| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 22.4 | 28.9 | 41.1 | 58.5 | 72.7 | 81.7 | 85.7 | 82.3 | 73.6 | 61.8 | 42.6 | 27.1 | 56.5 |
| Highest Mean Max. Temperature (F) | 38.8 | 43.4 | 55.0 | 70.7 | 81.3 | 91.2 | 90.8 | 88.3 | 80.1 | 73.3 | 50.4 | 35.8 | 61.9 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1977 | 1988 | 1988 | 1983 | 1978 | 1963 | 1981 | 1965 | 1987 |
| Lowest Mean Max. Temperature (F) | 9.3 | 18.3 | 28.3 | 45.4 | 66.4 | 73.5 | 80.3 | 77.0 | 62.9 | 55.4 | 32.3 | 10.0 | 53.2 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1974 | 1969 | 1962 | 1985 | 1965 | 1988 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 12.6 | 18.9 | 31.5 | 47.1 | 60.2 | 69.5 | 73.9 | 70.5 | 61.5 | 50.2 | 33.9 | 18.3 | 45.7 |
| Highest Mean Temperature (F) | 29.5 | 33.1 | 41.3 | 55.5 | 67.4 | 76.3 | 78.6 | 77.2 | 66.4 | 60.1 | 40.2 | 28.4 | 50.8 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1977 | 1988 | 1983 | 1983 | 1978 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Temperature (F) | -0.6 | 7.4 | 18.7 | 38.3 | 54.3 | 62.4 | 69.1 | 66.6 | 54.0 | 44.0 | 24.9 | 1.9 | 42.1 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1967 | 1969 | 1971 | 1977 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 2.6 | 8.8 | 21.8 | 35.7 | 47.6 | 57.3 | 61.9 | 58.7 | 49.5 | 38.5 | 25.1 | 9.5 | 34.8 |
| Highest Mean Min. Temperature (F) | 20.1 | 22.7 | 33.5 | 42.2 | 54.2 | 61.4 | 68.0 | 66.1 | 53.8 | 46.9 | 31.3 | 21.0 | 39.6 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1985 | 1985 | 1988 | 1983 | 1983 | 1990 | 1963 | 1962 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | -10.5 | -3.5 | 9.0 | 30.6 | 41.9 | 51.3 | 57.1 | 54.0 | 45.0 | 31.6 | 15.6 | -6.3 | 31.0 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1961 | 1979 | 1969 | 1971 | 1977 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.76 | 0.75 | 1.89 | 2.89 | 3.37 | 4.22 | 3.91 | 4.04 | 3.02 | 2.22 | 1.50 | 0.95 | 29.52 |
| Highest Precipitation (in.) | 2.78 | 2.42 | 4.89 | 7.20 | 6.83 | 8.10 | 7.94 | 13.60 | 6.95 | 7.29 | 4.56 | 3.30 | 41.41 |
| Year Highest Occurred | 1969 | 1962 | 1985 | 1975 | 1965 | 1986 | 1963 | 1981 | 1965 | 1971 | 1975 | 1982 | 1965 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.62 | 0.25 | 0.83 | 0.96 | 0.49 | 0.52 | 0.62 | 0.25 | 0.00 | 0.00 | 17.05 |
| Year Lowest Occurred | 1974 | 1987 | 1978 | 1987 | 1976 | 1982 | 1975 | 1969 | 1974 | 1988 | 1984 | 1990 | 1976 |
| Heating Degree Days (F) | 1624. | 1291. | 1039. | 537. | 199. | 28. | 8. | 19. | 135. | 465. | 933. | 1448. | 7726. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 51. | 163. | 284. | 190. | 30. | 6. | 0. | 0. | 724. |