| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.3 | 39.0 | 49.9 | 60.7 | 69.7 | 78.7 | 88.4 | 86.1 | 74.7 | 61.1 | 43.5 | 31.1 | 59.4 |
| Highest Mean Max. Temperature (F) | 38.8 | 46.9 | 57.6 | 72.8 | 75.8 | 87.4 | 92.9 | 92.7 | 84.6 | 70.4 | 48.2 | 39.8 | 62.9 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1969 | 1974 | 1988 | 1981 | 1979 | 1988 | 1965 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 13.9 | 28.0 | 41.6 | 52.8 | 64.8 | 70.8 | 83.3 | 80.1 | 63.8 | 53.8 | 34.7 | 21.1 | 56.4 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1978 | 1964 | 1987 | 1968 | 1965 | 1969 | 1985 | 1983 | 1984 |
| Mean Temperature (F) | 20.7 | 28.3 | 37.4 | 46.1 | 54.2 | 62.4 | 69.5 | 67.4 | 57.4 | 45.9 | 33.3 | 22.1 | 45.4 |
| Highest Mean Temperature (F) | 30.2 | 35.7 | 43.8 | 53.5 | 58.3 | 68.5 | 73.4 | 71.9 | 63.2 | 52.5 | 37.0 | 31.0 | 47.8 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1987 | 1988 | 1985 | 1981 | 1979 | 1988 | 1965 | 1979 | 1981 |
| Lowest Mean Temperature (F) | 2.8 | 17.3 | 29.3 | 40.3 | 50.2 | 58.2 | 66.0 | 63.5 | 50.0 | 40.3 | 25.6 | 12.7 | 42.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1970 | 1965 | 1964 | 1962 | 1964 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 11.1 | 17.6 | 24.9 | 31.4 | 38.7 | 46.1 | 50.5 | 48.5 | 40.0 | 30.7 | 23.1 | 13.1 | 31.3 |
| Highest Mean Min. Temperature (F) | 22.4 | 24.5 | 29.9 | 36.0 | 42.6 | 50.7 | 54.8 | 53.8 | 44.5 | 36.0 | 27.7 | 22.5 | 34.0 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1990 | 1987 | 1988 | 1975 | 1983 | 1963 | 1963 | 1983 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -8.3 | 5.9 | 16.9 | 27.3 | 35.5 | 43.0 | 47.7 | 45.0 | 36.1 | 26.7 | 16.5 | 2.9 | 28.4 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1970 | 1965 | 1978 | 1961 | 1987 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.70 | 0.50 | 0.51 | 0.79 | 1.40 | 1.48 | 0.89 | 0.92 | 0.82 | 0.56 | 0.75 | 0.77 | 10.09 |
| Highest Precipitation (in.) | 1.52 | 1.85 | 1.41 | 2.57 | 3.65 | 4.32 | 2.50 | 2.15 | 2.48 | 2.40 | 2.48 | 2.74 | 14.75 |
| Year Highest Occurred | 1971 | 1986 | 1974 | 1967 | 1980 | 1964 | 1977 | 1983 | 1986 | 1967 | 1970 | 1977 | 1977 |
| Lowest Precipitation (in.) | 0.09 | 0.00 | 0.00 | 0.09 | 0.45 | 0.18 | 0.01 | 0.12 | 0.00 | 0.00 | 0.04 | 0.06 | 6.45 |
| Year Lowest Occurred | 1981 | 1970 | 1968 | 1987 | 1983 | 1985 | 1988 | 1969 | 1979 | 1987 | 1982 | 1976 | 1961 |
| Heating Degree Days (F) | 1373. | 1028. | 856. | 567. | 335. | 127. | 14. | 46. | 248. | 592. | 951. | 1330. | 7467. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 49. | 154. | 121. | 20. | 0. | 0. | 0. | 344. |