| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.1 | 40.3 | 46.2 | 56.7 | 68.3 | 80.0 | 85.8 | 82.5 | 74.2 | 62.1 | 47.1 | 37.1 | 59.6 |
| Highest Mean Max. Temperature (F) | 45.4 | 47.8 | 56.3 | 66.2 | 76.1 | 86.1 | 91.2 | 87.3 | 80.0 | 69.5 | 52.3 | 46.5 | 63.1 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1989 | 1963 | 1961 | 1963 | 1962 | 1963 | 1988 | 1989 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 26.1 | 34.1 | 40.2 | 49.5 | 62.0 | 73.6 | 82.1 | 78.0 | 66.8 | 53.3 | 39.0 | 28.3 | 56.8 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1983 | 1980 | 1965 | 1986 | 1968 | 1986 | 1984 | 1972 | 1978 | 1975 |
| Mean Temperature (F) | 23.9 | 28.7 | 34.8 | 43.4 | 53.4 | 63.6 | 69.9 | 67.2 | 59.2 | 48.5 | 35.6 | 26.2 | 46.2 |
| Highest Mean Temperature (F) | 33.7 | 35.1 | 41.9 | 49.5 | 58.8 | 68.8 | 72.2 | 71.2 | 63.3 | 54.6 | 39.8 | 36.4 | 48.5 |
| Year Highest Occurred | 1986 | 1970 | 1986 | 1989 | 1969 | 1961 | 1964 | 1970 | 1979 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 16.9 | 21.5 | 28.2 | 37.9 | 49.3 | 58.3 | 67.5 | 63.4 | 54.0 | 42.3 | 29.0 | 17.9 | 44.0 |
| Year Lowest Occurred | 1963 | 1966 | 1964 | 1973 | 1975 | 1965 | 1987 | 1968 | 1961 | 1984 | 1979 | 1978 | 1975 |
| Mean Min. Temperature (F) | 12.7 | 17.1 | 23.4 | 30.1 | 38.5 | 47.1 | 53.9 | 51.8 | 44.2 | 34.9 | 24.1 | 15.3 | 32.8 |
| Highest Mean Min. Temperature (F) | 23.9 | 23.9 | 29.5 | 34.6 | 42.5 | 52.5 | 57.0 | 55.5 | 48.6 | 40.2 | 28.7 | 26.3 | 35.4 |
| Year Highest Occurred | 1986 | 1986 | 1986 | 1981 | 1969 | 1977 | 1977 | 1970 | 1977 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 5.1 | 8.9 | 16.0 | 25.6 | 35.6 | 41.8 | 50.7 | 48.4 | 37.5 | 31.3 | 18.1 | 5.8 | 31.1 |
| Year Lowest Occurred | 1963 | 1966 | 1964 | 1970 | 1962 | 1963 | 1962 | 1975 | 1965 | 1984 | 1979 | 1990 | 1975 |
| Mean Precipitation (in.) | 1.12 | 1.03 | 1.21 | 0.92 | 0.84 | 0.44 | 1.43 | 1.48 | 1.56 | 1.78 | 1.46 | 1.28 | 14.55 |
| Highest Precipitation (in.) | 3.39 | 3.86 | 3.27 | 2.44 | 2.41 | 2.31 | 3.21 | 3.70 | 5.72 | 8.28 | 4.06 | 3.57 | 22.14 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1986 | 1980 | 1984 | 1986 | 1963 | 1970 | 1972 | 1978 | 1966 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 6.29 |
| Year Lowest Occurred | 1972 | 1974 | 1971 | 1989 | 1972 | 1980 | 1963 | 1985 | 1979 | 1967 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1274. | 1016. | 936. | 648. | 360. | 102. | 0. | 27. | 192. | 512. | 882. | 1203. | 7152. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 60. | 155. | 95. | 18. | 0. | 0. | 0. | 328. |