| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.9 | 39.2 | 44.6 | 54.0 | 64.3 | 74.7 | 82.4 | 80.9 | 70.8 | 59.4 | 45.2 | 37.2 | 57.4 |
| Highest Mean Max. Temperature (F) | 47.0 | 46.1 | 52.8 | 63.3 | 72.7 | 84.2 | 89.4 | 87.9 | 79.1 | 68.6 | 52.7 | 46.9 | 59.7 |
| Year Highest Occurred | 1986 | 1983 | 1986 | 1987 | 1985 | 1988 | 1974 | 1983 | 1979 | 1963 | 1981 | 1979 | 1974 |
| Lowest Mean Max. Temperature (F) | 24.3 | 23.4 | 31.5 | 46.4 | 57.6 | 67.0 | 75.7 | 75.3 | 55.8 | 49.4 | 30.0 | 22.4 | 55.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1967 | 1982 | 1962 | 1977 | 1965 | 1969 | 1985 | 1983 | 1982 |
| Mean Temperature (F) | 25.9 | 29.1 | 34.1 | 43.2 | 53.1 | 63.3 | 70.8 | 69.3 | 59.4 | 48.7 | 35.8 | 27.7 | 46.7 |
| Highest Mean Temperature (F) | 37.5 | 36.4 | 42.4 | 51.1 | 61.0 | 72.9 | 75.3 | 76.1 | 67.1 | 58.7 | 43.4 | 36.4 | 48.9 |
| Year Highest Occurred | 1986 | 1983 | 1986 | 1987 | 1985 | 1988 | 1974 | 1983 | 1979 | 1963 | 1981 | 1979 | 1981 |
| Lowest Mean Temperature (F) | 13.9 | 14.2 | 20.6 | 37.0 | 47.7 | 57.1 | 65.7 | 64.1 | 46.4 | 40.1 | 20.7 | 13.8 | 44.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1967 | 1982 | 1972 | 1977 | 1965 | 1969 | 1985 | 1983 | 1982 |
| Mean Min. Temperature (F) | 15.8 | 18.8 | 23.6 | 32.3 | 41.9 | 51.7 | 59.2 | 57.7 | 47.9 | 38.0 | 26.3 | 18.1 | 35.9 |
| Highest Mean Min. Temperature (F) | 28.0 | 26.7 | 32.0 | 38.9 | 49.2 | 61.5 | 63.1 | 64.2 | 55.2 | 48.8 | 34.0 | 26.9 | 39.0 |
| Year Highest Occurred | 1986 | 1983 | 1986 | 1987 | 1985 | 1988 | 1964 | 1983 | 1990 | 1963 | 1981 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | 3.5 | 4.9 | 9.7 | 27.5 | 37.7 | 47.0 | 54.9 | 52.8 | 36.9 | 30.8 | 11.4 | 5.2 | 33.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1967 | 1969 | 1972 | 1977 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.33 | 0.52 | 1.03 | 2.09 | 3.68 | 4.08 | 3.36 | 1.88 | 1.61 | 0.98 | 0.55 | 0.50 | 20.61 |
| Highest Precipitation (in.) | 1.16 | 1.43 | 3.79 | 5.95 | 10.88 | 9.18 | 8.37 | 3.88 | 5.97 | 2.51 | 2.10 | 1.76 | 32.15 |
| Year Highest Occurred | 1971 | 1987 | 1973 | 1971 | 1962 | 1972 | 1979 | 1966 | 1986 | 1983 | 1973 | 1964 | 1965 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.16 | 0.00 | 0.09 | 0.74 | 0.64 | 0.50 | 0.14 | 0.08 | 0.00 | 0.00 | 11.19 |
| Year Lowest Occurred | 1990 | 1985 | 1981 | 1987 | 1966 | 1966 | 1983 | 1962 | 1975 | 1968 | 1987 | 1986 | 1985 |
| Heating Degree Days (F) | 1212. | 1005. | 958. | 654. | 376. | 131. | 20. | 42. | 232. | 505. | 876. | 1156. | 7167. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 80. | 200. | 175. | 64. | 0. | 0. | 0. | 526. |