| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 49.6 | 53.1 | 54.6 | 57.0 | 61.9 | 66.1 | 69.8 | 70.6 | 69.7 | 63.7 | 54.9 | 50.0 | 60.1 |
| Highest Mean Max. Temperature (F) | 55.6 | 58.7 | 58.8 | 63.3 | 66.7 | 71.5 | 74.0 | 74.9 | 74.1 | 70.1 | 60.7 | 54.5 | 62.6 |
| Year Highest Occurred | 1981 | 1963 | 1984 | 1983 | 1983 | 1985 | 1985 | 1983 | 1967 | 1987 | 1976 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 42.3 | 45.9 | 50.3 | 53.5 | 57.3 | 61.9 | 65.9 | 67.6 | 66.1 | 58.6 | 46.6 | 44.0 | 57.5 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1971 | 1971 | 1975 | 1986 | 1975 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 42.9 | 45.6 | 46.5 | 48.4 | 52.6 | 56.8 | 59.6 | 60.4 | 59.1 | 54.1 | 47.7 | 43.5 | 51.4 |
| Highest Mean Temperature (F) | 48.3 | 51.7 | 50.6 | 52.2 | 56.3 | 60.0 | 61.9 | 62.8 | 62.3 | 57.2 | 51.4 | 47.4 | 53.4 |
| Year Highest Occurred | 1981 | 1963 | 1984 | 1989 | 1983 | 1969 | 1961 | 1983 | 1979 | 1965 | 1976 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 36.6 | 39.1 | 43.3 | 44.6 | 49.9 | 54.2 | 57.7 | 57.6 | 56.3 | 51.2 | 38.7 | 37.4 | 49.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1971 | 1973 | 1961 | 1984 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 36.2 | 38.0 | 38.3 | 39.6 | 43.2 | 47.3 | 49.4 | 50.1 | 48.3 | 44.3 | 40.5 | 36.8 | 42.7 |
| Highest Mean Min. Temperature (F) | 41.4 | 44.7 | 42.9 | 44.1 | 45.8 | 53.1 | 52.0 | 53.6 | 51.5 | 48.9 | 44.5 | 41.2 | 44.1 |
| Year Highest Occurred | 1961 | 1963 | 1983 | 1990 | 1983 | 1969 | 1983 | 1977 | 1979 | 1988 | 1965 | 1979 | 1983 |
| Lowest Mean Min. Temperature (F) | 29.7 | 31.9 | 32.5 | 35.2 | 40.1 | 43.4 | 45.3 | 46.4 | 44.4 | 40.4 | 30.7 | 30.7 | 38.8 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1967 | 1966 | 1987 | 1984 | 1988 | 1985 | 1986 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 12.84 | 9.38 | 9.77 | 5.82 | 4.28 | 3.24 | 1.51 | 1.64 | 3.62 | 6.59 | 12.24 | 13.11 | 84.04 |
| Highest Precipitation (in.) | 23.97 | 18.81 | 15.79 | 9.84 | 8.23 | 8.17 | 6.50 | 7.01 | 10.28 | 13.50 | 21.76 | 21.47 | 113.53 |
| Year Highest Occurred | 1971 | 1961 | 1989 | 1972 | 1984 | 1969 | 1983 | 1968 | 1971 | 1975 | 1962 | 1971 | 1971 |
| Lowest Precipitation (in.) | 0.92 | 2.54 | 1.79 | 2.12 | 1.43 | 0.81 | 0.07 | 0.03 | 0.04 | 0.30 | 2.49 | 3.62 | 62.15 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1973 | 1982 | 1965 | 1967 | 1970 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 685. | 543. | 574. | 498. | 384. | 246. | 167. | 145. | 181. | 338. | 519. | 667. | 4947. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |