| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.4 | 55.1 | 55.6 | 57.1 | 60.4 | 63.7 | 66.1 | 67.0 | 67.1 | 63.1 | 57.4 | 53.5 | 60.0 |
| Highest Mean Max. Temperature (F) | 60.5 | 60.4 | 60.1 | 62.5 | 63.5 | 65.9 | 68.5 | 69.0 | 71.3 | 66.1 | 60.1 | 58.5 | 61.6 |
| Year Highest Occurred | 1981 | 1970 | 1986 | 1989 | 1969 | 1973 | 1990 | 1983 | 1979 | 1980 | 1980 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 47.6 | 49.3 | 52.3 | 53.9 | 57.6 | 59.4 | 60.8 | 63.5 | 62.8 | 59.9 | 51.3 | 48.7 | 58.1 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1975 | 1965 | 1962 | 1962 | 1961 | 1961 | 1961 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 45.8 | 47.3 | 47.7 | 48.9 | 52.1 | 55.9 | 58.2 | 58.7 | 57.5 | 53.8 | 49.6 | 46.1 | 51.8 |
| Highest Mean Temperature (F) | 50.7 | 53.3 | 51.9 | 52.9 | 55.3 | 58.2 | 60.3 | 60.6 | 62.2 | 56.4 | 52.6 | 49.9 | 53.4 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1987 | 1978 | 1990 | 1983 | 1979 | 1979 | 1965 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 42.0 | 41.2 | 44.4 | 45.3 | 49.5 | 52.6 | 55.5 | 56.8 | 55.0 | 50.9 | 43.9 | 40.1 | 50.3 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1975 | 1965 | 1976 | 1962 | 1988 | 1970 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 38.2 | 39.4 | 39.7 | 40.7 | 43.9 | 48.1 | 50.4 | 50.4 | 47.7 | 44.3 | 41.8 | 38.7 | 43.6 |
| Highest Mean Min. Temperature (F) | 43.0 | 46.2 | 44.1 | 44.4 | 47.9 | 52.1 | 52.6 | 53.3 | 53.1 | 49.0 | 45.8 | 43.5 | 45.6 |
| Year Highest Occurred | 1978 | 1963 | 1983 | 1990 | 1987 | 1969 | 1979 | 1977 | 1979 | 1988 | 1965 | 1981 | 1983 |
| Lowest Mean Min. Temperature (F) | 34.9 | 32.8 | 35.7 | 36.6 | 40.4 | 44.0 | 47.7 | 46.7 | 43.2 | 38.2 | 35.8 | 31.5 | 41.6 |
| Year Lowest Occurred | 1974 | 1964 | 1965 | 1975 | 1964 | 1976 | 1977 | 1969 | 1972 | 1974 | 1978 | 1990 | 1974 |
| Mean Precipitation (in.) | 9.30 | 7.20 | 7.47 | 4.36 | 2.76 | 1.50 | 0.40 | 0.97 | 1.69 | 4.11 | 9.30 | 9.83 | 58.89 |
| Highest Precipitation (in.) | 20.03 | 15.96 | 12.48 | 11.35 | 7.15 | 3.92 | 2.17 | 4.39 | 5.45 | 8.59 | 23.35 | 20.96 | 76.57 |
| Year Highest Occurred | 1970 | 1961 | 1961 | 1978 | 1963 | 1984 | 1983 | 1968 | 1986 | 1962 | 1973 | 1981 | 1983 |
| Lowest Precipitation (in.) | 1.00 | 1.95 | 1.57 | 1.18 | 0.34 | 0.30 | 0.00 | 0.00 | 0.00 | 0.29 | 2.54 | 1.63 | 32.22 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1987 | 1982 | 1987 | 1970 | 1970 | 1975 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 595. | 496. | 536. | 483. | 400. | 273. | 211. | 195. | 227. | 347. | 462. | 586. | 4811. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |