| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.3 | 50.3 | 53.1 | 56.5 | 61.0 | 64.8 | 68.4 | 69.5 | 68.6 | 61.6 | 52.7 | 47.2 | 58.4 |
| Highest Mean Max. Temperature (F) | 53.3 | 56.7 | 59.1 | 60.5 | 65.2 | 69.1 | 71.0 | 74.6 | 74.1 | 66.8 | 57.3 | 52.5 | 60.0 |
| Year Highest Occurred | 1981 | 1963 | 1965 | 1989 | 1969 | 1970 | 1961 | 1967 | 1974 | 1987 | 1976 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 39.5 | 43.3 | 47.2 | 51.6 | 57.1 | 59.5 | 64.4 | 64.7 | 65.4 | 57.4 | 44.4 | 41.6 | 55.5 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1977 | 1971 | 1971 | 1980 | 1972 | 1975 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 42.3 | 44.3 | 46.2 | 49.1 | 53.5 | 57.4 | 60.5 | 61.6 | 60.1 | 54.0 | 47.1 | 42.3 | 51.5 |
| Highest Mean Temperature (F) | 47.2 | 50.1 | 49.7 | 52.4 | 56.1 | 60.9 | 62.6 | 64.6 | 63.9 | 57.7 | 51.0 | 47.9 | 52.7 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1969 | 1978 | 1961 | 1967 | 1974 | 1976 | 1976 | 1976 | 1967 |
| Lowest Mean Temperature (F) | 35.3 | 37.1 | 40.5 | 44.5 | 50.8 | 52.1 | 56.0 | 58.0 | 56.0 | 50.8 | 39.1 | 36.6 | 48.5 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1971 | 1971 | 1971 | 1973 | 1972 | 1972 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 37.2 | 38.3 | 39.2 | 41.7 | 45.9 | 49.9 | 52.5 | 53.6 | 51.5 | 46.4 | 41.3 | 37.4 | 44.6 |
| Highest Mean Min. Temperature (F) | 42.2 | 43.4 | 43.6 | 45.5 | 48.4 | 54.2 | 55.0 | 55.7 | 55.5 | 50.7 | 45.7 | 43.3 | 46.0 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1974 | 1983 | 1978 | 1983 | 1979 | 1963 | 1988 | 1965 | 1976 | 1986 |
| Lowest Mean Min. Temperature (F) | 30.7 | 30.8 | 33.8 | 37.3 | 42.8 | 44.6 | 47.5 | 50.0 | 46.5 | 41.4 | 33.7 | 31.5 | 41.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1971 | 1971 | 1971 | 1969 | 1972 | 1972 | 1985 | 1978 | 1971 |
| Mean Precipitation (in.) | 9.72 | 8.24 | 7.29 | 4.52 | 3.19 | 2.10 | 1.27 | 1.49 | 3.25 | 6.20 | 10.19 | 10.44 | 67.90 |
| Highest Precipitation (in.) | 14.83 | 19.04 | 12.71 | 9.87 | 6.52 | 4.86 | 4.43 | 4.84 | 10.76 | 14.16 | 18.03 | 16.12 | 85.19 |
| Year Highest Occurred | 1965 | 1961 | 1971 | 1981 | 1977 | 1981 | 1983 | 1977 | 1978 | 1975 | 1990 | 1966 | 1990 |
| Lowest Precipitation (in.) | 0.41 | 3.14 | 1.39 | 1.77 | 0.51 | 0.53 | 0.08 | 0.03 | 0.01 | 0.06 | 2.51 | 2.11 | 40.79 |
| Year Lowest Occurred | 1985 | 1962 | 1965 | 1977 | 1982 | 1987 | 1984 | 1986 | 1990 | 1987 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 704. | 580. | 583. | 477. | 357. | 231. | 144. | 117. | 163. | 341. | 537. | 704. | 4938. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 12. | 16. | 0. | 0. | 0. | 28. |