| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.1 | 43.5 | 54.9 | 63.9 | 73.0 | 82.1 | 91.0 | 89.2 | 78.2 | 65.4 | 48.6 | 36.2 | 63.3 |
| Highest Mean Max. Temperature (F) | 42.6 | 52.0 | 61.8 | 74.1 | 78.9 | 90.8 | 96.0 | 95.5 | 86.5 | 75.1 | 54.0 | 44.1 | 66.4 |
| Year Highest Occurred | 1966 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1971 | 1990 | 1988 | 1965 | 1977 | 1987 |
| Lowest Mean Max. Temperature (F) | 23.0 | 27.1 | 49.2 | 55.2 | 66.5 | 76.9 | 85.2 | 82.1 | 70.6 | 60.2 | 37.3 | 19.4 | 59.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1964 | 1983 | 1968 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 27.1 | 34.5 | 43.2 | 51.0 | 59.4 | 68.1 | 75.0 | 73.0 | 62.4 | 51.0 | 39.1 | 29.1 | 51.1 |
| Highest Mean Temperature (F) | 35.1 | 41.0 | 49.5 | 57.8 | 64.9 | 74.8 | 79.7 | 77.5 | 70.3 | 58.8 | 43.6 | 37.3 | 53.2 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1986 | 1990 | 1988 | 1983 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 14.4 | 17.8 | 37.8 | 44.9 | 55.1 | 64.1 | 70.7 | 68.1 | 56.9 | 47.3 | 29.0 | 13.4 | 47.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1983 | 1976 | 1985 | 1970 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 19.9 | 25.5 | 31.5 | 38.1 | 45.9 | 54.0 | 59.0 | 56.8 | 46.6 | 36.6 | 29.6 | 22.0 | 38.8 |
| Highest Mean Min. Temperature (F) | 29.6 | 32.2 | 37.1 | 43.2 | 50.9 | 59.7 | 63.4 | 60.0 | 54.0 | 42.5 | 36.1 | 30.5 | 40.5 |
| Year Highest Occurred | 1981 | 1983 | 1986 | 1990 | 1987 | 1977 | 1975 | 1961 | 1990 | 1988 | 1983 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 5.8 | 8.4 | 24.5 | 32.8 | 43.6 | 50.3 | 55.0 | 53.3 | 40.7 | 33.3 | 20.6 | 7.4 | 35.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1977 | 1976 | 1972 | 1985 | 1971 | 1966 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.22 | 1.04 | 0.92 | 0.78 | 0.79 | 0.86 | 0.25 | 0.48 | 0.62 | 0.68 | 1.25 | 1.41 | 10.30 |
| Highest Precipitation (in.) | 3.76 | 3.53 | 2.27 | 3.39 | 1.95 | 2.17 | 0.74 | 2.41 | 2.11 | 2.10 | 2.61 | 4.69 | 16.22 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1977 | 1964 | 1983 | 1968 | 1980 | 1962 | 1981 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.08 | 0.05 | 0.16 | 0.04 | 0.02 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.23 | 0.05 | 5.79 |
| Year Lowest Occurred | 1985 | 1965 | 1963 | 1961 | 1971 | 1961 | 1979 | 1988 | 1987 | 1988 | 1969 | 1989 | 1966 |
| Heating Degree Days (F) | 1175. | 854. | 676. | 425. | 188. | 49. | 0. | 11. | 146. | 434. | 777. | 1113. | 5848. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 14. | 142. | 310. | 259. | 68. | 0. | 0. | 0. | 793. |