| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.0 | 44.8 | 49.8 | 59.8 | 68.5 | 78.8 | 85.0 | 82.0 | 73.8 | 64.5 | 50.8 | 42.2 | 61.8 |
| Highest Mean Max. Temperature (F) | 52.7 | 53.1 | 59.4 | 65.6 | 76.9 | 87.1 | 92.6 | 90.0 | 78.5 | 75.6 | 58.4 | 54.5 | 65.9 |
| Year Highest Occurred | 1986 | 1970 | 1967 | 1981 | 1963 | 1971 | 1964 | 1962 | 1977 | 1963 | 1965 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 28.1 | 33.5 | 38.0 | 49.7 | 61.7 | 71.2 | 77.8 | 77.1 | 65.6 | 51.1 | 40.4 | 27.4 | 57.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1983 | 1982 | 1990 | 1990 | 1965 | 1969 | 1979 | 1983 | 1990 |
| Mean Temperature (F) | 25.3 | 28.8 | 34.3 | 44.0 | 53.2 | 63.3 | 69.1 | 66.6 | 57.8 | 47.9 | 34.9 | 26.7 | 46.0 |
| Highest Mean Temperature (F) | 37.3 | 34.9 | 43.0 | 49.8 | 58.7 | 70.6 | 74.0 | 70.4 | 61.1 | 57.1 | 40.5 | 37.8 | 48.9 |
| Year Highest Occurred | 1986 | 1986 | 1986 | 1981 | 1963 | 1972 | 1966 | 1962 | 1963 | 1963 | 1965 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 15.7 | 19.8 | 23.5 | 37.6 | 47.5 | 58.0 | 64.1 | 62.7 | 51.3 | 38.2 | 25.6 | 16.2 | 43.4 |
| Year Lowest Occurred | 1979 | 1978 | 1965 | 1983 | 1978 | 1982 | 1990 | 1990 | 1965 | 1969 | 1979 | 1983 | 1978 |
| Mean Min. Temperature (F) | 9.5 | 12.8 | 18.6 | 28.2 | 37.9 | 47.8 | 53.2 | 51.1 | 41.7 | 31.3 | 19.0 | 11.2 | 30.2 |
| Highest Mean Min. Temperature (F) | 21.8 | 21.9 | 28.3 | 37.4 | 42.4 | 60.7 | 57.6 | 54.2 | 44.9 | 38.5 | 25.3 | 21.0 | 34.2 |
| Year Highest Occurred | 1986 | 1986 | 1986 | 1986 | 1985 | 1972 | 1966 | 1982 | 1963 | 1963 | 1981 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -0.5 | 4.3 | 9.0 | 22.0 | 31.1 | 42.6 | 49.7 | 48.3 | 37.0 | 25.3 | 10.8 | 4.7 | 26.9 |
| Year Lowest Occurred | 1963 | 1978 | 1965 | 1978 | 1978 | 1970 | 1987 | 1990 | 1965 | 1969 | 1979 | 1961 | 1978 |
| Mean Precipitation (in.) | 0.26 | 0.20 | 0.69 | 0.99 | 2.12 | 1.95 | 2.66 | 2.34 | 1.14 | 0.50 | 0.39 | 0.30 | 13.54 |
| Highest Precipitation (in.) | 0.67 | 1.29 | 1.96 | 2.25 | 6.63 | 4.11 | 6.49 | 6.31 | 4.00 | 1.91 | 1.96 | 1.43 | 23.58 |
| Year Highest Occurred | 1987 | 1987 | 1979 | 1980 | 1987 | 1982 | 1977 | 1963 | 1976 | 1969 | 1972 | 1979 | 1987 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.05 | 0.07 | 0.31 | 0.00 | 0.00 | 0.00 | 0.00 | 5.81 |
| Year Lowest Occurred | 1986 | 1981 | 1986 | 1964 | 1974 | 1964 | 1964 | 1962 | 1983 | 1980 | 1989 | 1980 | 1964 |
| Heating Degree Days (F) | 1231. | 1014. | 952. | 630. | 371. | 113. | 21. | 44. | 226. | 530. | 903. | 1187. | 7222. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 62. | 148. | 93. | 10. | 0. | 0. | 0. | 318. |