| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.4 | 42.3 | 48.2 | 58.3 | 67.9 | 78.6 | 85.9 | 84.4 | 75.3 | 63.7 | 48.5 | 39.6 | 60.9 |
| Highest Mean Max. Temperature (F) | 46.8 | 50.3 | 57.5 | 66.8 | 74.8 | 84.3 | 92.5 | 89.8 | 81.0 | 71.5 | 56.0 | 50.3 | 63.8 |
| Year Highest Occurred | 1986 | 1970 | 1986 | 1987 | 1966 | 1988 | 1964 | 1970 | 1979 | 1963 | 1963 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 25.2 | 31.1 | 35.8 | 49.1 | 62.1 | 71.7 | 80.9 | 81.1 | 64.6 | 44.3 | 36.8 | 25.6 | 59.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1984 | 1967 | 1967 | 1990 | 1977 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 26.3 | 30.1 | 35.3 | 44.2 | 53.7 | 63.7 | 70.5 | 68.9 | 59.8 | 48.9 | 35.9 | 27.8 | 47.1 |
| Highest Mean Temperature (F) | 35.6 | 36.7 | 44.0 | 50.7 | 58.1 | 69.6 | 75.5 | 73.3 | 65.8 | 56.1 | 42.1 | 37.2 | 49.8 |
| Year Highest Occurred | 1986 | 1970 | 1986 | 1981 | 1987 | 1988 | 1964 | 1970 | 1963 | 1963 | 1962 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 13.5 | 19.7 | 23.3 | 37.8 | 48.8 | 57.8 | 67.1 | 65.2 | 51.2 | 35.5 | 26.0 | 15.1 | 45.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1967 | 1969 | 1972 | 1974 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 14.1 | 17.8 | 22.3 | 30.1 | 39.5 | 48.7 | 55.1 | 53.4 | 44.2 | 34.0 | 23.2 | 15.9 | 33.2 |
| Highest Mean Min. Temperature (F) | 24.4 | 25.6 | 30.4 | 35.1 | 44.4 | 54.8 | 58.4 | 59.1 | 50.8 | 40.6 | 29.3 | 24.0 | 36.0 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1977 | 1987 | 1988 | 1964 | 1983 | 1963 | 1963 | 1962 | 1980 | 1987 |
| Lowest Mean Min. Temperature (F) | 1.7 | 8.3 | 10.7 | 25.2 | 35.4 | 43.4 | 52.1 | 49.3 | 37.7 | 26.6 | 15.2 | 4.6 | 31.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1966 | 1967 | 1969 | 1972 | 1974 | 1965 | 1969 | 1985 | 1983 | 1966 |
| Mean Precipitation (in.) | 0.68 | 0.53 | 1.63 | 1.97 | 3.06 | 2.68 | 2.14 | 1.48 | 1.33 | 0.95 | 0.81 | 0.74 | 18.00 |
| Highest Precipitation (in.) | 1.60 | 1.71 | 6.26 | 4.31 | 6.09 | 6.06 | 5.40 | 4.32 | 3.61 | 4.72 | 2.62 | 2.67 | 28.39 |
| Year Highest Occurred | 1980 | 1984 | 1983 | 1984 | 1967 | 1983 | 1990 | 1983 | 1973 | 1969 | 1979 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.10 | 0.00 | 0.23 | 0.63 | 0.41 | 0.32 | 0.61 | 0.08 | 0.22 | 0.08 | 0.03 | 0.10 | 10.78 |
| Year Lowest Occurred | 1961 | 1977 | 1986 | 1982 | 1984 | 1980 | 1964 | 1973 | 1968 | 1977 | 1965 | 1990 | 1964 |
| Heating Degree Days (F) | 1200. | 977. | 921. | 624. | 354. | 107. | 10. | 23. | 196. | 499. | 873. | 1153. | 6937. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 68. | 180. | 144. | 40. | 0. | 0. | 0. | 432. |