| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.4 | 44.9 | 52.1 | 61.6 | 71.9 | 83.1 | 87.7 | 84.4 | 76.6 | 65.9 | 51.3 | 41.1 | 63.3 |
| Highest Mean Max. Temperature (F) | 50.7 | 52.1 | 62.4 | 69.9 | 77.6 | 88.8 | 91.9 | 89.5 | 83.1 | 74.3 | 57.5 | 47.9 | 67.7 |
| Year Highest Occurred | 1986 | 1986 | 1989 | 1989 | 1989 | 1988 | 1984 | 1985 | 1983 | 1988 | 1989 | 1989 | 1989 |
| Lowest Mean Max. Temperature (F) | 29.5 | 37.8 | 46.0 | 47.2 | 65.7 | 77.2 | 82.3 | 78.9 | 65.5 | 54.7 | 42.1 | 31.5 | 58.7 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1984 | 1978 | 1967 | 1990 | 1968 | 1982 | 1984 | 1972 | 1990 | 1982 |
| Mean Temperature (F) | 22.3 | 29.0 | 36.3 | 44.0 | 52.8 | 62.1 | 68.5 | 66.1 | 58.2 | 47.9 | 35.8 | 25.6 | 45.7 |
| Highest Mean Temperature (F) | 33.1 | 36.8 | 43.2 | 49.4 | 58.8 | 67.5 | 72.7 | 71.6 | 63.4 | 52.8 | 41.4 | 31.3 | 48.6 |
| Year Highest Occurred | 1986 | 1986 | 1989 | 1989 | 1984 | 1988 | 1984 | 1983 | 1983 | 1988 | 1984 | 1984 | 1986 |
| Lowest Mean Temperature (F) | 14.7 | 18.3 | 31.8 | 37.8 | 49.1 | 56.7 | 65.6 | 61.9 | 51.0 | 42.1 | 28.9 | 16.0 | 42.8 |
| Year Lowest Occurred | 1979 | 1974 | 1970 | 1970 | 1978 | 1982 | 1968 | 1968 | 1982 | 1982 | 1979 | 1990 | 1982 |
| Mean Min. Temperature (F) | 6.0 | 13.0 | 20.5 | 26.4 | 33.6 | 41.0 | 49.4 | 47.8 | 39.8 | 29.9 | 20.3 | 10.2 | 28.2 |
| Highest Mean Min. Temperature (F) | 16.5 | 21.5 | 25.7 | 32.6 | 40.5 | 46.5 | 53.5 | 53.6 | 45.7 | 37.3 | 29.9 | 18.7 | 32.1 |
| Year Highest Occurred | 1980 | 1986 | 1990 | 1990 | 1984 | 1984 | 1984 | 1983 | 1990 | 1972 | 1984 | 1984 | 1984 |
| Lowest Mean Min. Temperature (F) | -1.0 | -2.3 | 15.4 | 20.4 | 29.8 | 35.5 | 44.0 | 43.3 | 35.2 | 24.5 | 14.0 | 0.5 | 24.9 |
| Year Lowest Occurred | 1975 | 1974 | 1977 | 1970 | 1971 | 1982 | 1968 | 1966 | 1971 | 1976 | 1979 | 1990 | 1975 |
| Mean Precipitation (in.) | 1.24 | 0.97 | 1.29 | 0.87 | 0.81 | 0.51 | 1.36 | 1.79 | 1.58 | 1.46 | 1.20 | 1.30 | 14.38 |
| Highest Precipitation (in.) | 4.70 | 3.36 | 3.78 | 2.30 | 2.27 | 1.82 | 3.40 | 3.84 | 4.53 | 7.04 | 3.50 | 4.45 | 21.48 |
| Year Highest Occurred | 1980 | 1980 | 1982 | 1985 | 1978 | 1967 | 1977 | 1964 | 1970 | 1972 | 1986 | 1982 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.06 | 0.03 | 0.00 | 0.00 | 0.20 | 0.31 | 0.00 | 0.00 | 0.00 | 0.01 | 6.92 |
| Year Lowest Occurred | 1972 | 1972 | 1971 | 1989 | 1970 | 1989 | 1978 | 1962 | 1968 | 1964 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1324. | 1008. | 890. | 630. | 378. | 131. | 14. | 58. | 219. | 530. | 876. | 1221. | 7279. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 44. | 123. | 92. | 15. | 0. | 0. | 0. | 274. |