| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.1 | 38.2 | 43.8 | 51.1 | 60.0 | 68.9 | 75.0 | 75.3 | 69.9 | 61.5 | 52.7 | 43.5 | 56.5 |
| Highest Mean Max. Temperature (F) | 44.8 | 44.9 | 48.2 | 54.7 | 62.9 | 72.8 | 78.5 | 79.8 | 77.4 | 70.5 | 58.4 | 51.0 | 58.8 |
| Year Highest Occurred | 1990 | 1976 | 1977 | 1976 | 1979 | 1978 | 1975 | 1975 | 1971 | 1971 | 1975 | 1984 | 1971 |
| Lowest Mean Max. Temperature (F) | 29.5 | 30.1 | 38.7 | 47.8 | 55.0 | 63.4 | 71.7 | 70.8 | 65.6 | 56.4 | 48.1 | 32.3 | 54.7 |
| Year Lowest Occurred | 1981 | 1979 | 1984 | 1982 | 1967 | 1982 | 1986 | 1982 | 1963 | 1981 | 1976 | 1989 | 1981 |
| Mean Temperature (F) | 31.3 | 31.6 | 37.3 | 44.5 | 52.9 | 61.9 | 68.3 | 68.8 | 62.8 | 54.6 | 46.1 | 36.7 | 49.7 |
| Highest Mean Temperature (F) | 39.4 | 38.9 | 41.7 | 46.9 | 57.1 | 66.0 | 72.0 | 72.3 | 69.5 | 62.5 | 50.7 | 43.9 | 52.1 |
| Year Highest Occurred | 1990 | 1984 | 1977 | 1985 | 1979 | 1978 | 1975 | 1978 | 1971 | 1971 | 1975 | 1984 | 1990 |
| Lowest Mean Temperature (F) | 22.6 | 24.5 | 33.1 | 40.7 | 47.9 | 58.1 | 65.6 | 65.6 | 59.7 | 49.1 | 40.5 | 25.1 | 47.7 |
| Year Lowest Occurred | 1981 | 1979 | 1984 | 1972 | 1967 | 1974 | 1972 | 1982 | 1978 | 1972 | 1976 | 1989 | 1972 |
| Mean Min. Temperature (F) | 24.4 | 25.0 | 30.8 | 37.8 | 45.7 | 55.0 | 61.5 | 62.2 | 55.8 | 47.7 | 39.4 | 29.9 | 42.9 |
| Highest Mean Min. Temperature (F) | 33.9 | 33.2 | 35.1 | 41.1 | 51.2 | 59.2 | 65.5 | 66.8 | 61.6 | 54.5 | 43.9 | 36.7 | 45.7 |
| Year Highest Occurred | 1990 | 1984 | 1977 | 1986 | 1979 | 1978 | 1975 | 1978 | 1971 | 1971 | 1963 | 1984 | 1990 |
| Lowest Mean Min. Temperature (F) | 15.7 | 18.8 | 26.7 | 32.3 | 40.8 | 51.2 | 58.5 | 57.5 | 51.3 | 39.8 | 32.9 | 17.8 | 40.0 |
| Year Lowest Occurred | 1981 | 1979 | 1975 | 1972 | 1967 | 1967 | 1972 | 1972 | 1966 | 1972 | 1976 | 1989 | 1972 |
| Mean Precipitation (in.) | 3.72 | 3.43 | 3.61 | 3.59 | 3.48 | 2.92 | 3.10 | 3.09 | 3.30 | 3.64 | 3.98 | 4.14 | 42.00 |
| Highest Precipitation (in.) | 7.37 | 5.89 | 9.20 | 8.28 | 10.38 | 6.83 | 9.24 | 9.89 | 9.49 | 7.45 | 8.51 | 9.74 | 57.20 |
| Year Highest Occurred | 1978 | 1983 | 1983 | 1987 | 1967 | 1977 | 1984 | 1985 | 1972 | 1962 | 1988 | 1969 | 1967 |
| Lowest Precipitation (in.) | 1.19 | 0.75 | 0.67 | 1.35 | 0.59 | 0.25 | 0.07 | 0.33 | 0.07 | 0.88 | 1.00 | 1.08 | 25.31 |
| Year Lowest Occurred | 1973 | 1980 | 1981 | 1976 | 1962 | 1971 | 1974 | 1980 | 1971 | 1965 | 1984 | 1988 | 1965 |
| Heating Degree Days (F) | 1045. | 935. | 859. | 615. | 375. | 113. | 11. | 16. | 105. | 330. | 567. | 877. | 5848. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 20. | 114. | 134. | 39. | 7. | 0. | 0. | 314. |