| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 27.1 | 31.7 | 41.4 | 53.8 | 64.7 | 75.2 | 81.3 | 78.9 | 70.5 | 60.3 | 42.3 | 29.6 | 54.7 |
| Highest Mean Max. Temperature (F) | 40.5 | 42.4 | 51.3 | 61.2 | 70.8 | 80.8 | 85.7 | 84.2 | 76.2 | 68.0 | 49.0 | 42.7 | 58.6 |
| Year Highest Occurred | 1981 | 1981 | 1972 | 1981 | 1963 | 1990 | 1966 | 1969 | 1979 | 1963 | 1962 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 12.5 | 22.4 | 27.2 | 45.1 | 58.6 | 68.4 | 76.5 | 75.0 | 63.7 | 49.3 | 34.0 | 17.3 | 50.6 |
| Year Lowest Occurred | 1984 | 1984 | 1965 | 1984 | 1983 | 1969 | 1986 | 1968 | 1961 | 1969 | 1968 | 1966 | 1984 |
| Mean Temperature (F) | 11.7 | 15.5 | 26.7 | 37.7 | 46.8 | 55.5 | 61.8 | 59.4 | 50.6 | 40.5 | 26.7 | 14.5 | 37.3 |
| Highest Mean Temperature (F) | 22.2 | 25.3 | 34.8 | 42.7 | 50.4 | 61.3 | 64.4 | 63.6 | 54.9 | 45.9 | 31.7 | 27.3 | 41.6 |
| Year Highest Occurred | 1969 | 1987 | 1986 | 1981 | 1963 | 1988 | 1966 | 1983 | 1963 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | -1.2 | 6.8 | 12.3 | 31.9 | 43.6 | 51.8 | 59.6 | 56.4 | 46.2 | 34.9 | 18.5 | 3.8 | 34.1 |
| Year Lowest Occurred | 1984 | 1974 | 1965 | 1970 | 1975 | 1975 | 1982 | 1975 | 1961 | 1970 | 1979 | 1966 | 1968 |
| Mean Min. Temperature (F) | -3.7 | -0.7 | 12.0 | 21.6 | 28.8 | 35.8 | 42.3 | 39.8 | 30.5 | 20.6 | 11.0 | -0.6 | 19.8 |
| Highest Mean Min. Temperature (F) | 9.6 | 13.9 | 20.5 | 27.8 | 34.2 | 42.1 | 47.5 | 46.5 | 35.6 | 27.0 | 15.7 | 11.9 | 24.9 |
| Year Highest Occurred | 1971 | 1986 | 1986 | 1986 | 1985 | 1988 | 1984 | 1983 | 1982 | 1972 | 1981 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -16.9 | -11.9 | -2.6 | 16.1 | 25.0 | 32.4 | 38.3 | 34.8 | 25.7 | 14.0 | 2.6 | -9.7 | 16.0 |
| Year Lowest Occurred | 1973 | 1985 | 1965 | 1970 | 1970 | 1966 | 1972 | 1975 | 1968 | 1976 | 1979 | 1966 | 1968 |
| Mean Precipitation (in.) | 0.87 | 0.63 | 0.77 | 0.88 | 1.32 | 1.12 | 1.53 | 1.65 | 1.25 | 1.01 | 0.85 | 0.91 | 12.79 |
| Highest Precipitation (in.) | 1.88 | 2.24 | 1.60 | 2.19 | 2.62 | 4.32 | 4.06 | 3.72 | 5.20 | 3.77 | 4.01 | 3.38 | 19.43 |
| Year Highest Occurred | 1962 | 1986 | 1964 | 1961 | 1981 | 1969 | 1973 | 1963 | 1961 | 1969 | 1985 | 1983 | 1961 |
| Lowest Precipitation (in.) | 0.09 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.27 | 0.56 | 0.05 | 0.00 | 0.00 | 0.10 | 8.44 |
| Year Lowest Occurred | 1981 | 1988 | 1988 | 1987 | 1970 | 1987 | 1988 | 1974 | 1979 | 1976 | 1987 | 1976 | 1966 |
| Heating Degree Days (F) | 1652. | 1386. | 1187. | 819. | 564. | 289. | 110. | 181. | 432. | 760. | 1149. | 1566. | 10095. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 11. | 7. | 0. | 0. | 0. | 0. | 18. |