| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.8 | 45.3 | 50.9 | 57.2 | 65.3 | 74.5 | 83.2 | 82.7 | 74.2 | 63.6 | 47.2 | 40.2 | 60.3 |
| Highest Mean Max. Temperature (F) | 45.6 | 52.7 | 57.4 | 70.9 | 70.7 | 83.4 | 91.9 | 90.1 | 81.7 | 73.1 | 51.8 | 46.7 | 63.7 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1969 | 1986 | 1985 | 1986 | 1987 | 1988 | 1989 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 25.0 | 35.1 | 45.4 | 46.9 | 58.0 | 63.9 | 76.8 | 74.9 | 68.0 | 56.5 | 39.4 | 30.0 | 57.1 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1984 | 1962 | 1984 | 1963 | 1976 | 1985 | 1984 | 1978 | 1983 | 1984 |
| Mean Temperature (F) | 29.6 | 34.2 | 38.3 | 42.6 | 49.0 | 56.7 | 62.3 | 61.9 | 54.3 | 46.4 | 36.4 | 30.1 | 45.2 |
| Highest Mean Temperature (F) | 35.5 | 41.1 | 43.0 | 50.3 | 53.8 | 61.8 | 67.7 | 67.2 | 60.7 | 53.3 | 39.9 | 35.7 | 47.0 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1969 | 1986 | 1985 | 1967 | 1963 | 1988 | 1962 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 13.9 | 22.4 | 34.1 | 37.5 | 45.1 | 49.2 | 57.9 | 57.7 | 49.7 | 42.8 | 25.7 | 20.3 | 43.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1984 | 1977 | 1984 | 1963 | 1975 | 1985 | 1969 | 1978 | 1985 | 1984 |
| Mean Min. Temperature (F) | 19.3 | 23.1 | 25.6 | 27.9 | 32.7 | 38.9 | 41.3 | 41.1 | 34.4 | 29.1 | 25.5 | 19.8 | 29.9 |
| Highest Mean Min. Temperature (F) | 26.4 | 30.1 | 31.7 | 32.0 | 37.0 | 44.5 | 45.3 | 46.5 | 42.2 | 34.0 | 29.7 | 28.0 | 31.8 |
| Year Highest Occurred | 1990 | 1983 | 1983 | 1989 | 1971 | 1969 | 1975 | 1961 | 1963 | 1979 | 1965 | 1973 | 1967 |
| Lowest Mean Min. Temperature (F) | 2.8 | 9.7 | 19.9 | 22.7 | 27.6 | 34.0 | 36.9 | 35.8 | 29.7 | 24.9 | 12.0 | 6.8 | 26.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1965 | 1976 | 1981 | 1980 | 1964 | 1974 | 1978 | 1985 | 1985 |
| Mean Precipitation (in.) | 2.50 | 1.70 | 1.25 | 0.80 | 0.63 | 0.61 | 0.41 | 0.43 | 0.48 | 0.90 | 2.14 | 2.57 | 14.42 |
| Highest Precipitation (in.) | 5.22 | 5.26 | 3.09 | 2.53 | 2.44 | 2.60 | 2.45 | 2.27 | 2.06 | 4.75 | 6.20 | 12.24 | 24.38 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1980 | 1981 | 1980 | 1987 | 1976 | 1982 | 1984 | 1984 | 1964 | 1980 |
| Lowest Precipitation (in.) | 0.11 | 0.02 | 0.10 | 0.00 | 0.06 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.31 | 0.15 | 7.58 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1976 | 1983 | 1989 | 1988 | 1975 | 1988 | 1969 | 1976 | 1985 |
| Heating Degree Days (F) | 1097. | 862. | 828. | 672. | 496. | 265. | 121. | 144. | 329. | 577. | 858. | 1082. | 7331. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 16. | 37. | 48. | 8. | 0. | 0. | 0. | 109. |