| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.7 | 42.1 | 50.7 | 61.2 | 71.9 | 81.1 | 91.0 | 89.7 | 78.9 | 65.1 | 45.2 | 34.4 | 62.2 |
| Highest Mean Max. Temperature (F) | 41.9 | 51.8 | 59.1 | 73.2 | 80.3 | 92.8 | 96.2 | 97.0 | 88.3 | 77.0 | 53.2 | 40.5 | 65.4 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1966 | 1961 | 1961 | 1961 | 1990 | 1988 | 1976 | 1981 | 1987 |
| Lowest Mean Max. Temperature (F) | 28.0 | 35.8 | 43.5 | 48.9 | 66.9 | 74.4 | 84.1 | 80.9 | 69.1 | 58.3 | 39.0 | 27.0 | 59.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1964 | 1983 | 1976 | 1986 | 1970 | 1985 | 1990 | 1984 |
| Mean Temperature (F) | 25.8 | 31.0 | 38.1 | 45.8 | 54.4 | 62.6 | 69.2 | 67.9 | 58.8 | 48.2 | 35.6 | 26.3 | 47.0 |
| Highest Mean Temperature (F) | 33.7 | 38.6 | 43.6 | 52.4 | 58.4 | 68.4 | 73.5 | 74.5 | 66.4 | 53.9 | 41.8 | 33.3 | 48.7 |
| Year Highest Occurred | 1967 | 1963 | 1978 | 1987 | 1987 | 1961 | 1967 | 1971 | 1967 | 1988 | 1966 | 1966 | 1973 |
| Lowest Mean Temperature (F) | 16.3 | 20.2 | 32.5 | 38.3 | 51.1 | 59.0 | 63.9 | 63.1 | 52.4 | 43.4 | 28.5 | 16.1 | 43.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1967 | 1982 | 1984 | 1986 | 1985 | 1985 | 1985 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 16.9 | 19.8 | 25.4 | 30.3 | 37.0 | 44.1 | 47.3 | 46.1 | 38.7 | 31.1 | 26.0 | 18.2 | 31.7 |
| Highest Mean Min. Temperature (F) | 28.2 | 28.3 | 31.9 | 34.3 | 41.1 | 50.4 | 52.8 | 52.9 | 46.0 | 39.4 | 34.7 | 27.6 | 35.2 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1990 | 1971 | 1988 | 1967 | 1971 | 1967 | 1963 | 1966 | 1966 | 1973 |
| Lowest Mean Min. Temperature (F) | 4.6 | 4.5 | 18.7 | 24.0 | 31.4 | 38.8 | 39.2 | 39.6 | 33.4 | 26.5 | 18.0 | 5.2 | 26.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1982 | 1966 | 1966 | 1985 | 1988 | 1976 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 3.67 | 2.30 | 2.15 | 1.65 | 1.43 | 1.47 | 0.54 | 0.67 | 1.18 | 1.40 | 3.17 | 3.41 | 23.04 |
| Highest Precipitation (in.) | 10.82 | 6.54 | 5.24 | 5.62 | 3.54 | 3.58 | 2.30 | 3.71 | 4.53 | 4.18 | 7.64 | 11.52 | 36.34 |
| Year Highest Occurred | 1970 | 1986 | 1974 | 1990 | 1980 | 1964 | 1982 | 1968 | 1986 | 1962 | 1988 | 1964 | 1982 |
| Lowest Precipitation (in.) | 0.29 | 0.15 | 0.56 | 0.31 | 0.13 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.39 | 15.15 |
| Year Lowest Occurred | 1985 | 1967 | 1969 | 1977 | 1974 | 1961 | 1979 | 1969 | 1987 | 1988 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1215. | 952. | 834. | 576. | 329. | 121. | 29. | 63. | 229. | 521. | 882. | 1200. | 6951. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 49. | 160. | 153. | 43. | 0. | 0. | 0. | 405. |