| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 32.1 | 36.8 | 43.7 | 54.4 | 64.8 | 76.1 | 85.0 | 83.5 | 72.6 | 60.5 | 44.7 | 34.9 | 57.4 |
| Highest Mean Max. Temperature (F) | 42.5 | 44.0 | 53.7 | 61.4 | 71.7 | 84.0 | 90.4 | 89.5 | 79.8 | 70.6 | 53.2 | 41.7 | 60.4 |
| Year Highest Occurred | 1981 | 1983 | 1972 | 1981 | 1985 | 1988 | 1964 | 1983 | 1969 | 1963 | 1981 | 1965 | 1981 |
| Lowest Mean Max. Temperature (F) | 18.5 | 25.0 | 31.3 | 47.2 | 56.0 | 67.9 | 79.3 | 79.0 | 60.3 | 48.1 | 29.5 | 18.2 | 55.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1967 | 1967 | 1972 | 1979 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Temperature (F) | 20.6 | 25.3 | 32.2 | 42.2 | 52.2 | 62.5 | 70.4 | 68.5 | 57.8 | 46.3 | 32.5 | 23.2 | 44.5 |
| Highest Mean Temperature (F) | 29.9 | 33.0 | 40.8 | 48.2 | 57.3 | 69.7 | 74.4 | 74.7 | 63.6 | 55.7 | 38.8 | 30.3 | 47.0 |
| Year Highest Occurred | 1981 | 1983 | 1986 | 1981 | 1985 | 1988 | 1964 | 1983 | 1969 | 1963 | 1965 | 1980 | 1963 |
| Lowest Mean Temperature (F) | 7.2 | 14.5 | 20.2 | 36.7 | 46.6 | 56.9 | 65.3 | 64.4 | 48.3 | 38.2 | 18.8 | 7.9 | 42.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1967 | 1969 | 1972 | 1977 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 9.0 | 13.9 | 20.8 | 30.0 | 39.6 | 48.9 | 55.6 | 53.4 | 42.9 | 32.1 | 20.2 | 11.4 | 31.5 |
| Highest Mean Min. Temperature (F) | 17.4 | 22.0 | 28.0 | 34.9 | 44.7 | 55.3 | 59.4 | 59.8 | 50.6 | 40.7 | 27.2 | 19.1 | 34.0 |
| Year Highest Occurred | 1965 | 1983 | 1986 | 1981 | 1987 | 1988 | 1966 | 1983 | 1963 | 1963 | 1962 | 1980 | 1963 |
| Lowest Mean Min. Temperature (F) | -4.1 | 3.9 | 9.0 | 25.4 | 34.4 | 44.3 | 51.3 | 49.7 | 36.3 | 28.2 | 8.1 | -2.5 | 28.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1983 | 1969 | 1972 | 1977 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.41 | 0.48 | 1.15 | 2.08 | 3.05 | 2.75 | 2.16 | 1.22 | 1.46 | 1.05 | 0.57 | 0.46 | 16.84 |
| Highest Precipitation (in.) | 0.86 | 1.19 | 3.28 | 5.14 | 7.46 | 6.76 | 5.54 | 2.98 | 4.62 | 4.76 | 1.65 | 1.94 | 26.76 |
| Year Highest Occurred | 1976 | 1964 | 1973 | 1984 | 1971 | 1962 | 1965 | 1979 | 1973 | 1986 | 1983 | 1987 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.05 | 0.07 | 0.32 | 0.35 | 0.47 | 0.32 | 0.00 | 0.06 | 0.00 | 0.08 | 0.09 | 11.71 |
| Year Lowest Occurred | 1989 | 1983 | 1978 | 1962 | 1974 | 1961 | 1987 | 1990 | 1979 | 1988 | 1963 | 1971 | 1974 |
| Heating Degree Days (F) | 1376. | 1112. | 1017. | 684. | 401. | 132. | 17. | 42. | 245. | 580. | 975. | 1296. | 7877. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 57. | 185. | 150. | 29. | 0. | 0. | 0. | 421. |