| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.1 | 36.9 | 44.1 | 53.9 | 63.7 | 72.3 | 81.3 | 80.9 | 69.3 | 56.8 | 39.6 | 30.8 | 55.0 |
| Highest Mean Max. Temperature (F) | 37.0 | 43.2 | 51.5 | 63.1 | 70.3 | 81.1 | 88.1 | 89.0 | 81.8 | 64.3 | 44.7 | 37.5 | 57.5 |
| Year Highest Occurred | 1986 | 1963 | 1981 | 1987 | 1966 | 1988 | 1985 | 1971 | 1990 | 1988 | 1990 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 17.4 | 22.8 | 37.7 | 43.5 | 57.9 | 66.9 | 74.7 | 72.9 | 55.9 | 48.7 | 23.3 | 18.2 | 52.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1975 | 1975 | 1986 | 1980 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 20.5 | 26.0 | 31.6 | 40.0 | 48.3 | 55.8 | 61.5 | 60.5 | 50.9 | 41.7 | 29.6 | 21.5 | 40.7 |
| Highest Mean Temperature (F) | 28.1 | 33.1 | 39.3 | 46.9 | 52.1 | 62.4 | 66.2 | 66.4 | 57.8 | 46.8 | 36.0 | 29.4 | 42.7 |
| Year Highest Occurred | 1986 | 1961 | 1986 | 1987 | 1966 | 1988 | 1985 | 1971 | 1967 | 1988 | 1989 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 3.7 | 10.5 | 21.4 | 31.7 | 44.4 | 52.5 | 56.7 | 54.7 | 42.5 | 36.4 | 14.8 | 6.3 | 38.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1975 | 1975 | 1986 | 1980 | 1965 | 1984 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 10.9 | 15.1 | 19.1 | 26.0 | 32.8 | 39.3 | 41.7 | 40.2 | 32.5 | 26.5 | 19.6 | 12.1 | 26.3 |
| Highest Mean Min. Temperature (F) | 20.0 | 25.9 | 27.7 | 31.2 | 36.5 | 43.6 | 47.5 | 45.4 | 38.0 | 31.7 | 27.9 | 21.2 | 29.1 |
| Year Highest Occurred | 1990 | 1961 | 1986 | 1981 | 1981 | 1988 | 1975 | 1983 | 1966 | 1967 | 1989 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -10.1 | -1.9 | 5.1 | 19.8 | 29.0 | 35.2 | 37.8 | 36.5 | 27.8 | 21.8 | 6.2 | -5.7 | 23.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1963 | 1978 | 1984 | 1980 | 1961 | 1974 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 2.13 | 1.39 | 1.22 | 1.41 | 2.34 | 2.01 | 1.16 | 1.40 | 1.33 | 1.16 | 1.38 | 1.95 | 18.88 |
| Highest Precipitation (in.) | 5.94 | 3.19 | 2.60 | 4.54 | 5.46 | 4.26 | 3.95 | 4.83 | 3.78 | 3.75 | 2.55 | 5.37 | 36.02 |
| Year Highest Occurred | 1971 | 1986 | 1989 | 1975 | 1980 | 1975 | 1983 | 1989 | 1985 | 1975 | 1990 | 1977 | 1975 |
| Lowest Precipitation (in.) | 0.46 | 0.26 | 0.27 | 0.06 | 0.70 | 0.23 | 0.04 | 0.00 | 0.09 | 0.06 | 0.30 | 0.35 | 12.26 |
| Year Lowest Occurred | 1987 | 1973 | 1985 | 1977 | 1973 | 1985 | 1973 | 1969 | 1987 | 1965 | 1979 | 1986 | 1973 |
| Heating Degree Days (F) | 1380. | 1092. | 1035. | 750. | 518. | 282. | 138. | 171. | 429. | 722. | 1062. | 1349. | 8928. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 29. | 32. | 6. | 0. | 0. | 0. | 73. |