| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.6 | 46.3 | 58.2 | 67.8 | 76.3 | 85.0 | 93.3 | 91.8 | 81.7 | 68.3 | 51.4 | 38.5 | 66.3 |
| Highest Mean Max. Temperature (F) | 45.8 | 55.9 | 64.5 | 75.7 | 83.1 | 94.3 | 98.4 | 100.0 | 89.6 | 77.9 | 56.2 | 44.4 | 69.6 |
| Year Highest Occurred | 1966 | 1963 | 1986 | 1987 | 1966 | 1961 | 1967 | 1967 | 1990 | 1988 | 1965 | 1987 | 1966 |
| Lowest Mean Max. Temperature (F) | 24.6 | 33.5 | 51.9 | 58.8 | 69.1 | 78.8 | 87.3 | 84.0 | 73.6 | 62.2 | 40.0 | 22.5 | 61.3 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1984 | 1983 | 1976 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 27.8 | 35.6 | 44.4 | 51.9 | 59.9 | 68.0 | 74.6 | 73.0 | 63.3 | 51.7 | 39.9 | 29.6 | 51.6 |
| Highest Mean Temperature (F) | 36.3 | 43.0 | 50.9 | 58.1 | 65.5 | 74.2 | 77.9 | 78.0 | 72.0 | 60.3 | 43.9 | 36.9 | 54.6 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1990 | 1987 | 1961 | 1990 | 1967 | 1990 | 1988 | 1988 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 13.7 | 21.8 | 39.1 | 46.1 | 54.7 | 63.0 | 70.5 | 66.4 | 57.5 | 47.1 | 29.3 | 12.1 | 46.5 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1984 | 1983 | 1976 | 1985 | 1976 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 19.0 | 24.8 | 30.6 | 36.0 | 43.5 | 51.1 | 55.9 | 54.2 | 44.9 | 35.1 | 28.4 | 20.6 | 37.0 |
| Highest Mean Min. Temperature (F) | 29.4 | 32.2 | 37.3 | 41.9 | 50.5 | 57.3 | 60.7 | 60.4 | 54.4 | 42.6 | 35.1 | 29.7 | 39.8 |
| Year Highest Occurred | 1981 | 1983 | 1986 | 1990 | 1987 | 1986 | 1990 | 1990 | 1990 | 1988 | 1988 | 1973 | 1987 |
| Lowest Mean Min. Temperature (F) | 2.8 | 10.1 | 22.7 | 30.7 | 40.3 | 47.0 | 52.5 | 48.7 | 39.7 | 28.0 | 18.5 | 1.7 | 31.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1982 | 1976 | 1963 | 1976 | 1971 | 1976 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.45 | 1.13 | 1.04 | 0.81 | 0.75 | 0.78 | 0.23 | 0.48 | 0.53 | 0.70 | 1.53 | 1.64 | 11.07 |
| Highest Precipitation (in.) | 4.43 | 2.75 | 4.46 | 3.47 | 2.34 | 2.66 | 1.11 | 2.55 | 2.31 | 2.49 | 4.12 | 4.12 | 20.03 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1962 | 1970 | 1982 | 1979 | 1980 | 1982 | 1973 | 1981 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.07 | 0.18 | 0.05 | 0.06 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.08 | 5.89 |
| Year Lowest Occurred | 1985 | 1967 | 1963 | 1977 | 1978 | 1973 | 1989 | 1980 | 1987 | 1988 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1153. | 823. | 639. | 398. | 178. | 52. | 0. | 13. | 133. | 412. | 753. | 1097. | 5651. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 20. | 142. | 298. | 261. | 82. | 0. | 0. | 0. | 803. |