| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.8 | 45.7 | 50.5 | 59.5 | 68.6 | 78.7 | 85.5 | 82.7 | 74.9 | 65.5 | 52.3 | 44.4 | 62.7 |
| Highest Mean Max. Temperature (F) | 55.6 | 53.2 | 61.4 | 67.9 | 74.7 | 85.3 | 89.6 | 86.3 | 81.8 | 72.2 | 59.0 | 54.3 | 65.3 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1981 | 1974 | 1980 | 1964 | 1962 | 1977 | 1963 | 1990 | 1980 | 1977 |
| Lowest Mean Max. Temperature (F) | 34.1 | 36.2 | 40.6 | 50.1 | 63.5 | 71.4 | 80.3 | 78.6 | 67.3 | 51.5 | 45.1 | 31.0 | 60.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1983 | 1969 | 1990 | 1965 | 1965 | 1969 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 27.2 | 29.9 | 35.6 | 44.5 | 53.5 | 63.0 | 69.2 | 66.7 | 58.3 | 48.2 | 36.0 | 28.5 | 46.7 |
| Highest Mean Temperature (F) | 40.1 | 36.6 | 44.0 | 51.2 | 57.9 | 68.6 | 72.1 | 70.4 | 63.9 | 54.4 | 42.0 | 37.7 | 49.8 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1977 | 1990 | 1966 | 1969 | 1977 | 1963 | 1990 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 17.5 | 20.9 | 25.0 | 37.1 | 49.2 | 58.2 | 66.8 | 63.9 | 52.8 | 38.2 | 28.1 | 16.5 | 44.8 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1983 | 1983 | 1969 | 1971 | 1965 | 1965 | 1969 | 1972 | 1983 | 1984 |
| Mean Min. Temperature (F) | 10.6 | 14.1 | 20.5 | 29.5 | 38.3 | 47.2 | 52.9 | 50.6 | 41.7 | 30.9 | 19.5 | 12.5 | 30.7 |
| Highest Mean Min. Temperature (F) | 24.6 | 21.6 | 28.2 | 34.5 | 42.0 | 53.5 | 56.1 | 54.9 | 47.6 | 36.5 | 25.3 | 21.1 | 34.6 |
| Year Highest Occurred | 1986 | 1986 | 1986 | 1981 | 1977 | 1990 | 1969 | 1969 | 1990 | 1963 | 1989 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -1.0 | 4.1 | 9.3 | 23.2 | 34.9 | 43.8 | 49.1 | 47.5 | 36.1 | 24.8 | 10.5 | 1.9 | 28.2 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1968 | 1983 | 1982 | 1962 | 1974 | 1974 | 1969 | 1972 | 1983 | 1964 |
| Mean Precipitation (in.) | 0.55 | 0.61 | 1.29 | 1.49 | 2.49 | 2.10 | 2.56 | 1.85 | 1.42 | 1.15 | 0.87 | 0.63 | 17.01 |
| Highest Precipitation (in.) | 1.34 | 1.95 | 4.42 | 3.28 | 7.48 | 10.07 | 5.08 | 4.70 | 4.10 | 4.37 | 2.38 | 2.34 | 30.39 |
| Year Highest Occurred | 1987 | 1984 | 1990 | 1971 | 1969 | 1965 | 1965 | 1963 | 1961 | 1969 | 1985 | 1979 | 1965 |
| Lowest Precipitation (in.) | 0.05 | 0.00 | 0.00 | 0.02 | 0.08 | 0.00 | 0.44 | 0.27 | 0.18 | 0.03 | 0.00 | 0.00 | 10.63 |
| Year Lowest Occurred | 1983 | 1983 | 1987 | 1963 | 1974 | 1980 | 1979 | 1978 | 1986 | 1964 | 1989 | 1990 | 1962 |
| Heating Degree Days (F) | 1172. | 983. | 911. | 615. | 357. | 116. | 8. | 27. | 220. | 521. | 870. | 1132. | 6932. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 56. | 139. | 79. | 19. | 0. | 0. | 0. | 293. |