| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 22.3 | 27.7 | 39.7 | 56.8 | 70.6 | 80.0 | 84.6 | 81.9 | 72.2 | 60.2 | 41.6 | 26.3 | 55.3 |
| Highest Mean Max. Temperature (F) | 38.2 | 43.1 | 51.8 | 69.0 | 79.9 | 87.8 | 90.0 | 88.9 | 78.9 | 71.3 | 48.6 | 36.5 | 60.7 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1977 | 1988 | 1966 | 1983 | 1990 | 1963 | 1980 | 1986 | 1987 |
| Lowest Mean Max. Temperature (F) | 9.7 | 16.4 | 26.5 | 44.7 | 65.4 | 72.2 | 78.1 | 76.5 | 61.2 | 53.4 | 28.5 | 9.4 | 52.1 |
| Year Lowest Occurred | 1979 | 1979 | 1965 | 1975 | 1968 | 1969 | 1962 | 1977 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 12.9 | 17.9 | 30.6 | 45.9 | 58.5 | 68.4 | 73.1 | 70.1 | 60.4 | 48.8 | 32.3 | 17.6 | 44.7 |
| Highest Mean Temperature (F) | 28.1 | 31.7 | 39.3 | 53.2 | 65.9 | 75.0 | 77.6 | 76.2 | 67.7 | 60.3 | 38.7 | 27.8 | 49.1 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1988 | 1988 | 1966 | 1983 | 1978 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Temperature (F) | 1.4 | 5.5 | 18.4 | 38.0 | 52.9 | 61.5 | 68.9 | 64.2 | 51.5 | 42.5 | 20.7 | 1.4 | 42.1 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1967 | 1969 | 1971 | 1977 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 3.6 | 8.0 | 21.4 | 34.9 | 46.3 | 56.7 | 61.5 | 58.3 | 48.6 | 37.4 | 23.0 | 8.8 | 34.0 |
| Highest Mean Min. Temperature (F) | 18.0 | 22.3 | 32.1 | 39.6 | 52.9 | 62.1 | 66.0 | 63.4 | 56.9 | 49.2 | 29.2 | 21.0 | 37.4 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1963 | 1988 | 1988 | 1983 | 1983 | 1978 | 1963 | 1983 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -9.2 | -5.5 | 10.3 | 27.7 | 39.9 | 50.7 | 57.4 | 51.8 | 41.8 | 29.1 | 12.8 | -6.7 | 31.3 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1982 | 1967 | 1969 | 1978 | 1977 | 1965 | 1976 | 1985 | 1983 | 1976 |
| Mean Precipitation (in.) | 0.64 | 0.69 | 1.73 | 2.42 | 3.00 | 3.62 | 3.90 | 2.55 | 2.61 | 1.89 | 1.27 | 0.85 | 25.17 |
| Highest Precipitation (in.) | 2.31 | 1.75 | 5.36 | 6.10 | 6.09 | 8.98 | 12.48 | 6.44 | 6.12 | 6.18 | 4.10 | 2.65 | 40.36 |
| Year Highest Occurred | 1982 | 1962 | 1977 | 1986 | 1990 | 1984 | 1963 | 1980 | 1986 | 1968 | 1983 | 1968 | 1979 |
| Lowest Precipitation (in.) | 0.02 | 0.04 | 0.17 | 0.04 | 0.54 | 0.91 | 0.13 | 0.77 | 0.18 | 0.01 | 0.00 | 0.00 | 12.61 |
| Year Lowest Occurred | 1990 | 1964 | 1967 | 1980 | 1981 | 1973 | 1975 | 1967 | 1974 | 1989 | 1980 | 1986 | 1976 |
| Heating Degree Days (F) | 1615. | 1319. | 1066. | 573. | 240. | 38. | 8. | 27. | 176. | 508. | 981. | 1469. | 8020. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 38. | 140. | 259. | 185. | 38. | 5. | 0. | 0. | 665. |