| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.4 | 48.3 | 51.3 | 55.3 | 60.4 | 65.0 | 68.6 | 69.1 | 66.2 | 58.1 | 50.2 | 45.7 | 57.0 |
| Highest Mean Max. Temperature (F) | 50.2 | 52.5 | 55.0 | 58.9 | 65.0 | 70.2 | 72.1 | 74.4 | 71.9 | 60.4 | 53.4 | 50.1 | 58.3 |
| Year Highest Occurred | 1981 | 1963 | 1983 | 1980 | 1969 | 1978 | 1972 | 1967 | 1974 | 1965 | 1962 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 37.5 | 40.1 | 47.7 | 50.7 | 56.7 | 61.5 | 60.2 | 65.2 | 61.2 | 55.0 | 39.8 | 40.6 | 53.9 |
| Year Lowest Occurred | 1969 | 1989 | 1989 | 1986 | 1986 | 1971 | 1986 | 1975 | 1986 | 1985 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 39.6 | 41.8 | 44.0 | 47.4 | 52.2 | 56.6 | 59.8 | 60.2 | 57.2 | 50.4 | 43.9 | 40.1 | 49.4 |
| Highest Mean Temperature (F) | 44.8 | 45.6 | 47.6 | 50.2 | 56.0 | 60.7 | 62.6 | 63.3 | 61.0 | 52.9 | 46.9 | 44.3 | 51.0 |
| Year Highest Occurred | 1981 | 1963 | 1983 | 1980 | 1983 | 1978 | 1990 | 1981 | 1974 | 1963 | 1983 | 1979 | 1983 |
| Lowest Mean Temperature (F) | 31.9 | 33.9 | 40.7 | 43.4 | 49.0 | 53.0 | 53.6 | 56.3 | 53.0 | 47.8 | 33.0 | 34.7 | 46.3 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1986 | 1986 | 1987 | 1986 | 1987 | 1986 | 1985 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 33.8 | 35.3 | 36.7 | 39.4 | 44.0 | 48.3 | 50.8 | 51.2 | 48.2 | 42.6 | 37.6 | 34.4 | 41.9 |
| Highest Mean Min. Temperature (F) | 39.3 | 38.9 | 40.7 | 43.1 | 47.4 | 52.0 | 53.6 | 54.2 | 51.8 | 46.0 | 41.4 | 39.4 | 43.7 |
| Year Highest Occurred | 1981 | 1983 | 1984 | 1990 | 1983 | 1969 | 1990 | 1990 | 1979 | 1988 | 1983 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | 26.3 | 27.6 | 32.4 | 36.1 | 41.2 | 43.7 | 46.9 | 47.0 | 43.7 | 38.2 | 26.2 | 28.6 | 38.6 |
| Year Lowest Occurred | 1969 | 1989 | 1988 | 1986 | 1986 | 1987 | 1986 | 1987 | 1985 | 1987 | 1985 | 1964 | 1985 |
| Mean Precipitation (in.) | 4.03 | 2.56 | 2.01 | 1.34 | 0.99 | 0.78 | 0.53 | 0.79 | 1.24 | 2.32 | 4.04 | 4.35 | 24.98 |
| Highest Precipitation (in.) | 7.27 | 4.32 | 4.64 | 2.70 | 1.87 | 2.26 | 1.56 | 3.67 | 3.08 | 7.28 | 9.64 | 8.74 | 35.48 |
| Year Highest Occurred | 1967 | 1979 | 1971 | 1970 | 1981 | 1980 | 1963 | 1975 | 1972 | 1985 | 1990 | 1979 | 1990 |
| Lowest Precipitation (in.) | 0.40 | 0.83 | 0.54 | 0.31 | 0.10 | 0.09 | 0.00 | 0.00 | 0.04 | 0.00 | 0.52 | 0.17 | 17.91 |
| Year Lowest Occurred | 1981 | 1973 | 1979 | 1973 | 1972 | 1970 | 1984 | 1986 | 1975 | 1987 | 1979 | 1985 | 1985 |
| Heating Degree Days (F) | 787. | 650. | 651. | 528. | 397. | 255. | 171. | 158. | 240. | 453. | 633. | 772. | 5695. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 10. | 10. | 6. | 0. | 0. | 0. | 26. |