| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 57.1 | 60.6 | 68.8 | 76.2 | 82.7 | 87.6 | 90.2 | 89.2 | 85.0 | 77.0 | 69.5 | 61.0 | 75.4 |
| Highest Mean Max. Temperature (F) | 70.4 | 70.0 | 74.1 | 80.2 | 89.2 | 93.0 | 96.1 | 93.3 | 90.5 | 82.3 | 75.9 | 67.7 | 80.3 |
| Year Highest Occurred | 1974 | 1976 | 1961 | 1967 | 1962 | 1981 | 1986 | 1980 | 1990 | 1990 | 1990 | 1971 | 1990 |
| Lowest Mean Max. Temperature (F) | 47.3 | 51.5 | 62.8 | 71.0 | 77.4 | 83.9 | 86.7 | 85.0 | 80.6 | 72.1 | 61.7 | 52.1 | 73.4 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1983 | 1972 | 1979 | 1964 | 1981 | 1967 | 1976 | 1976 | 1989 | 1983 |
| Mean Temperature (F) | 44.9 | 47.8 | 55.7 | 62.6 | 70.5 | 76.9 | 80.0 | 79.3 | 74.6 | 64.4 | 56.1 | 48.3 | 63.4 |
| Highest Mean Temperature (F) | 59.5 | 56.6 | 60.7 | 66.4 | 75.5 | 81.9 | 84.4 | 81.9 | 78.4 | 70.8 | 65.7 | 57.5 | 67.2 |
| Year Highest Occurred | 1974 | 1990 | 1976 | 1967 | 1962 | 1981 | 1986 | 1987 | 1980 | 1985 | 1985 | 1971 | 1990 |
| Lowest Mean Temperature (F) | 36.0 | 39.9 | 49.8 | 57.8 | 67.9 | 72.3 | 77.0 | 76.2 | 69.1 | 58.9 | 49.2 | 40.5 | 61.9 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1983 | 1972 | 1972 | 1974 | 1976 | 1967 | 1987 | 1976 | 1989 | 1969 |
| Mean Min. Temperature (F) | 32.8 | 35.1 | 42.5 | 48.9 | 58.3 | 66.1 | 69.8 | 69.4 | 64.1 | 51.8 | 42.7 | 35.6 | 51.4 |
| Highest Mean Min. Temperature (F) | 48.5 | 43.7 | 48.8 | 52.5 | 62.8 | 70.8 | 72.6 | 71.8 | 67.2 | 61.1 | 55.8 | 47.2 | 54.0 |
| Year Highest Occurred | 1974 | 1990 | 1973 | 1967 | 1975 | 1981 | 1986 | 1983 | 1979 | 1985 | 1985 | 1971 | 1990 |
| Lowest Mean Min. Temperature (F) | 24.7 | 26.4 | 36.8 | 44.5 | 54.6 | 60.1 | 66.1 | 66.5 | 57.5 | 43.6 | 36.6 | 28.4 | 49.7 |
| Year Lowest Occurred | 1977 | 1968 | 1969 | 1983 | 1989 | 1972 | 1974 | 1976 | 1967 | 1974 | 1976 | 1963 | 1988 |
| Mean Precipitation (in.) | 3.99 | 3.61 | 4.48 | 3.11 | 4.27 | 6.08 | 6.06 | 6.94 | 4.78 | 3.12 | 2.54 | 3.30 | 52.28 |
| Highest Precipitation (in.) | 7.87 | 7.25 | 11.58 | 8.39 | 8.06 | 19.42 | 14.00 | 16.26 | 14.00 | 10.76 | 5.91 | 6.12 | 68.89 |
| Year Highest Occurred | 1964 | 1964 | 1980 | 1961 | 1976 | 1973 | 1966 | 1988 | 1979 | 1968 | 1963 | 1972 | 1973 |
| Lowest Precipitation (in.) | 1.00 | 1.19 | 1.00 | 0.01 | 0.78 | 1.41 | 1.32 | 1.71 | 0.03 | 0.20 | 0.44 | 0.56 | 33.19 |
| Year Lowest Occurred | 1981 | 1977 | 1963 | 1976 | 1983 | 1980 | 1988 | 1980 | 1990 | 1972 | 1966 | 1984 | 1978 |
| Heating Degree Days (F) | 633. | 482. | 300. | 104. | 8. | 0. | 0. | 0. | 0. | 115. | 289. | 525. | 2456. |
| Cooling Degree Days (F) | 10. | 0. | 11. | 32. | 178. | 357. | 465. | 443. | 288. | 96. | 22. | 7. | 1909. |