| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.1 | 53.5 | 58.7 | 67.2 | 76.9 | 87.4 | 92.5 | 89.8 | 82.7 | 72.7 | 58.9 | 49.5 | 69.8 |
| Highest Mean Max. Temperature (F) | 58.8 | 61.6 | 70.5 | 75.8 | 85.4 | 93.5 | 96.6 | 93.2 | 87.8 | 80.5 | 65.1 | 60.2 | 72.5 |
| Year Highest Occurred | 1986 | 1977 | 1972 | 1989 | 1984 | 1961 | 1989 | 1985 | 1979 | 1964 | 1976 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 38.3 | 44.8 | 51.0 | 57.3 | 70.1 | 81.6 | 89.2 | 83.8 | 76.6 | 64.3 | 52.0 | 41.1 | 67.7 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1975 | 1977 | 1965 | 1968 | 1968 | 1986 | 1972 | 1985 | 1967 | 1975 |
| Mean Temperature (F) | 35.3 | 39.9 | 44.5 | 51.4 | 60.0 | 69.3 | 75.5 | 73.4 | 66.2 | 56.4 | 44.7 | 36.5 | 54.4 |
| Highest Mean Temperature (F) | 43.9 | 44.6 | 52.0 | 58.4 | 66.1 | 75.4 | 80.0 | 76.0 | 70.0 | 62.6 | 49.2 | 45.0 | 56.8 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1961 | 1961 | 1961 | 1979 | 1988 | 1962 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 27.5 | 32.4 | 39.2 | 43.7 | 55.6 | 64.1 | 73.2 | 69.3 | 61.4 | 51.1 | 40.3 | 29.4 | 52.1 |
| Year Lowest Occurred | 1973 | 1966 | 1964 | 1975 | 1977 | 1965 | 1987 | 1968 | 1986 | 1984 | 1972 | 1967 | 1975 |
| Mean Min. Temperature (F) | 22.4 | 26.4 | 30.3 | 35.6 | 43.1 | 51.2 | 58.5 | 57.1 | 49.6 | 40.0 | 30.5 | 23.4 | 39.0 |
| Highest Mean Min. Temperature (F) | 29.2 | 32.5 | 35.9 | 41.0 | 46.7 | 57.3 | 64.8 | 62.3 | 54.7 | 44.9 | 34.3 | 29.7 | 41.1 |
| Year Highest Occurred | 1980 | 1968 | 1978 | 1989 | 1984 | 1961 | 1961 | 1961 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 15.5 | 18.8 | 24.7 | 29.8 | 39.5 | 46.5 | 56.0 | 53.0 | 43.9 | 35.4 | 25.8 | 16.5 | 36.4 |
| Year Lowest Occurred | 1973 | 1964 | 1964 | 1970 | 1975 | 1965 | 1987 | 1975 | 1965 | 1970 | 1975 | 1990 | 1975 |
| Mean Precipitation (in.) | 1.49 | 1.32 | 1.60 | 0.92 | 0.72 | 0.32 | 1.01 | 1.49 | 0.94 | 0.98 | 1.27 | 1.24 | 13.30 |
| Highest Precipitation (in.) | 6.51 | 5.77 | 4.96 | 3.94 | 2.67 | 1.42 | 3.05 | 3.75 | 2.98 | 3.98 | 4.68 | 7.15 | 24.49 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1988 | 1965 | 1972 | 1975 | 1963 | 1983 | 1972 | 1978 | 1966 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.15 | 0.00 | 0.00 | 0.02 | 0.00 | 6.17 |
| Year Lowest Occurred | 1976 | 1972 | 1972 | 1989 | 1970 | 1989 | 1972 | 1962 | 1973 | 1964 | 1976 | 1989 | 1989 |
| Heating Degree Days (F) | 921. | 703. | 636. | 415. | 180. | 32. | 0. | 0. | 54. | 281. | 609. | 884. | 4715. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 25. | 161. | 326. | 260. | 90. | 14. | 0. | 0. | 883. |