| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 51.8 | 54.0 | 54.8 | 56.5 | 60.2 | 63.8 | 66.3 | 67.1 | 66.9 | 63.0 | 56.9 | 52.4 | 59.5 |
| Highest Mean Max. Temperature (F) | 57.8 | 60.7 | 59.3 | 62.1 | 62.9 | 67.8 | 68.4 | 69.9 | 71.9 | 66.9 | 59.1 | 56.7 | 61.0 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1973 | 1968 | 1961 | 1962 | 1979 | 1965 | 1961 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 45.5 | 48.8 | 50.5 | 51.5 | 57.2 | 61.2 | 64.2 | 64.8 | 64.2 | 59.1 | 50.1 | 46.2 | 57.8 |
| Year Lowest Occurred | 1969 | 1989 | 1975 | 1975 | 1966 | 1982 | 1971 | 1986 | 1977 | 1971 | 1985 | 1990 | 1975 |
| Mean Temperature (F) | 45.4 | 47.3 | 48.0 | 49.5 | 53.4 | 57.3 | 59.4 | 60.1 | 58.7 | 54.9 | 50.1 | 46.1 | 52.5 |
| Highest Mean Temperature (F) | 50.1 | 53.4 | 52.2 | 53.6 | 56.3 | 60.6 | 61.9 | 62.9 | 63.4 | 58.8 | 53.6 | 50.2 | 54.3 |
| Year Highest Occurred | 1981 | 1963 | 1983 | 1989 | 1973 | 1968 | 1983 | 1965 | 1979 | 1965 | 1965 | 1973 | 1983 |
| Lowest Mean Temperature (F) | 40.6 | 40.7 | 44.3 | 45.2 | 50.1 | 53.9 | 57.6 | 57.5 | 55.9 | 51.1 | 43.6 | 38.2 | 51.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1966 | 1976 | 1962 | 1988 | 1961 | 1971 | 1985 | 1990 | 1976 |
| Mean Min. Temperature (F) | 38.9 | 40.5 | 41.1 | 42.4 | 46.6 | 50.7 | 52.5 | 53.0 | 50.5 | 46.7 | 43.2 | 39.7 | 45.5 |
| Highest Mean Min. Temperature (F) | 43.8 | 46.8 | 46.7 | 45.6 | 49.6 | 54.5 | 55.8 | 56.7 | 54.9 | 51.8 | 48.2 | 45.2 | 47.9 |
| Year Highest Occurred | 1970 | 1968 | 1983 | 1965 | 1973 | 1969 | 1983 | 1965 | 1979 | 1979 | 1965 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 32.3 | 32.6 | 37.6 | 38.9 | 42.9 | 45.8 | 50.0 | 49.6 | 46.4 | 41.8 | 36.5 | 30.1 | 43.6 |
| Year Lowest Occurred | 1963 | 1989 | 1976 | 1975 | 1966 | 1976 | 1977 | 1988 | 1961 | 1974 | 1978 | 1990 | 1976 |
| Mean Precipitation (in.) | 9.73 | 7.76 | 7.83 | 4.65 | 2.89 | 1.60 | 0.45 | 0.96 | 1.80 | 4.59 | 10.27 | 10.77 | 63.30 |
| Highest Precipitation (in.) | 20.23 | 16.26 | 13.97 | 10.49 | 5.79 | 4.80 | 2.79 | 5.49 | 5.36 | 12.46 | 22.69 | 20.76 | 93.54 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1986 | 1985 | 1983 | 1968 | 1971 | 1990 | 1973 | 1987 | 1983 |
| Lowest Precipitation (in.) | 0.87 | 2.32 | 1.65 | 1.28 | 0.38 | 0.12 | 0.00 | 0.00 | 0.00 | 0.36 | 2.55 | 1.70 | 33.52 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1982 | 1987 | 1973 | 1974 | 1975 | 1987 | 1976 | 1989 | 1976 |
| Heating Degree Days (F) | 608. | 496. | 527. | 465. | 360. | 231. | 174. | 156. | 194. | 313. | 447. | 586. | 4557. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |