| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.1 | 36.9 | 43.5 | 54.5 | 65.6 | 76.1 | 83.2 | 81.0 | 71.7 | 59.7 | 43.8 | 34.8 | 57.0 |
| Highest Mean Max. Temperature (F) | 43.6 | 42.9 | 54.0 | 61.4 | 71.6 | 84.1 | 86.5 | 85.9 | 77.6 | 66.3 | 50.8 | 44.7 | 59.8 |
| Year Highest Occurred | 1981 | 1977 | 1986 | 1981 | 1969 | 1977 | 1966 | 1971 | 1979 | 1963 | 1962 | 1980 | 1977 |
| Lowest Mean Max. Temperature (F) | 21.8 | 27.0 | 34.9 | 45.4 | 60.2 | 69.6 | 79.4 | 76.8 | 60.6 | 47.5 | 35.7 | 25.6 | 54.8 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1973 | 1983 | 1969 | 1986 | 1987 | 1965 | 1969 | 1979 | 1978 | 1964 |
| Mean Temperature (F) | 21.5 | 24.9 | 31.4 | 40.7 | 50.4 | 59.8 | 66.5 | 64.0 | 55.0 | 44.3 | 31.7 | 23.0 | 42.8 |
| Highest Mean Temperature (F) | 28.2 | 30.2 | 39.6 | 46.7 | 54.3 | 65.4 | 69.4 | 67.7 | 60.0 | 49.8 | 37.8 | 33.1 | 45.6 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1981 | 1969 | 1988 | 1966 | 1983 | 1981 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 9.4 | 15.4 | 22.0 | 34.5 | 46.0 | 54.6 | 64.3 | 61.2 | 47.7 | 36.0 | 23.9 | 15.5 | 40.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1973 | 1983 | 1969 | 1986 | 1974 | 1965 | 1969 | 1979 | 1978 | 1964 |
| Mean Min. Temperature (F) | 9.9 | 13.0 | 19.2 | 27.0 | 35.1 | 43.5 | 49.8 | 47.0 | 38.2 | 28.9 | 19.6 | 11.1 | 28.5 |
| Highest Mean Min. Temperature (F) | 18.4 | 19.0 | 25.6 | 32.0 | 39.8 | 50.3 | 52.2 | 51.7 | 44.3 | 33.2 | 26.5 | 21.4 | 31.6 |
| Year Highest Occurred | 1971 | 1986 | 1978 | 1981 | 1987 | 1988 | 1966 | 1982 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -3.1 | 3.8 | 9.0 | 21.2 | 31.8 | 39.6 | 47.0 | 41.8 | 33.0 | 23.6 | 12.1 | 3.7 | 26.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1966 | 1983 | 1969 | 1971 | 1974 | 1974 | 1970 | 1979 | 1967 | 1964 |
| Mean Precipitation (in.) | 0.41 | 0.48 | 0.75 | 1.04 | 1.25 | 0.96 | 1.18 | 0.91 | 0.96 | 0.96 | 0.63 | 0.52 | 10.05 |
| Highest Precipitation (in.) | 2.03 | 1.92 | 1.71 | 3.15 | 3.55 | 2.31 | 3.45 | 2.29 | 2.94 | 3.24 | 2.28 | 1.46 | 15.24 |
| Year Highest Occurred | 1980 | 1989 | 1988 | 1968 | 1965 | 1986 | 1984 | 1984 | 1961 | 1972 | 1983 | 1967 | 1967 |
| Lowest Precipitation (in.) | 0.02 | 0.02 | 0.29 | 0.06 | 0.09 | 0.00 | 0.15 | 0.22 | 0.15 | 0.01 | 0.00 | 0.00 | 5.88 |
| Year Lowest Occurred | 1983 | 1970 | 1971 | 1989 | 1974 | 1981 | 1979 | 1985 | 1979 | 1988 | 1976 | 1977 | 1971 |
| Heating Degree Days (F) | 1349. | 1123. | 1042. | 729. | 453. | 178. | 22. | 77. | 307. | 642. | 999. | 1302. | 8223. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 22. | 68. | 46. | 7. | 0. | 0. | 0. | 143. |