| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 26.3 | 31.8 | 40.0 | 51.6 | 62.6 | 73.6 | 83.2 | 81.0 | 70.0 | 57.9 | 39.7 | 28.4 | 53.8 |
| Highest Mean Max. Temperature (F) | 36.9 | 42.0 | 48.9 | 61.5 | 70.3 | 82.0 | 87.4 | 85.5 | 77.1 | 66.2 | 46.8 | 40.1 | 58.0 |
| Year Highest Occurred | 1981 | 1970 | 1986 | 1987 | 1969 | 1988 | 1964 | 1969 | 1979 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 12.0 | 20.0 | 31.9 | 42.8 | 56.5 | 68.0 | 77.9 | 74.8 | 61.2 | 49.8 | 30.9 | 19.1 | 50.4 |
| Year Lowest Occurred | 1979 | 1973 | 1969 | 1975 | 1983 | 1967 | 1986 | 1968 | 1965 | 1969 | 1971 | 1990 | 1984 |
| Mean Temperature (F) | 11.9 | 16.8 | 26.7 | 37.2 | 47.2 | 56.6 | 64.5 | 62.1 | 51.3 | 39.8 | 25.3 | 14.1 | 37.8 |
| Highest Mean Temperature (F) | 19.9 | 25.8 | 34.5 | 44.2 | 52.1 | 62.0 | 68.5 | 66.1 | 57.4 | 47.2 | 32.2 | 25.2 | 41.3 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1990 | 1969 | 1988 | 1989 | 1971 | 1963 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | -2.3 | 4.8 | 19.1 | 31.2 | 41.8 | 53.0 | 60.9 | 56.6 | 46.1 | 34.1 | 19.0 | 5.2 | 34.5 |
| Year Lowest Occurred | 1979 | 1973 | 1969 | 1970 | 1978 | 1978 | 1986 | 1978 | 1965 | 1984 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | -2.5 | 1.7 | 13.2 | 22.7 | 31.8 | 39.6 | 45.8 | 43.2 | 32.6 | 21.5 | 11.0 | -0.2 | 21.7 |
| Highest Mean Min. Temperature (F) | 8.5 | 10.9 | 22.1 | 28.5 | 35.3 | 43.9 | 50.0 | 47.7 | 40.7 | 28.3 | 19.6 | 10.2 | 24.6 |
| Year Highest Occurred | 1971 | 1971 | 1974 | 1990 | 1963 | 1972 | 1990 | 1983 | 1963 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -16.6 | -11.0 | 3.7 | 16.6 | 26.5 | 35.2 | 40.9 | 35.5 | 26.6 | 13.1 | 2.4 | -8.7 | 18.5 |
| Year Lowest Occurred | 1979 | 1984 | 1977 | 1970 | 1978 | 1978 | 1978 | 1978 | 1978 | 1976 | 1979 | 1990 | 1984 |
| Mean Precipitation (in.) | 0.23 | 0.26 | 0.36 | 0.65 | 1.07 | 0.95 | 0.73 | 0.63 | 0.91 | 0.59 | 0.35 | 0.27 | 7.00 |
| Highest Precipitation (in.) | 1.01 | 0.97 | 1.00 | 1.84 | 3.06 | 3.61 | 2.85 | 1.95 | 5.24 | 2.33 | 1.24 | 0.92 | 13.33 |
| Year Highest Occurred | 1980 | 1986 | 1981 | 1971 | 1987 | 1967 | 1973 | 1983 | 1982 | 1986 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.02 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 2.81 |
| Year Lowest Occurred | 1989 | 1977 | 1984 | 1985 | 1974 | 1973 | 1988 | 1985 | 1974 | 1984 | 1976 | 1976 | 1974 |
| Heating Degree Days (F) | 1646. | 1350. | 1187. | 834. | 552. | 260. | 74. | 133. | 411. | 781. | 1191. | 1578. | 9997. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 59. | 43. | 0. | 0. | 0. | 0. | 110. |