| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 21.5 | 24.6 | 29.3 | 36.9 | 45.6 | 54.9 | 61.9 | 60.1 | 52.7 | 42.6 | 30.5 | 23.0 | 40.3 |
| Highest Mean Max. Temperature (F) | 30.6 | 29.3 | 36.1 | 42.8 | 50.5 | 60.5 | 66.6 | 64.8 | 58.2 | 51.8 | 36.2 | 33.0 | 42.4 |
| Year Highest Occurred | 1981 | 1976 | 1986 | 1981 | 1969 | 1977 | 1964 | 1969 | 1979 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 14.9 | 16.6 | 21.8 | 30.7 | 40.5 | 49.5 | 52.2 | 54.2 | 45.4 | 34.1 | 23.4 | 18.3 | 38.9 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1983 | 1983 | 1975 | 1965 | 1968 | 1961 | 1984 | 1979 | 1961 | 1975 |
| Mean Temperature (F) | 11.2 | 13.4 | 17.7 | 25.3 | 34.5 | 43.6 | 50.5 | 49.0 | 41.7 | 31.8 | 20.2 | 12.9 | 29.3 |
| Highest Mean Temperature (F) | 19.1 | 18.0 | 24.2 | 31.2 | 39.3 | 48.4 | 53.8 | 52.6 | 46.2 | 39.7 | 25.5 | 23.0 | 31.7 |
| Year Highest Occurred | 1981 | 1976 | 1986 | 1981 | 1969 | 1977 | 1966 | 1969 | 1963 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 4.7 | 5.4 | 10.2 | 19.2 | 30.1 | 39.2 | 44.0 | 44.6 | 36.3 | 24.4 | 13.2 | 7.9 | 27.7 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1973 | 1983 | 1975 | 1965 | 1968 | 1961 | 1969 | 1979 | 1978 | 1964 |
| Mean Min. Temperature (F) | 0.9 | 2.2 | 6.1 | 13.8 | 23.3 | 32.3 | 39.1 | 37.8 | 30.7 | 20.9 | 9.8 | 2.8 | 18.3 |
| Highest Mean Min. Temperature (F) | 7.9 | 7.1 | 12.2 | 19.5 | 28.1 | 36.3 | 42.0 | 42.0 | 34.8 | 27.6 | 14.9 | 12.9 | 21.0 |
| Year Highest Occurred | 1986 | 1986 | 1986 | 1981 | 1969 | 1977 | 1966 | 1983 | 1963 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -5.6 | -5.8 | -1.4 | 7.4 | 19.6 | 28.9 | 35.8 | 34.0 | 26.4 | 14.0 | 3.0 | -2.8 | 15.8 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1973 | 1983 | 1975 | 1965 | 1965 | 1971 | 1969 | 1979 | 1978 | 1964 |
| Mean Precipitation (in.) | 2.88 | 2.53 | 3.40 | 3.81 | 3.14 | 1.98 | 2.37 | 2.42 | 2.03 | 2.01 | 2.83 | 3.04 | 32.44 |
| Highest Precipitation (in.) | 7.37 | 5.12 | 6.72 | 7.42 | 6.88 | 5.16 | 5.98 | 6.68 | 5.56 | 6.84 | 7.67 | 8.45 | 58.47 |
| Year Highest Occurred | 1980 | 1968 | 1983 | 1983 | 1983 | 1969 | 1965 | 1983 | 1961 | 1969 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.39 | 0.43 | 0.50 | 0.91 | 0.59 | 0.00 | 0.98 | 0.36 | 0.40 | 0.39 | 0.59 | 0.53 | 15.31 |
| Year Lowest Occurred | 1990 | 1990 | 1986 | 1963 | 1974 | 1980 | 1978 | 1978 | 1979 | 1988 | 1962 | 1986 | 1990 |
| Heating Degree Days (F) | 1668. | 1445. | 1466. | 1191. | 946. | 642. | 450. | 496. | 699. | 1029. | 1344. | 1615. | 12991. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |