| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 50.6 | 54.4 | 63.0 | 72.4 | 80.4 | 87.6 | 90.5 | 88.3 | 81.9 | 72.9 | 60.7 | 51.9 | 71.2 |
| Highest Mean Max. Temperature (F) | 58.5 | 65.2 | 71.8 | 78.8 | 88.1 | 97.5 | 97.0 | 95.8 | 89.8 | 79.1 | 69.2 | 60.4 | 73.2 |
| Year Highest Occurred | 1969 | 1976 | 1972 | 1978 | 1962 | 1990 | 1980 | 1983 | 1983 | 1963 | 1965 | 1970 | 1977 |
| Lowest Mean Max. Temperature (F) | 39.1 | 42.4 | 51.9 | 64.3 | 76.1 | 81.1 | 82.7 | 82.1 | 73.6 | 65.9 | 53.2 | 38.9 | 68.6 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1973 | 1980 | 1989 | 1976 | 1971 | 1974 | 1969 | 1972 | 1983 | 1987 |
| Mean Temperature (F) | 35.0 | 38.7 | 46.0 | 55.4 | 64.1 | 72.4 | 76.0 | 74.1 | 67.3 | 56.8 | 45.1 | 36.7 | 55.6 |
| Highest Mean Temperature (F) | 41.6 | 46.5 | 53.2 | 59.8 | 69.5 | 79.1 | 80.1 | 77.9 | 71.4 | 62.7 | 51.6 | 42.1 | 57.0 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1972 | 1962 | 1990 | 1966 | 1983 | 1983 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 27.1 | 31.3 | 38.3 | 48.8 | 59.9 | 68.4 | 70.7 | 70.4 | 61.4 | 50.0 | 38.8 | 26.6 | 54.1 |
| Year Lowest Occurred | 1979 | 1978 | 1965 | 1973 | 1976 | 1989 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 19.4 | 23.0 | 28.9 | 38.3 | 47.8 | 57.2 | 61.5 | 59.9 | 52.8 | 40.8 | 29.4 | 21.5 | 40.0 |
| Highest Mean Min. Temperature (F) | 24.8 | 29.3 | 34.7 | 43.3 | 51.7 | 60.7 | 65.5 | 62.5 | 56.4 | 46.2 | 34.0 | 27.0 | 42.4 |
| Year Highest Occurred | 1986 | 1987 | 1974 | 1967 | 1974 | 1990 | 1966 | 1969 | 1990 | 1963 | 1978 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | 11.7 | 18.0 | 22.2 | 32.2 | 41.4 | 52.8 | 58.6 | 56.6 | 47.4 | 33.9 | 23.8 | 14.2 | 37.7 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1983 | 1983 | 1983 | 1976 | 1976 | 1975 | 1976 | 1976 | 1983 | 1975 |
| Mean Precipitation (in.) | 0.43 | 0.57 | 0.76 | 0.84 | 2.26 | 2.92 | 2.25 | 2.82 | 2.38 | 1.50 | 0.74 | 0.50 | 17.97 |
| Highest Precipitation (in.) | 1.72 | 1.70 | 3.12 | 2.31 | 9.92 | 7.19 | 5.22 | 7.18 | 5.84 | 5.45 | 2.68 | 2.06 | 31.53 |
| Year Highest Occurred | 1983 | 1986 | 1973 | 1988 | 1987 | 1965 | 1967 | 1986 | 1986 | 1974 | 1961 | 1986 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.25 | 0.02 | 0.31 | 0.04 | 0.00 | 0.00 | 0.00 | 8.81 |
| Year Lowest Occurred | 1986 | 1974 | 1966 | 1964 | 1974 | 1990 | 1964 | 1983 | 1982 | 1975 | 1989 | 1976 | 1970 |
| Heating Degree Days (F) | 930. | 736. | 589. | 299. | 93. | 8. | 0. | 0. | 39. | 262. | 597. | 877. | 4430. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 65. | 230. | 341. | 282. | 108. | 8. | 0. | 0. | 1045. |