| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.5 | 41.5 | 50.1 | 60.2 | 69.4 | 79.2 | 88.4 | 86.3 | 76.3 | 64.8 | 47.3 | 36.5 | 61.2 |
| Highest Mean Max. Temperature (F) | 41.8 | 50.8 | 59.5 | 71.5 | 75.5 | 88.2 | 94.0 | 92.5 | 83.9 | 73.7 | 53.2 | 46.4 | 64.5 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1966 | 1986 | 1985 | 1981 | 1979 | 1988 | 1976 | 1977 | 1987 |
| Lowest Mean Max. Temperature (F) | 24.8 | 31.0 | 40.4 | 50.2 | 62.0 | 71.1 | 83.9 | 77.8 | 67.8 | 56.2 | 37.1 | 23.5 | 57.8 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1977 | 1963 | 1982 | 1968 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 25.6 | 31.6 | 38.4 | 46.3 | 54.9 | 63.6 | 71.2 | 69.1 | 59.4 | 49.0 | 36.8 | 27.4 | 47.8 |
| Highest Mean Temperature (F) | 33.4 | 40.0 | 46.4 | 52.6 | 59.5 | 71.1 | 75.3 | 72.9 | 65.2 | 56.2 | 41.7 | 36.1 | 49.7 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1990 | 1987 | 1986 | 1989 | 1986 | 1990 | 1988 | 1965 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 15.8 | 21.3 | 30.0 | 39.8 | 50.4 | 58.7 | 67.8 | 64.0 | 53.3 | 43.6 | 26.9 | 13.7 | 43.9 |
| Year Lowest Occurred | 1979 | 1964 | 1985 | 1975 | 1977 | 1963 | 1983 | 1968 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 16.8 | 21.6 | 26.6 | 32.4 | 40.3 | 48.0 | 53.8 | 51.7 | 42.3 | 33.1 | 26.3 | 18.2 | 34.3 |
| Highest Mean Min. Temperature (F) | 26.7 | 29.2 | 33.2 | 37.1 | 44.7 | 53.9 | 56.7 | 56.3 | 49.4 | 38.7 | 30.3 | 25.7 | 35.9 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1990 | 1987 | 1986 | 1989 | 1983 | 1963 | 1988 | 1965 | 1977 | 1967 |
| Lowest Mean Min. Temperature (F) | 5.8 | 10.3 | 18.5 | 28.5 | 37.4 | 44.3 | 50.6 | 47.0 | 38.0 | 29.5 | 16.6 | 3.8 | 30.0 |
| Year Lowest Occurred | 1985 | 1964 | 1985 | 1970 | 1975 | 1980 | 1981 | 1980 | 1965 | 1980 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.20 | 0.95 | 0.94 | 0.76 | 1.02 | 0.81 | 0.24 | 0.45 | 0.63 | 0.65 | 1.34 | 1.18 | 10.17 |
| Highest Precipitation (in.) | 3.87 | 4.88 | 2.62 | 1.91 | 2.48 | 2.83 | 1.16 | 3.26 | 2.47 | 2.37 | 3.57 | 4.72 | 17.31 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1965 | 1962 | 1963 | 1977 | 1968 | 1978 | 1975 | 1988 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.19 | 0.01 | 0.13 | 0.04 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 4.30 |
| Year Lowest Occurred | 1961 | 1967 | 1976 | 1977 | 1969 | 1989 | 1990 | 1988 | 1987 | 1988 | 1976 | 1986 | 1966 |
| Heating Degree Days (F) | 1221. | 935. | 825. | 561. | 318. | 124. | 8. | 37. | 206. | 496. | 846. | 1166. | 6743. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 82. | 201. | 164. | 38. | 0. | 0. | 0. | 485. |