| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 25.5 | 31.3 | 42.9 | 58.7 | 72.0 | 80.2 | 84.8 | 82.0 | 73.0 | 61.2 | 44.3 | 29.4 | 57.1 |
| Highest Mean Max. Temperature (F) | 38.4 | 41.8 | 51.6 | 66.8 | 82.0 | 89.2 | 90.4 | 88.1 | 78.7 | 71.3 | 50.1 | 37.4 | 60.8 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1988 | 1988 | 1978 | 1963 | 1990 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 13.5 | 24.6 | 33.0 | 50.5 | 63.7 | 69.5 | 79.4 | 78.2 | 67.4 | 55.6 | 36.7 | 20.0 | 54.1 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1972 | 1967 | 1969 | 1962 | 1967 | 1965 | 1987 | 1976 | 1983 | 1972 |
| Mean Temperature (F) | 14.4 | 19.5 | 31.4 | 45.8 | 57.9 | 66.4 | 71.4 | 68.5 | 60.1 | 49.0 | 34.7 | 19.8 | 44.9 |
| Highest Mean Temperature (F) | 28.3 | 31.4 | 40.4 | 52.3 | 65.1 | 71.5 | 75.7 | 74.1 | 65.0 | 57.0 | 39.8 | 28.5 | 48.9 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1985 | 1977 | 1988 | 1983 | 1988 | 1978 | 1963 | 1990 | 1982 | 1987 |
| Lowest Mean Temperature (F) | 1.4 | 10.7 | 23.3 | 38.0 | 51.4 | 58.1 | 65.9 | 65.1 | 55.1 | 43.1 | 25.0 | 9.9 | 42.6 |
| Year Lowest Occurred | 1977 | 1978 | 1965 | 1975 | 1967 | 1969 | 1962 | 1967 | 1975 | 1976 | 1976 | 1976 | 1972 |
| Mean Min. Temperature (F) | 3.3 | 7.6 | 19.9 | 32.9 | 43.8 | 52.6 | 57.9 | 55.0 | 47.1 | 36.8 | 25.0 | 10.1 | 32.7 |
| Highest Mean Min. Temperature (F) | 18.1 | 20.9 | 29.1 | 38.9 | 50.6 | 57.3 | 62.4 | 60.0 | 52.7 | 46.7 | 29.5 | 20.3 | 37.0 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1985 | 1982 | 1971 | 1987 | 1988 | 1990 | 1971 | 1987 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -10.8 | -4.0 | 10.6 | 24.6 | 37.5 | 46.5 | 52.4 | 50.8 | 41.0 | 29.5 | 13.3 | -3.1 | 29.1 |
| Year Lowest Occurred | 1977 | 1978 | 1975 | 1975 | 1966 | 1982 | 1962 | 1963 | 1976 | 1964 | 1976 | 1976 | 1976 |
| Mean Precipitation (in.) | 0.85 | 0.94 | 2.05 | 2.76 | 3.59 | 3.53 | 3.82 | 4.21 | 4.25 | 2.34 | 1.92 | 1.27 | 31.53 |
| Highest Precipitation (in.) | 2.35 | 2.49 | 4.03 | 5.77 | 7.32 | 9.13 | 8.02 | 13.10 | 10.58 | 5.68 | 5.08 | 2.57 | 42.27 |
| Year Highest Occurred | 1969 | 1971 | 1966 | 1973 | 1973 | 1967 | 1978 | 1980 | 1965 | 1984 | 1982 | 1965 | 1965 |
| Lowest Precipitation (in.) | 0.00 | 0.02 | 0.26 | 0.84 | 0.69 | 0.46 | 1.40 | 0.32 | 0.40 | 0.27 | 0.00 | 0.23 | 17.44 |
| Year Lowest Occurred | 1981 | 1964 | 1978 | 1989 | 1988 | 1983 | 1973 | 1969 | 1979 | 1964 | 1976 | 1980 | 1976 |
| Heating Degree Days (F) | 1569. | 1274. | 1042. | 576. | 260. | 63. | 13. | 33. | 167. | 496. | 909. | 1401. | 7803. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 39. | 105. | 211. | 141. | 20. | 0. | 0. | 0. | 516. |