| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.9 | 58.6 | 61.4 | 68.0 | 77.2 | 86.3 | 93.8 | 93.1 | 86.6 | 76.1 | 61.8 | 54.5 | 72.7 |
| Highest Mean Max. Temperature (F) | 60.8 | 66.0 | 68.2 | 75.9 | 84.0 | 92.2 | 97.7 | 100.5 | 94.1 | 82.3 | 69.0 | 62.7 | 74.4 |
| Year Highest Occurred | 1984 | 1988 | 1988 | 1966 | 1973 | 1977 | 1967 | 1967 | 1974 | 1978 | 1976 | 1989 | 1966 |
| Lowest Mean Max. Temperature (F) | 50.0 | 49.4 | 56.5 | 53.3 | 67.3 | 79.8 | 85.4 | 83.8 | 77.1 | 68.6 | 55.3 | 47.8 | 69.3 |
| Year Lowest Occurred | 1973 | 1969 | 1983 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1973 | 1972 | 1983 |
| Mean Temperature (F) | 42.2 | 45.6 | 48.3 | 53.0 | 60.5 | 68.4 | 73.6 | 72.7 | 66.7 | 58.1 | 48.2 | 42.4 | 56.6 |
| Highest Mean Temperature (F) | 46.2 | 51.1 | 52.8 | 58.7 | 65.7 | 74.1 | 77.4 | 75.5 | 70.6 | 62.2 | 52.6 | 46.2 | 58.6 |
| Year Highest Occurred | 1984 | 1963 | 1986 | 1985 | 1973 | 1977 | 1988 | 1967 | 1967 | 1987 | 1967 | 1969 | 1981 |
| Lowest Mean Temperature (F) | 38.3 | 40.5 | 45.2 | 43.7 | 55.6 | 63.9 | 68.0 | 68.1 | 61.7 | 54.1 | 44.3 | 37.0 | 55.3 |
| Year Lowest Occurred | 1963 | 1966 | 1982 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1971 | 1985 | 1972 | 1982 |
| Mean Min. Temperature (F) | 29.4 | 32.6 | 35.1 | 38.0 | 43.8 | 50.5 | 53.3 | 52.2 | 46.7 | 40.1 | 34.6 | 30.2 | 40.5 |
| Highest Mean Min. Temperature (F) | 36.0 | 39.3 | 40.7 | 42.3 | 47.5 | 55.9 | 58.4 | 55.5 | 51.2 | 45.3 | 39.9 | 37.5 | 43.3 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1981 | 1977 | 1988 | 1990 | 1981 | 1987 | 1973 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 22.8 | 26.6 | 30.8 | 32.2 | 38.3 | 46.7 | 45.5 | 47.9 | 39.8 | 33.8 | 30.4 | 21.7 | 37.7 |
| Year Lowest Occurred | 1963 | 1966 | 1964 | 1964 | 1965 | 1965 | 1966 | 1970 | 1965 | 1966 | 1969 | 1990 | 1965 |
| Mean Precipitation (in.) | 5.45 | 4.54 | 3.60 | 1.50 | 0.50 | 0.16 | 0.06 | 0.15 | 0.46 | 1.58 | 3.89 | 4.28 | 26.17 |
| Highest Precipitation (in.) | 12.76 | 26.73 | 12.05 | 5.19 | 3.78 | 1.39 | 0.70 | 1.97 | 4.11 | 7.40 | 10.44 | 13.00 | 61.88 |
| Year Highest Occurred | 1978 | 1986 | 1983 | 1963 | 1990 | 1967 | 1974 | 1965 | 1989 | 1962 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.27 | 0.02 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 8.17 |
| Year Lowest Occurred | 1976 | 1971 | 1988 | 1990 | 1985 | 1986 | 1990 | 1990 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 707. | 543. | 518. | 371. | 164. | 30. | 6. | 0. | 51. | 219. | 504. | 701. | 3814. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 24. | 132. | 273. | 242. | 102. | 5. | 0. | 0. | 789. |