| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.9 | 44.6 | 51.7 | 62.7 | 72.0 | 83.2 | 90.2 | 87.5 | 77.8 | 66.6 | 51.0 | 40.0 | 63.8 |
| Highest Mean Max. Temperature (F) | 49.8 | 53.9 | 61.5 | 69.9 | 78.3 | 91.0 | 94.2 | 92.4 | 85.2 | 74.0 | 57.6 | 51.0 | 66.9 |
| Year Highest Occurred | 1981 | 1983 | 1986 | 1987 | 1963 | 1988 | 1964 | 1988 | 1990 | 1963 | 1989 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 27.1 | 34.4 | 39.9 | 52.3 | 64.7 | 74.6 | 84.8 | 83.2 | 64.2 | 51.1 | 37.0 | 24.3 | 60.9 |
| Year Lowest Occurred | 1979 | 1966 | 1965 | 1984 | 1967 | 1967 | 1972 | 1966 | 1965 | 1969 | 1985 | 1983 | 1973 |
| Mean Temperature (F) | 24.2 | 30.6 | 37.8 | 48.2 | 58.0 | 68.4 | 74.8 | 72.2 | 62.0 | 50.1 | 36.6 | 26.3 | 49.1 |
| Highest Mean Temperature (F) | 31.7 | 38.5 | 46.3 | 53.1 | 62.8 | 75.0 | 77.8 | 77.6 | 68.0 | 56.2 | 42.0 | 35.1 | 51.5 |
| Year Highest Occurred | 1983 | 1983 | 1986 | 1981 | 1977 | 1988 | 1989 | 1983 | 1990 | 1963 | 1965 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 13.2 | 22.2 | 25.7 | 41.8 | 52.7 | 63.0 | 70.9 | 68.7 | 52.3 | 41.1 | 26.5 | 12.7 | 47.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1984 | 1967 | 1982 | 1972 | 1965 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 10.4 | 16.6 | 23.8 | 33.6 | 44.0 | 53.5 | 59.4 | 56.8 | 46.1 | 33.6 | 22.2 | 12.7 | 34.4 |
| Highest Mean Min. Temperature (F) | 19.2 | 25.0 | 31.0 | 37.7 | 49.3 | 59.0 | 62.3 | 63.8 | 50.8 | 38.4 | 26.8 | 19.7 | 36.8 |
| Year Highest Occurred | 1983 | 1987 | 1986 | 1977 | 1977 | 1988 | 1977 | 1983 | 1990 | 1963 | 1965 | 1975 | 1977 |
| Lowest Mean Min. Temperature (F) | -0.8 | 8.3 | 11.4 | 28.2 | 40.1 | 48.4 | 56.1 | 52.3 | 40.3 | 27.5 | 15.1 | 1.0 | 32.2 |
| Year Lowest Occurred | 1979 | 1982 | 1965 | 1982 | 1981 | 1982 | 1961 | 1962 | 1965 | 1980 | 1979 | 1983 | 1982 |
| Mean Precipitation (in.) | 0.33 | 0.22 | 1.04 | 1.37 | 3.16 | 2.91 | 2.62 | 1.87 | 1.03 | 0.79 | 0.49 | 0.33 | 16.16 |
| Highest Precipitation (in.) | 1.28 | 1.18 | 3.52 | 3.51 | 6.44 | 8.22 | 7.90 | 5.90 | 3.88 | 4.21 | 2.13 | 1.19 | 21.60 |
| Year Highest Occurred | 1978 | 1987 | 1984 | 1977 | 1987 | 1967 | 1962 | 1968 | 1973 | 1969 | 1972 | 1973 | 1979 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.27 | 0.29 | 0.41 | 0.38 | 0.02 | 0.03 | 0.00 | 0.00 | 0.00 | 7.59 |
| Year Lowest Occurred | 1983 | 1985 | 1966 | 1974 | 1974 | 1968 | 1964 | 1970 | 1962 | 1988 | 1989 | 1976 | 1964 |
| Heating Degree Days (F) | 1265. | 963. | 843. | 504. | 238. | 56. | 0. | 9. | 149. | 462. | 852. | 1200. | 6541. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 21. | 158. | 304. | 233. | 59. | 0. | 0. | 0. | 775. |