| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.7 | 40.7 | 46.9 | 57.1 | 66.1 | 76.3 | 80.5 | 77.0 | 71.3 | 61.7 | 48.3 | 38.6 | 58.4 |
| Highest Mean Max. Temperature (F) | 48.5 | 50.4 | 55.6 | 64.6 | 72.7 | 82.8 | 87.0 | 81.9 | 77.6 | 67.7 | 55.0 | 50.6 | 62.3 |
| Year Highest Occurred | 1981 | 1981 | 1972 | 1981 | 1963 | 1990 | 1980 | 1969 | 1979 | 1979 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 30.2 | 33.6 | 40.3 | 50.1 | 62.2 | 71.9 | 75.7 | 72.3 | 66.2 | 49.9 | 37.3 | 31.5 | 56.7 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1973 | 1965 | 1966 | 1986 | 1968 | 1965 | 1984 | 1972 | 1990 | 1984 |
| Mean Temperature (F) | 20.6 | 24.8 | 31.9 | 40.6 | 48.9 | 58.2 | 63.7 | 61.1 | 54.4 | 44.6 | 33.5 | 23.1 | 42.1 |
| Highest Mean Temperature (F) | 30.6 | 31.8 | 42.0 | 46.2 | 54.8 | 63.6 | 68.1 | 65.4 | 57.6 | 49.6 | 46.0 | 34.0 | 45.8 |
| Year Highest Occurred | 1981 | 1962 | 1972 | 1962 | 1963 | 1990 | 1980 | 1969 | 1963 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 14.0 | 16.4 | 25.1 | 34.7 | 44.9 | 54.3 | 60.6 | 57.8 | 51.6 | 37.2 | 24.7 | 16.7 | 40.2 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1980 | 1975 | 1965 | 1986 | 1974 | 1965 | 1984 | 1972 | 1990 | 1975 |
| Mean Min. Temperature (F) | 4.5 | 8.9 | 16.9 | 24.0 | 31.6 | 40.1 | 46.8 | 45.3 | 37.4 | 27.4 | 18.7 | 7.6 | 25.8 |
| Highest Mean Min. Temperature (F) | 12.7 | 18.3 | 28.4 | 33.0 | 36.9 | 44.5 | 49.9 | 48.9 | 41.1 | 32.4 | 39.5 | 17.3 | 29.4 |
| Year Highest Occurred | 1981 | 1962 | 1972 | 1982 | 1963 | 1981 | 1966 | 1969 | 1962 | 1982 | 1982 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -2.3 | -2.8 | 9.8 | 16.8 | 26.7 | 34.5 | 44.2 | 41.5 | 34.0 | 23.7 | 11.1 | 0.9 | 23.2 |
| Year Lowest Occurred | 1979 | 1982 | 1965 | 1980 | 1975 | 1975 | 1976 | 1974 | 1970 | 1976 | 1979 | 1976 | 1976 |
| Mean Precipitation (in.) | 0.59 | 0.60 | 0.89 | 0.65 | 0.82 | 1.13 | 2.09 | 2.39 | 1.45 | 1.09 | 0.82 | 0.68 | 13.20 |
| Highest Precipitation (in.) | 2.90 | 2.33 | 2.37 | 2.21 | 2.36 | 3.26 | 4.00 | 6.99 | 2.78 | 3.23 | 4.14 | 2.30 | 20.36 |
| Year Highest Occurred | 1979 | 1975 | 1985 | 1982 | 1979 | 1986 | 1990 | 1971 | 1962 | 1972 | 1978 | 1990 | 1990 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.12 | 0.23 | 0.12 | 0.00 | 0.00 | 0.00 | 8.13 |
| Year Lowest Occurred | 1986 | 1981 | 1986 | 1986 | 1975 | 1980 | 1980 | 1985 | 1966 | 1964 | 1989 | 1981 | 1985 |
| Heating Degree Days (F) | 1376. | 1126. | 1026. | 732. | 499. | 215. | 72. | 134. | 318. | 632. | 945. | 1299. | 8374. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 11. | 31. | 13. | 0. | 0. | 0. | 0. | 55. |