| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.1 | 31.6 | 35.4 | 42.7 | 53.1 | 64.6 | 70.5 | 68.3 | 61.3 | 51.0 | 38.0 | 30.4 | 48.0 |
| Highest Mean Max. Temperature (F) | 38.0 | 37.0 | 42.4 | 49.9 | 59.5 | 70.3 | 74.1 | 71.5 | 66.3 | 57.9 | 43.5 | 40.8 | 50.4 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1974 | 1977 | 1980 | 1983 | 1979 | 1963 | 1962 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 20.6 | 23.2 | 26.5 | 35.8 | 47.4 | 55.4 | 65.5 | 62.7 | 53.0 | 40.4 | 30.7 | 22.5 | 44.2 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1970 | 1967 | 1967 | 1967 | 1967 | 1961 | 1969 | 1979 | 1967 | 1964 |
| Mean Temperature (F) | 14.3 | 15.5 | 20.5 | 29.2 | 39.4 | 49.0 | 54.6 | 52.9 | 46.1 | 37.1 | 25.2 | 16.9 | 33.4 |
| Highest Mean Temperature (F) | 22.5 | 21.1 | 27.7 | 36.3 | 42.7 | 54.0 | 57.6 | 56.5 | 50.6 | 42.0 | 30.0 | 29.0 | 37.0 |
| Year Highest Occurred | 1981 | 1976 | 1989 | 1981 | 1969 | 1981 | 1966 | 1983 | 1990 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 5.8 | 5.4 | 10.8 | 22.6 | 35.4 | 44.7 | 49.8 | 49.0 | 40.4 | 30.3 | 18.2 | 9.6 | 29.1 |
| Year Lowest Occurred | 1966 | 1964 | 1962 | 1970 | 1964 | 1967 | 1962 | 1962 | 1961 | 1969 | 1972 | 1961 | 1964 |
| Mean Min. Temperature (F) | -0.5 | -0.6 | 5.4 | 15.6 | 25.7 | 33.3 | 38.7 | 37.5 | 30.9 | 23.1 | 12.3 | 3.4 | 18.7 |
| Highest Mean Min. Temperature (F) | 7.4 | 10.1 | 13.7 | 22.7 | 29.8 | 38.8 | 43.4 | 41.5 | 35.4 | 26.8 | 17.4 | 17.1 | 23.6 |
| Year Highest Occurred | 1971 | 1986 | 1989 | 1981 | 1981 | 1981 | 1966 | 1983 | 1966 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -14.7 | -12.5 | -7.9 | 7.6 | 21.4 | 28.2 | 34.1 | 31.6 | 23.6 | 16.2 | 2.6 | -5.5 | 13.9 |
| Year Lowest Occurred | 1966 | 1964 | 1962 | 1973 | 1964 | 1976 | 1962 | 1975 | 1971 | 1976 | 1972 | 1964 | 1964 |
| Mean Precipitation (in.) | 1.50 | 1.17 | 1.43 | 1.37 | 1.26 | 1.14 | 1.98 | 2.08 | 1.43 | 1.11 | 1.30 | 1.46 | 17.23 |
| Highest Precipitation (in.) | 3.93 | 2.67 | 3.48 | 3.01 | 2.87 | 3.91 | 3.61 | 4.56 | 4.58 | 3.86 | 2.37 | 4.00 | 24.05 |
| Year Highest Occurred | 1962 | 1986 | 1965 | 1964 | 1979 | 1969 | 1989 | 1963 | 1961 | 1969 | 1983 | 1964 | 1969 |
| Lowest Precipitation (in.) | 0.22 | 0.29 | 0.53 | 0.44 | 0.24 | 0.00 | 0.40 | 0.54 | 0.41 | 0.32 | 0.24 | 0.18 | 12.60 |
| Year Lowest Occurred | 1981 | 1985 | 1969 | 1987 | 1977 | 1980 | 1979 | 1985 | 1978 | 1976 | 1963 | 1976 | 1987 |
| Heating Degree Days (F) | 1572. | 1386. | 1380. | 1074. | 794. | 480. | 322. | 375. | 567. | 865. | 1194. | 1491. | 11500. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |