| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.6 | 46.3 | 51.2 | 57.5 | 65.1 | 73.6 | 81.4 | 80.8 | 73.1 | 63.1 | 48.4 | 41.6 | 60.3 |
| Highest Mean Max. Temperature (F) | 46.5 | 52.8 | 58.5 | 67.3 | 70.5 | 80.8 | 88.7 | 88.0 | 79.9 | 70.9 | 54.1 | 50.1 | 62.4 |
| Year Highest Occurred | 1986 | 1977 | 1986 | 1987 | 1987 | 1986 | 1985 | 1986 | 1967 | 1988 | 1976 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 31.8 | 33.6 | 46.4 | 49.1 | 57.6 | 67.9 | 75.0 | 74.0 | 66.2 | 55.5 | 38.2 | 32.5 | 58.2 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1967 | 1977 | 1980 | 1983 | 1976 | 1985 | 1984 | 1985 | 1983 | 1982 |
| Mean Temperature (F) | 31.7 | 35.6 | 38.8 | 43.4 | 50.0 | 57.4 | 63.4 | 62.9 | 55.4 | 47.4 | 37.9 | 32.0 | 46.3 |
| Highest Mean Temperature (F) | 37.8 | 40.6 | 45.2 | 50.8 | 55.0 | 63.0 | 69.0 | 67.7 | 61.0 | 54.0 | 41.8 | 39.2 | 48.1 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1986 | 1963 | 1988 | 1976 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 21.0 | 22.5 | 34.9 | 38.0 | 45.2 | 52.4 | 59.2 | 59.0 | 50.5 | 42.6 | 27.1 | 23.5 | 44.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1976 | 1963 | 1989 | 1985 | 1969 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 21.8 | 24.8 | 26.3 | 29.3 | 34.8 | 41.2 | 45.2 | 44.8 | 37.8 | 31.6 | 27.4 | 22.4 | 32.3 |
| Highest Mean Min. Temperature (F) | 29.0 | 30.1 | 32.2 | 34.2 | 39.5 | 45.1 | 49.6 | 49.4 | 43.8 | 38.0 | 31.7 | 30.0 | 34.6 |
| Year Highest Occurred | 1983 | 1983 | 1983 | 1987 | 1987 | 1986 | 1975 | 1983 | 1963 | 1979 | 1980 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 10.1 | 11.4 | 19.9 | 24.8 | 30.4 | 35.9 | 41.1 | 40.7 | 32.2 | 26.8 | 15.9 | 13.0 | 30.1 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1964 | 1976 | 1962 | 1969 | 1965 | 1971 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.83 | 0.97 | 0.92 | 0.60 | 0.77 | 0.86 | 0.49 | 0.58 | 0.47 | 0.65 | 1.57 | 1.99 | 11.70 |
| Highest Precipitation (in.) | 4.37 | 3.65 | 2.76 | 2.18 | 2.31 | 3.20 | 3.73 | 2.18 | 1.74 | 2.18 | 4.58 | 8.74 | 19.17 |
| Year Highest Occurred | 1970 | 1986 | 1974 | 1978 | 1962 | 1969 | 1987 | 1976 | 1982 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.12 | 0.08 | 0.01 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 7.64 |
| Year Lowest Occurred | 1985 | 1967 | 1965 | 1977 | 1967 | 1973 | 1988 | 1981 | 1974 | 1988 | 1972 | 1976 | 1985 |
| Heating Degree Days (F) | 1032. | 823. | 812. | 648. | 465. | 241. | 101. | 123. | 299. | 546. | 813. | 1023. | 6926. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 13. | 51. | 58. | 11. | 0. | 0. | 0. | 133. |