| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 23.5 | 30.4 | 37.1 | 45.9 | 57.9 | 68.5 | 78.5 | 76.2 | 64.5 | 51.8 | 34.0 | 23.4 | 49.3 |
| Highest Mean Max. Temperature (F) | 31.5 | 39.2 | 44.5 | 56.1 | 66.5 | 77.4 | 84.6 | 83.0 | 74.9 | 61.4 | 40.5 | 31.0 | 51.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1969 | 1961 | 1966 | 1971 | 1990 | 1988 | 1965 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 12.5 | 24.2 | 32.2 | 37.6 | 51.1 | 63.0 | 71.2 | 68.9 | 54.3 | 44.1 | 26.0 | 13.8 | 46.5 |
| Year Lowest Occurred | 1979 | 1985 | 1971 | 1975 | 1975 | 1964 | 1986 | 1968 | 1965 | 1969 | 1985 | 1990 | 1975 |
| Mean Temperature (F) | 11.9 | 17.0 | 23.6 | 33.0 | 43.6 | 52.6 | 59.9 | 57.6 | 47.5 | 37.2 | 23.2 | 12.3 | 35.0 |
| Highest Mean Temperature (F) | 19.2 | 24.8 | 32.2 | 39.1 | 48.6 | 58.7 | 63.1 | 62.8 | 54.4 | 44.0 | 29.4 | 21.1 | 37.1 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1969 | 1988 | 1989 | 1971 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 0.8 | 8.4 | 14.5 | 26.4 | 39.0 | 49.5 | 55.8 | 53.1 | 39.9 | 31.5 | 15.6 | 2.7 | 32.3 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1975 | 1975 | 1975 | 1986 | 1980 | 1965 | 1969 | 1979 | 1990 | 1985 |
| Mean Min. Temperature (F) | 0.2 | 3.6 | 10.1 | 20.0 | 29.2 | 36.6 | 41.3 | 38.9 | 30.5 | 22.6 | 12.4 | 1.1 | 20.5 |
| Highest Mean Min. Temperature (F) | 9.2 | 11.1 | 19.8 | 25.6 | 34.5 | 41.4 | 44.5 | 44.1 | 37.4 | 26.8 | 19.1 | 11.1 | 22.8 |
| Year Highest Occurred | 1978 | 1983 | 1986 | 1990 | 1987 | 1977 | 1975 | 1983 | 1963 | 1963 | 1973 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | -11.5 | -10.1 | -6.3 | 13.0 | 25.6 | 34.2 | 38.8 | 34.8 | 25.5 | 17.8 | 0.7 | -8.4 | 17.3 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1982 | 1982 | 1979 | 1972 | 1985 | 1965 | 1970 | 1979 | 1990 | 1985 |
| Mean Precipitation (in.) | 2.18 | 1.64 | 1.77 | 1.53 | 2.03 | 2.37 | 1.67 | 1.59 | 1.76 | 1.32 | 2.15 | 2.13 | 22.14 |
| Highest Precipitation (in.) | 4.91 | 3.78 | 5.17 | 3.82 | 4.46 | 4.75 | 3.80 | 5.95 | 4.04 | 4.32 | 6.38 | 5.76 | 28.60 |
| Year Highest Occurred | 1965 | 1962 | 1974 | 1965 | 1963 | 1963 | 1985 | 1968 | 1961 | 1961 | 1973 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.34 | 0.37 | 0.34 | 0.41 | 0.70 | 0.66 | 0.42 | 0.07 | 0.05 | 0.00 | 0.13 | 0.11 | 14.32 |
| Year Lowest Occurred | 1961 | 1977 | 1978 | 1977 | 1986 | 1985 | 1961 | 1988 | 1974 | 1978 | 1976 | 1986 | 1979 |
| Heating Degree Days (F) | 1646. | 1344. | 1283. | 960. | 663. | 372. | 170. | 243. | 525. | 862. | 1254. | 1634. | 10956. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 12. | 14. | 0. | 0. | 0. | 0. | 26. |