| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.8 | 36.7 | 45.1 | 56.0 | 66.1 | 73.9 | 81.8 | 81.5 | 70.8 | 55.6 | 37.9 | 30.3 | 55.5 |
| Highest Mean Max. Temperature (F) | 34.6 | 41.6 | 51.1 | 63.4 | 70.7 | 81.6 | 91.1 | 90.7 | 81.8 | 61.9 | 42.1 | 36.6 | 58.1 |
| Year Highest Occurred | 1983 | 1968 | 1981 | 1987 | 1966 | 1961 | 1985 | 1967 | 1967 | 1987 | 1962 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 18.4 | 27.7 | 40.1 | 48.3 | 58.9 | 65.9 | 75.4 | 74.7 | 62.2 | 49.4 | 27.2 | 21.5 | 52.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1970 | 1984 | 1981 | 1983 | 1980 | 1986 | 1984 | 1985 | 1983 | 1984 |
| Mean Temperature (F) | 24.6 | 29.6 | 35.5 | 43.5 | 52.2 | 59.4 | 64.5 | 64.1 | 55.2 | 44.2 | 32.9 | 26.0 | 44.3 |
| Highest Mean Temperature (F) | 31.1 | 34.5 | 39.7 | 49.2 | 55.2 | 63.8 | 70.4 | 68.8 | 60.8 | 47.6 | 36.9 | 32.9 | 46.2 |
| Year Highest Occurred | 1983 | 1961 | 1983 | 1987 | 1972 | 1986 | 1975 | 1961 | 1967 | 1963 | 1962 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 11.0 | 19.3 | 30.2 | 38.5 | 47.6 | 54.5 | 61.3 | 58.8 | 49.2 | 38.8 | 21.6 | 16.5 | 41.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1984 | 1981 | 1986 | 1964 | 1965 | 1984 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 19.4 | 22.4 | 25.8 | 30.9 | 38.3 | 44.8 | 47.2 | 46.5 | 39.5 | 32.7 | 27.8 | 21.6 | 33.1 |
| Highest Mean Min. Temperature (F) | 27.5 | 28.7 | 32.1 | 35.0 | 43.3 | 48.4 | 54.1 | 51.1 | 44.4 | 38.0 | 32.8 | 29.2 | 35.1 |
| Year Highest Occurred | 1983 | 1961 | 1983 | 1987 | 1980 | 1982 | 1975 | 1983 | 1978 | 1975 | 1983 | 1979 | 1983 |
| Lowest Mean Min. Temperature (F) | 3.6 | 10.8 | 15.3 | 28.0 | 34.4 | 41.1 | 43.0 | 41.3 | 35.2 | 27.6 | 15.9 | 11.4 | 30.8 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1965 | 1962 | 1962 | 1969 | 1965 | 1987 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 3.96 | 3.12 | 2.77 | 2.08 | 2.44 | 2.06 | 1.21 | 1.45 | 1.53 | 2.02 | 4.33 | 4.46 | 31.43 |
| Highest Precipitation (in.) | 8.26 | 6.45 | 4.94 | 4.15 | 4.73 | 4.32 | 4.03 | 3.66 | 3.09 | 5.09 | 10.46 | 7.77 | 39.45 |
| Year Highest Occurred | 1974 | 1979 | 1987 | 1982 | 1978 | 1981 | 1983 | 1976 | 1986 | 1968 | 1973 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.27 | 0.78 | 0.36 | 0.32 | 1.37 | 0.60 | 0.00 | 0.00 | 0.01 | 0.13 | 1.36 | 0.93 | 21.55 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1964 | 1962 | 1973 | 1969 | 1990 | 1987 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 1252. | 991. | 915. | 645. | 397. | 187. | 82. | 100. | 308. | 645. | 963. | 1209. | 7694. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 19. | 67. | 72. | 14. | 0. | 0. | 0. | 172. |