| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 20.9 | 26.9 | 39.8 | 57.3 | 69.7 | 78.8 | 85.9 | 84.4 | 72.9 | 60.4 | 40.5 | 25.4 | 55.2 |
| Highest Mean Max. Temperature (F) | 35.1 | 40.7 | 51.0 | 67.1 | 78.0 | 89.4 | 92.6 | 90.9 | 79.0 | 71.6 | 48.9 | 37.6 | 60.3 |
| Year Highest Occurred | 1990 | 1987 | 1963 | 1987 | 1977 | 1988 | 1975 | 1961 | 1978 | 1963 | 1981 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 7.3 | 12.0 | 26.9 | 46.7 | 62.9 | 72.1 | 78.6 | 78.9 | 60.3 | 53.4 | 25.5 | 8.4 | 51.3 |
| Year Lowest Occurred | 1978 | 1979 | 1969 | 1975 | 1968 | 1985 | 1962 | 1966 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 10.1 | 16.7 | 29.8 | 45.2 | 57.1 | 66.6 | 72.8 | 70.6 | 59.6 | 47.3 | 30.3 | 15.3 | 43.5 |
| Highest Mean Temperature (F) | 25.3 | 30.5 | 39.5 | 52.5 | 65.6 | 75.0 | 78.3 | 76.5 | 65.1 | 55.9 | 37.6 | 25.6 | 48.1 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1977 | 1977 | 1988 | 1975 | 1983 | 1978 | 1963 | 1981 | 1979 | 1987 |
| Lowest Mean Temperature (F) | -2.9 | 2.5 | 16.2 | 38.7 | 51.3 | 59.9 | 67.2 | 66.1 | 49.7 | 42.6 | 16.4 | -0.6 | 40.4 |
| Year Lowest Occurred | 1982 | 1979 | 1969 | 1961 | 1968 | 1969 | 1962 | 1977 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | -0.6 | 6.5 | 19.8 | 33.0 | 44.5 | 54.3 | 59.6 | 56.8 | 46.1 | 34.2 | 19.9 | 5.3 | 31.6 |
| Highest Mean Min. Temperature (F) | 15.5 | 23.8 | 30.7 | 39.0 | 53.1 | 60.5 | 64.6 | 64.0 | 51.2 | 40.2 | 26.4 | 16.5 | 35.8 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1977 | 1977 | 1988 | 1983 | 1983 | 1978 | 1963 | 1983 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -14.4 | -7.0 | 5.5 | 26.1 | 38.0 | 47.5 | 54.0 | 51.7 | 39.0 | 29.3 | 7.3 | -9.5 | 28.7 |
| Year Lowest Occurred | 1982 | 1979 | 1969 | 1961 | 1966 | 1969 | 1967 | 1967 | 1965 | 1964 | 1985 | 1983 | 1965 |
| Mean Precipitation (in.) | 0.37 | 0.47 | 1.34 | 1.95 | 2.41 | 3.15 | 2.75 | 2.13 | 1.86 | 1.12 | 0.59 | 0.41 | 18.55 |
| Highest Precipitation (in.) | 1.11 | 1.54 | 3.97 | 7.88 | 4.86 | 7.72 | 7.71 | 5.93 | 5.31 | 5.14 | 2.49 | 1.37 | 27.41 |
| Year Highest Occurred | 1969 | 1969 | 1977 | 1986 | 1972 | 1990 | 1972 | 1980 | 1988 | 1982 | 1977 | 1988 | 1977 |
| Lowest Precipitation (in.) | 0.01 | 0.08 | 0.04 | 0.12 | 0.52 | 0.37 | 0.30 | 0.33 | 0.05 | 0.00 | 0.00 | 0.00 | 7.88 |
| Year Lowest Occurred | 1961 | 1985 | 1971 | 1981 | 1976 | 1974 | 1975 | 1970 | 1979 | 1964 | 1980 | 1986 | 1976 |
| Heating Degree Days (F) | 1702. | 1352. | 1091. | 594. | 269. | 68. | 15. | 29. | 195. | 549. | 1041. | 1541. | 8446. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 24. | 116. | 257. | 203. | 33. | 0. | 0. | 0. | 633. |