| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.8 | 40.6 | 48.3 | 58.6 | 69.0 | 80.0 | 86.0 | 83.3 | 75.0 | 63.4 | 47.1 | 34.9 | 60.0 |
| Highest Mean Max. Temperature (F) | 45.3 | 46.7 | 56.9 | 66.1 | 75.4 | 86.6 | 89.6 | 87.6 | 80.7 | 70.9 | 53.4 | 47.2 | 62.7 |
| Year Highest Occurred | 1981 | 1981 | 1986 | 1981 | 1969 | 1990 | 1963 | 1969 | 1979 | 1963 | 1962 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 24.0 | 34.4 | 40.8 | 51.0 | 63.1 | 74.1 | 82.4 | 77.9 | 66.1 | 51.1 | 40.0 | 25.7 | 57.4 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1983 | 1983 | 1969 | 1986 | 1968 | 1961 | 1969 | 1979 | 1978 | 1984 |
| Mean Temperature (F) | 18.7 | 25.5 | 34.1 | 42.5 | 51.4 | 60.2 | 66.6 | 64.3 | 56.0 | 45.1 | 32.3 | 20.6 | 43.1 |
| Highest Mean Temperature (F) | 27.5 | 33.2 | 41.3 | 48.0 | 56.0 | 65.0 | 69.1 | 68.5 | 61.2 | 50.6 | 36.5 | 32.4 | 46.0 |
| Year Highest Occurred | 1981 | 1986 | 1986 | 1989 | 1969 | 1988 | 1966 | 1983 | 1990 | 1963 | 1966 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 10.9 | 15.6 | 23.8 | 36.9 | 48.1 | 57.2 | 63.6 | 61.2 | 50.4 | 38.8 | 24.8 | 13.0 | 40.5 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1983 | 1975 | 1975 | 1962 | 1968 | 1961 | 1969 | 1979 | 1972 | 1964 |
| Mean Min. Temperature (F) | 3.7 | 10.4 | 19.8 | 26.4 | 33.8 | 40.4 | 47.2 | 45.4 | 37.0 | 26.7 | 17.5 | 6.1 | 26.2 |
| Highest Mean Min. Temperature (F) | 14.0 | 21.7 | 25.7 | 31.5 | 37.4 | 45.8 | 50.0 | 50.7 | 42.3 | 33.7 | 22.0 | 17.5 | 29.3 |
| Year Highest Occurred | 1980 | 1986 | 1986 | 1989 | 1981 | 1988 | 1981 | 1983 | 1990 | 1972 | 1985 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -4.0 | -4.3 | 6.7 | 22.3 | 30.9 | 37.7 | 42.0 | 39.9 | 32.3 | 21.7 | 9.6 | -3.5 | 22.4 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1982 | 1970 | 1962 | 1962 | 1962 | 1968 | 1976 | 1979 | 1972 | 1964 |
| Mean Precipitation (in.) | 0.74 | 0.58 | 0.80 | 0.73 | 0.79 | 0.85 | 1.31 | 0.96 | 1.21 | 1.05 | 0.72 | 0.91 | 10.65 |
| Highest Precipitation (in.) | 2.88 | 1.56 | 2.06 | 1.86 | 2.72 | 2.38 | 3.26 | 3.04 | 4.68 | 2.92 | 2.39 | 2.42 | 16.12 |
| Year Highest Occurred | 1979 | 1989 | 1975 | 1961 | 1979 | 1984 | 1984 | 1984 | 1961 | 1985 | 1985 | 1978 | 1984 |
| Lowest Precipitation (in.) | 0.01 | 0.08 | 0.09 | 0.06 | 0.02 | 0.01 | 0.17 | 0.21 | 0.07 | 0.00 | 0.16 | 0.09 | 6.89 |
| Year Lowest Occurred | 1981 | 1970 | 1966 | 1982 | 1974 | 1968 | 1972 | 1978 | 1979 | 1965 | 1976 | 1976 | 1968 |
| Heating Degree Days (F) | 1435. | 1106. | 958. | 675. | 422. | 164. | 25. | 72. | 275. | 617. | 981. | 1376. | 8106. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 20. | 75. | 51. | 5. | 0. | 0. | 0. | 151. |