.9 | 59.3 |
| Year Highest Occurred | 1967 | 1968 | 1981 | 1977 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1966 | 1966 | 1987 |
| Lowest Mean Max. Temperature (F) | 18.5 | 28.3 | 40.4 | 51.7 | 59.8 | 66.9 | 75.0 | 76.4 | 63.3 | 55.0 | 27.3 | 21.1 | 53.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1984 | 1981 | 1983 | 1964 | 1985 | 1990 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 24.0 | 30.2 | 37.5 | 44.7 | 52.4 | 59.9 | 66.3 | 66.2 | 57.4 | 46.1 | 34.1 | 25.5 | 45.4 |
| Highest Mean Temperature (F) | 32.9 | 36.2 | 41.4 | 49.9 | 55.7 | 66.0 | 71.1 | 72.1 | 64.3 | 51.8 | 37.8 | 32.6 | 47.2 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1987 | 1969 | 1961 | 1985 | 1961 | 1963 | 1988 | 1990 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 11.1 | 19.2 | 30.8 | 40.4 | 48.3 | 54.7 | 61.1 | 61.7 | 50.6 | 40.9 | 18.7 | 14.4 | 40.8 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1967 | 1984 | 1981 | 1986 | 1985 | 1985 | 1984 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 17.6 | 22.9 | 28.0 | 32.7 | 39.1 | 45.4 | 49.9 | 49.7 | 42.3 | 33.0 | 27.1 | 19.2 | 33.9 |
| Highest Mean Min. Temperature (F) | 27.8 | 30.0 | 32.5 | 37.6 | 42.9 | 50.4 | 54.6 | 55.3 | 49.2 | 38.1 | 31.7 | 28.2 | 35.8 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1980 | 1980 | 1969 | 1975 | 1961 | 1963 | 1979 | 1983 | 1962 | 1961 |
| Lowest Mean Min. Temperature (F) | 3.6 | 9.9 | 19.7 | 28.4 | 34.6 | 40.0 | 44.1 | 42.4 | 36.5 | 26.5 | 10.0 | 6.8 | 28.6 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1968 | 1966 | 1966 | 1966 | 1966 | 1984 | 1984 | 1985 | 1984 | 1985 |
| Mean Precipitation (in.) | 1.51 | 1.29 | 1.34 | 1.01 | 1.26 | 0.95 | 0.65 | 0.57 | 0.71 | 0.90 | 2.00 | 2.08 | 14.27 |
| Highest Precipitation (in.) | 3.85 | 3.77 | 2.45 | 2.50 | 2.72 | 2.09 | 1.95 | 1.41 | 1.76 | 2.23 | 5.59 | 4.48 | 20.97 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1978 | 1980 | 1983 | 1982 | 1972 | 1986 | 1990 | 1973 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.32 | 0.09 | 0.13 | 0.07 | 0.10 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.32 | 8.51 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1982 | 1986 | 1988 | 1988 | 1990 | 1978 | 1976 | 1989 | 1976 |
| Heating Degree Days (F) | 1271. | 974. | 853. | 609. | 391. | 186. | 64. | 91. | 259. | 586. | 927. | 1225. | 7436. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 33. | 104. | 128. | 31. | 0. | 0. | 0. | 296. |