| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 13.2 | 19.5 | 32.7 | 51.0 | 67.1 | 75.8 | 81.3 | 80.0 | 68.5 | 55.6 | 35.2 | 19.0 | 49.9 |
| Highest Mean Max. Temperature (F) | 28.0 | 30.3 | 43.5 | 63.0 | 79.2 | 84.8 | 85.6 | 87.8 | 78.0 | 70.3 | 46.0 | 28.3 | 54.0 |
| Year Highest Occurred | 1990 | 1984 | 1963 | 1980 | 1977 | 1988 | 1963 | 1961 | 1963 | 1963 | 1981 | 1979 | 1963 |
| Lowest Mean Max. Temperature (F) | -0.2 | 4.4 | 24.2 | 39.7 | 58.6 | 67.1 | 76.9 | 74.0 | 55.5 | 45.8 | 23.5 | 7.1 | 46.6 |
| Year Lowest Occurred | 1966 | 1979 | 1989 | 1979 | 1979 | 1969 | 1971 | 1985 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 4.1 | 9.7 | 23.4 | 40.4 | 54.6 | 64.1 | 69.0 | 66.9 | 56.2 | 44.6 | 26.4 | 9.6 | 39.1 |
| Highest Mean Temperature (F) | 18.7 | 23.2 | 33.6 | 49.6 | 65.4 | 71.6 | 72.7 | 72.8 | 62.9 | 55.9 | 38.6 | 19.2 | 43.7 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1987 | 1977 | 1988 | 1983 | 1983 | 1978 | 1963 | 1981 | 1979 | 1981 |
| Lowest Mean Temperature (F) | -10.2 | -4.4 | 14.0 | 31.5 | 47.7 | 56.6 | 63.8 | 60.1 | 46.6 | 38.5 | 14.0 | -1.7 | 35.5 |
| Year Lowest Occurred | 1966 | 1979 | 1970 | 1979 | 1979 | 1969 | 1971 | 1977 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | -5.1 | -0.2 | 14.1 | 29.6 | 42.1 | 52.3 | 56.8 | 53.7 | 43.8 | 33.5 | 17.6 | 0.3 | 28.2 |
| Highest Mean Min. Temperature (F) | 11.2 | 16.1 | 26.7 | 36.3 | 51.5 | 58.3 | 60.7 | 60.8 | 50.8 | 41.5 | 31.1 | 11.7 | 33.4 |
| Year Highest Occurred | 1972 | 1984 | 1973 | 1987 | 1977 | 1988 | 1975 | 1973 | 1978 | 1963 | 1981 | 1987 | 1981 |
| Lowest Mean Min. Temperature (F) | -20.2 | -14.7 | 1.8 | 23.2 | 35.8 | 46.1 | 50.6 | 46.2 | 37.6 | 27.6 | 4.5 | -10.4 | 24.5 |
| Year Lowest Occurred | 1966 | 1967 | 1964 | 1979 | 1967 | 1969 | 1971 | 1977 | 1965 | 1988 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.63 | 0.50 | 1.11 | 1.50 | 2.16 | 3.12 | 3.05 | 2.63 | 2.22 | 1.43 | 0.65 | 0.59 | 19.59 |
| Highest Precipitation (in.) | 2.16 | 1.38 | 4.55 | 4.14 | 5.36 | 6.57 | 7.06 | 6.73 | 5.67 | 5.15 | 2.60 | 1.69 | 27.68 |
| Year Highest Occurred | 1969 | 1974 | 1966 | 1986 | 1962 | 1964 | 1986 | 1974 | 1965 | 1982 | 1977 | 1967 | 1977 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.03 | 0.00 | 0.19 | 0.34 | 0.65 | 0.39 | 0.06 | 0.00 | 0.00 | 0.00 | 11.01 |
| Year Lowest Occurred | 1981 | 1973 | 1969 | 1980 | 1980 | 1980 | 1973 | 1967 | 1979 | 1976 | 1976 | 1981 | 1963 |
| Heating Degree Days (F) | 1888. | 1548. | 1290. | 738. | 351. | 109. | 26. | 85. | 281. | 632. | 1158. | 1717. | 9823. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 28. | 82. | 150. | 143. | 17. | 0. | 0. | 0. | 420. |