| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.0 | 40.0 | 48.4 | 59.5 | 69.7 | 79.2 | 87.2 | 85.5 | 76.6 | 65.2 | 48.1 | 36.2 | 60.8 |
| Highest Mean Max. Temperature (F) | 46.3 | 48.7 | 57.1 | 67.9 | 77.7 | 86.5 | 91.3 | 90.8 | 83.3 | 72.8 | 55.6 | 46.3 | 63.7 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1987 | 1969 | 1974 | 1971 | 1971 | 1979 | 1964 | 1962 | 1962 | 1981 |
| Lowest Mean Max. Temperature (F) | 23.8 | 31.0 | 38.4 | 52.3 | 63.4 | 72.7 | 82.9 | 78.3 | 68.2 | 54.7 | 42.0 | 28.7 | 56.6 |
| Year Lowest Occurred | 1984 | 1985 | 1964 | 1975 | 1983 | 1967 | 1986 | 1968 | 1965 | 1984 | 1978 | 1978 | 1984 |
| Mean Temperature (F) | 21.3 | 26.6 | 35.2 | 44.1 | 52.6 | 60.5 | 67.9 | 66.1 | 57.6 | 47.4 | 34.9 | 24.0 | 44.9 |
| Highest Mean Temperature (F) | 31.8 | 35.0 | 43.0 | 49.6 | 58.2 | 65.2 | 70.2 | 70.6 | 64.0 | 52.7 | 39.5 | 31.5 | 48.2 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1969 | 1988 | 1990 | 1971 | 1990 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 11.9 | 17.3 | 24.7 | 38.3 | 47.9 | 57.1 | 64.5 | 62.2 | 51.7 | 41.4 | 29.4 | 16.5 | 42.1 |
| Year Lowest Occurred | 1984 | 1985 | 1964 | 1970 | 1975 | 1967 | 1962 | 1968 | 1965 | 1984 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 8.4 | 13.1 | 21.9 | 28.7 | 35.5 | 41.8 | 48.4 | 46.7 | 38.5 | 29.5 | 21.5 | 11.8 | 28.8 |
| Highest Mean Min. Temperature (F) | 19.3 | 23.7 | 29.0 | 33.8 | 38.7 | 45.8 | 51.3 | 51.7 | 45.1 | 35.1 | 27.0 | 19.7 | 32.6 |
| Year Highest Occurred | 1981 | 1986 | 1986 | 1989 | 1987 | 1988 | 1990 | 1983 | 1990 | 1972 | 1970 | 1981 | 1981 |
| Lowest Mean Min. Temperature (F) | -0.1 | 1.4 | 10.9 | 24.0 | 30.5 | 38.5 | 44.2 | 40.8 | 34.5 | 25.3 | 14.6 | 2.6 | 26.2 |
| Year Lowest Occurred | 1984 | 1964 | 1964 | 1970 | 1975 | 1976 | 1962 | 1974 | 1971 | 1976 | 1969 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.78 | 1.56 | 1.36 | 1.38 | 1.22 | 0.90 | 0.87 | 0.98 | 1.26 | 1.50 | 1.66 | 1.62 | 16.09 |
| Highest Precipitation (in.) | 8.41 | 4.78 | 2.84 | 3.71 | 2.67 | 3.55 | 2.81 | 2.94 | 5.55 | 4.28 | 3.64 | 5.40 | 25.75 |
| Year Highest Occurred | 1980 | 1986 | 1975 | 1963 | 1980 | 1964 | 1985 | 1983 | 1982 | 1972 | 1985 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.25 | 0.21 | 0.20 | 0.01 | 0.02 | 0.00 | 0.00 | 0.03 | 0.04 | 0.00 | 0.04 | 7.23 |
| Year Lowest Occurred | 1961 | 1964 | 1969 | 1987 | 1974 | 1979 | 1978 | 1962 | 1974 | 1978 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1355. | 1075. | 924. | 627. | 384. | 160. | 12. | 52. | 235. | 546. | 903. | 1271. | 7544. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 25. | 102. | 86. | 13. | 0. | 0. | 0. | 226. |