| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.6 | 39.3 | 44.6 | 54.0 | 62.9 | 73.5 | 77.6 | 75.1 | 69.7 | 60.9 | 46.1 | 35.8 | 56.2 |
| Highest Mean Max. Temperature (F) | 44.1 | 46.8 | 55.3 | 62.3 | 68.8 | 79.3 | 82.3 | 78.2 | 77.5 | 68.0 | 53.3 | 49.5 | 59.9 |
| Year Highest Occurred | 1981 | 1974 | 1974 | 1981 | 1974 | 1981 | 1989 | 1980 | 1979 | 1988 | 1973 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 29.0 | 30.6 | 37.3 | 46.1 | 55.5 | 65.5 | 74.6 | 70.6 | 63.0 | 46.9 | 37.1 | 29.0 | 52.9 |
| Year Lowest Occurred | 1979 | 1966 | 1964 | 1970 | 1965 | 1965 | 1986 | 1968 | 1965 | 1969 | 1972 | 1972 | 1970 |
| Mean Temperature (F) | 15.3 | 20.3 | 27.9 | 37.7 | 46.5 | 55.4 | 60.7 | 58.6 | 52.2 | 42.8 | 29.4 | 18.2 | 38.8 |
| Highest Mean Temperature (F) | 25.4 | 26.7 | 36.0 | 44.2 | 51.9 | 60.2 | 64.6 | 61.3 | 57.8 | 48.4 | 35.4 | 31.5 | 42.5 |
| Year Highest Occurred | 1981 | 1986 | 1989 | 1989 | 1963 | 1981 | 1989 | 1983 | 1979 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 7.9 | 12.0 | 17.4 | 32.1 | 40.2 | 48.7 | 58.1 | 54.2 | 47.0 | 33.0 | 20.6 | 9.5 | 35.6 |
| Year Lowest Occurred | 1973 | 1964 | 1965 | 1970 | 1965 | 1965 | 1962 | 1974 | 1970 | 1969 | 1972 | 1972 | 1965 |
| Mean Min. Temperature (F) | -4.0 | 1.3 | 11.1 | 21.3 | 30.1 | 37.3 | 43.7 | 42.0 | 34.6 | 24.6 | 12.7 | 0.6 | 21.3 |
| Highest Mean Min. Temperature (F) | 7.0 | 12.8 | 20.2 | 28.5 | 35.9 | 41.1 | 47.5 | 46.2 | 39.6 | 30.6 | 18.8 | 13.5 | 25.2 |
| Year Highest Occurred | 1980 | 1986 | 1990 | 1990 | 1963 | 1990 | 1963 | 1983 | 1990 | 1963 | 1962 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -14.3 | -12.5 | -4.3 | 14.6 | 24.9 | 31.9 | 39.4 | 33.8 | 28.5 | 17.4 | 4.0 | -10.1 | 16.5 |
| Year Lowest Occurred | 1973 | 1974 | 1965 | 1974 | 1965 | 1965 | 1974 | 1974 | 1970 | 1976 | 1972 | 1972 | 1974 |
| Mean Precipitation (in.) | 0.74 | 0.72 | 0.93 | 1.05 | 0.90 | 0.78 | 1.96 | 2.21 | 1.42 | 1.16 | 1.04 | 1.06 | 13.97 |
| Highest Precipitation (in.) | 3.34 | 2.37 | 1.84 | 2.25 | 2.07 | 3.14 | 5.51 | 6.60 | 3.89 | 4.49 | 3.03 | 3.72 | 19.52 |
| Year Highest Occurred | 1980 | 1987 | 1985 | 1990 | 1990 | 1969 | 1981 | 1982 | 1985 | 1969 | 1964 | 1973 | 1984 |
| Lowest Precipitation (in.) | 0.03 | 0.02 | 0.10 | 0.32 | 0.10 | 0.00 | 0.51 | 0.63 | 0.15 | 0.00 | 0.16 | 0.00 | 8.82 |
| Year Lowest Occurred | 1971 | 1972 | 1966 | 1988 | 1974 | 1980 | 1987 | 1962 | 1974 | 1973 | 1989 | 1976 | 1976 |
| Heating Degree Days (F) | 1541. | 1252. | 1150. | 819. | 574. | 294. | 144. | 204. | 384. | 688. | 1068. | 1451. | 9569. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 10. | 6. | 0. | 0. | 0. | 0. | 22. |