| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.7 | 40.5 | 45.2 | 54.0 | 63.0 | 73.5 | 82.0 | 80.2 | 69.2 | 59.6 | 44.9 | 37.6 | 57.2 |
| Highest Mean Max. Temperature (F) | 48.2 | 48.6 | 55.5 | 65.7 | 69.5 | 85.6 | 86.7 | 87.4 | 78.8 | 66.8 | 51.0 | 46.8 | 60.8 |
| Year Highest Occurred | 1981 | 1977 | 1986 | 1987 | 1966 | 1988 | 1988 | 1971 | 1979 | 1988 | 1965 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 20.3 | 24.4 | 32.2 | 44.1 | 57.5 | 66.2 | 77.4 | 73.8 | 56.2 | 49.3 | 30.7 | 24.5 | 54.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1975 | 1982 | 1987 | 1968 | 1965 | 1969 | 1985 | 1978 | 1975 |
| Mean Temperature (F) | 25.1 | 28.7 | 33.0 | 40.9 | 49.3 | 58.3 | 65.2 | 63.5 | 53.9 | 45.5 | 33.4 | 26.5 | 43.6 |
| Highest Mean Temperature (F) | 36.7 | 35.5 | 42.1 | 49.1 | 54.5 | 67.1 | 68.9 | 69.5 | 61.6 | 51.8 | 39.1 | 35.5 | 46.2 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1987 | 1988 | 1989 | 1971 | 1990 | 1963 | 1963 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 9.2 | 11.7 | 20.0 | 33.4 | 45.5 | 53.4 | 61.5 | 58.9 | 43.7 | 37.6 | 18.6 | 13.2 | 41.3 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1975 | 1982 | 1986 | 1968 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 13.5 | 16.8 | 20.7 | 27.8 | 35.6 | 43.1 | 48.3 | 46.7 | 38.5 | 31.3 | 21.8 | 15.4 | 30.0 |
| Highest Mean Min. Temperature (F) | 25.8 | 24.3 | 28.7 | 32.5 | 39.9 | 48.5 | 52.5 | 51.6 | 48.6 | 38.4 | 27.9 | 24.2 | 32.0 |
| Year Highest Occurred | 1986 | 1961 | 1986 | 1987 | 1987 | 1988 | 1964 | 1971 | 1963 | 1963 | 1963 | 1980 | 1963 |
| Lowest Mean Min. Temperature (F) | -1.9 | -1.0 | 7.7 | 22.7 | 32.4 | 38.9 | 43.6 | 42.0 | 31.2 | 25.5 | 6.5 | 1.3 | 26.3 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1986 | 1983 | 1986 | 1985 | 1965 | 1984 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 0.36 | 0.38 | 0.74 | 1.45 | 1.90 | 1.63 | 1.28 | 0.95 | 1.38 | 0.97 | 0.63 | 0.48 | 12.15 |
| Highest Precipitation (in.) | 1.53 | 1.83 | 2.37 | 3.85 | 7.63 | 4.73 | 3.97 | 4.11 | 4.66 | 3.61 | 1.77 | 1.64 | 18.71 |
| Year Highest Occurred | 1972 | 1986 | 1980 | 1971 | 1978 | 1967 | 1975 | 1972 | 1961 | 1975 | 1985 | 1978 | 1975 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.15 | 0.29 | 0.03 | 0.00 | 0.00 | 0.01 | 0.00 | 7.87 |
| Year Lowest Occurred | 1964 | 1970 | 1963 | 1961 | 1963 | 1978 | 1976 | 1964 | 1962 | 1962 | 1963 | 1986 | 1962 |
| Heating Degree Days (F) | 1237. | 1016. | 992. | 723. | 487. | 226. | 65. | 113. | 356. | 605. | 948. | 1194. | 7962. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 25. | 71. | 66. | 23. | 0. | 0. | 0. | 185. |