| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.2 | 38.9 | 45.5 | 55.3 | 64.4 | 75.5 | 83.8 | 82.3 | 70.9 | 60.0 | 45.3 | 36.2 | 57.7 |
| Highest Mean Max. Temperature (F) | 43.9 | 46.2 | 54.6 | 64.0 | 71.9 | 88.1 | 90.0 | 89.2 | 78.5 | 68.8 | 51.7 | 47.0 | 61.4 |
| Year Highest Occurred | 1981 | 1983 | 1986 | 1987 | 1966 | 1988 | 1966 | 1969 | 1990 | 1963 | 1981 | 1979 | 1988 |
| Lowest Mean Max. Temperature (F) | 18.2 | 25.3 | 33.2 | 46.8 | 58.2 | 67.8 | 77.6 | 76.0 | 58.3 | 47.0 | 26.8 | 18.0 | 54.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1983 | 1967 | 1962 | 1977 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 20.3 | 25.7 | 32.7 | 42.2 | 51.2 | 61.2 | 68.5 | 66.8 | 56.0 | 45.7 | 32.0 | 22.7 | 43.8 |
| Highest Mean Temperature (F) | 30.5 | 32.5 | 41.4 | 48.2 | 56.9 | 71.6 | 73.2 | 72.9 | 62.5 | 53.3 | 39.0 | 31.0 | 46.4 |
| Year Highest Occurred | 1990 | 1983 | 1986 | 1987 | 1987 | 1988 | 1966 | 1983 | 1963 | 1963 | 1981 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 4.2 | 12.5 | 19.5 | 35.3 | 46.4 | 56.7 | 64.1 | 61.9 | 45.5 | 36.2 | 14.8 | 5.5 | 40.8 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1983 | 1969 | 1972 | 1974 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 6.4 | 12.4 | 19.9 | 28.9 | 38.0 | 46.9 | 53.1 | 51.2 | 41.0 | 31.4 | 18.7 | 9.1 | 29.8 |
| Highest Mean Min. Temperature (F) | 17.8 | 20.2 | 28.2 | 33.4 | 43.9 | 55.1 | 56.5 | 57.7 | 48.1 | 37.7 | 26.3 | 17.4 | 33.0 |
| Year Highest Occurred | 1983 | 1987 | 1986 | 1977 | 1987 | 1988 | 1985 | 1983 | 1963 | 1963 | 1987 | 1980 | 1987 |
| Lowest Mean Min. Temperature (F) | -9.9 | -0.4 | 5.7 | 23.8 | 34.1 | 43.5 | 48.5 | 46.7 | 32.6 | 25.3 | 2.7 | -7.0 | 27.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1974 | 1969 | 1972 | 1974 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 0.29 | 0.32 | 0.60 | 1.39 | 2.26 | 2.30 | 1.27 | 1.12 | 1.18 | 0.93 | 0.40 | 0.36 | 12.42 |
| Highest Precipitation (in.) | 1.00 | 1.26 | 1.85 | 5.74 | 6.04 | 5.90 | 3.30 | 3.82 | 3.22 | 3.30 | 0.97 | 1.07 | 19.52 |
| Year Highest Occurred | 1972 | 1971 | 1977 | 1984 | 1978 | 1963 | 1973 | 1968 | 1982 | 1971 | 1983 | 1977 | 1968 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.09 | 0.23 | 0.43 | 0.35 | 0.26 | 0.00 | 0.10 | 0.03 | 0.03 | 0.00 | 6.36 |
| Year Lowest Occurred | 1983 | 1977 | 1969 | 1987 | 1966 | 1978 | 1963 | 1970 | 1964 | 1965 | 1965 | 1969 | 1988 |
| Heating Degree Days (F) | 1386. | 1100. | 1001. | 684. | 428. | 168. | 30. | 76. | 295. | 598. | 990. | 1311. | 8067. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 54. | 138. | 132. | 25. | 0. | 0. | 0. | 349. |