| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.2 | 57.5 | 62.1 | 70.4 | 77.9 | 87.0 | 87.3 | 84.1 | 79.2 | 72.5 | 61.7 | 53.6 | 70.5 |
| Highest Mean Max. Temperature (F) | 60.7 | 65.3 | 70.9 | 77.4 | 84.1 | 94.8 | 93.8 | 89.2 | 85.2 | 77.7 | 72.9 | 65.3 | 74.4 |
| Year Highest Occurred | 1986 | 1981 | 1972 | 1989 | 1984 | 1980 | 1980 | 1962 | 1983 | 1981 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 46.7 | 50.3 | 55.7 | 61.4 | 69.3 | 82.5 | 82.7 | 77.5 | 75.0 | 66.2 | 54.7 | 43.1 | 67.1 |
| Year Lowest Occurred | 1989 | 1966 | 1987 | 1983 | 1979 | 1965 | 1990 | 1988 | 1967 | 1976 | 1972 | 1986 | 1987 |
| Mean Temperature (F) | 35.6 | 39.8 | 43.8 | 50.8 | 58.0 | 67.4 | 70.8 | 68.1 | 62.1 | 53.4 | 43.0 | 35.8 | 52.4 |
| Highest Mean Temperature (F) | 40.9 | 46.6 | 50.2 | 55.7 | 62.7 | 72.7 | 74.7 | 70.6 | 67.1 | 55.9 | 47.1 | 45.1 | 55.0 |
| Year Highest Occurred | 1969 | 1984 | 1989 | 1989 | 1984 | 1990 | 1980 | 1962 | 1983 | 1972 | 1981 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 29.8 | 32.0 | 37.9 | 44.4 | 50.8 | 63.7 | 68.1 | 65.3 | 58.2 | 48.2 | 37.6 | 30.9 | 50.1 |
| Year Lowest Occurred | 1964 | 1964 | 1969 | 1983 | 1979 | 1965 | 1987 | 1990 | 1988 | 1976 | 1972 | 1986 | 1987 |
| Mean Min. Temperature (F) | 17.9 | 21.9 | 25.4 | 31.3 | 38.1 | 47.7 | 54.3 | 52.0 | 45.1 | 34.3 | 24.1 | 18.0 | 34.2 |
| Highest Mean Min. Temperature (F) | 23.5 | 32.8 | 35.0 | 39.0 | 42.6 | 53.5 | 57.4 | 55.3 | 50.4 | 42.4 | 29.0 | 24.9 | 36.4 |
| Year Highest Occurred | 1983 | 1984 | 1980 | 1980 | 1989 | 1990 | 1966 | 1988 | 1990 | 1972 | 1986 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 10.2 | 11.4 | 16.6 | 26.7 | 32.3 | 43.7 | 50.6 | 47.2 | 38.8 | 26.7 | 20.0 | 13.3 | 31.5 |
| Year Lowest Occurred | 1964 | 1964 | 1977 | 1970 | 1979 | 1976 | 1987 | 1986 | 1968 | 1980 | 1976 | 1963 | 1976 |
| Mean Precipitation (in.) | 0.48 | 0.38 | 0.24 | 0.21 | 0.53 | 0.78 | 2.81 | 3.16 | 2.54 | 1.18 | 0.51 | 0.64 | 13.46 |
| Highest Precipitation (in.) | 2.21 | 1.55 | 1.30 | 1.44 | 2.20 | 3.03 | 6.06 | 5.86 | 8.63 | 5.21 | 2.32 | 2.05 | 21.68 |
| Year Highest Occurred | 1979 | 1988 | 1977 | 1985 | 1979 | 1981 | 1986 | 1972 | 1975 | 1972 | 1978 | 1984 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.35 | 0.54 | 0.00 | 0.00 | 0.00 | 0.00 | 7.22 |
| Year Lowest Occurred | 1976 | 1990 | 1989 | 1989 | 1983 | 1987 | 1979 | 1962 | 1987 | 1988 | 1989 | 1981 | 1987 |
| Heating Degree Days (F) | 911. | 706. | 657. | 426. | 227. | 41. | 5. | 13. | 108. | 360. | 660. | 905. | 5019. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 113. | 185. | 109. | 21. | 0. | 0. | 0. | 438. |