| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.8 | 50.5 | 54.8 | 59.6 | 66.0 | 72.8 | 79.8 | 81.0 | 75.3 | 64.6 | 52.5 | 45.6 | 62.4 |
| Highest Mean Max. Temperature (F) | 50.8 | 57.3 | 60.0 | 65.9 | 69.8 | 78.8 | 86.4 | 90.1 | 84.3 | 74.2 | 56.4 | 49.7 | 64.7 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1989 | 1987 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 38.3 | 42.2 | 49.3 | 54.1 | 58.8 | 66.3 | 73.3 | 75.6 | 68.3 | 58.8 | 44.7 | 40.0 | 60.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1962 | 1971 | 1983 | 1968 | 1978 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 38.6 | 41.9 | 44.7 | 48.2 | 53.4 | 59.5 | 64.1 | 64.9 | 60.5 | 52.4 | 44.1 | 38.8 | 50.9 |
| Highest Mean Temperature (F) | 42.6 | 47.7 | 49.3 | 53.6 | 56.6 | 64.4 | 68.1 | 69.9 | 66.0 | 58.0 | 46.8 | 43.2 | 52.6 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 30.5 | 34.2 | 40.5 | 44.0 | 49.9 | 54.9 | 61.1 | 61.5 | 57.0 | 49.2 | 36.7 | 32.6 | 49.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1973 | 1970 | 1984 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 31.3 | 33.3 | 34.6 | 36.8 | 40.7 | 46.1 | 48.5 | 48.8 | 45.7 | 40.1 | 35.8 | 32.0 | 39.5 |
| Highest Mean Min. Temperature (F) | 36.0 | 38.4 | 39.1 | 41.2 | 43.6 | 52.0 | 51.5 | 52.7 | 49.7 | 45.2 | 39.9 | 37.4 | 40.9 |
| Year Highest Occurred | 1967 | 1983 | 1983 | 1989 | 1969 | 1969 | 1990 | 1961 | 1990 | 1988 | 1983 | 1966 | 1983 |
| Lowest Mean Min. Temperature (F) | 22.7 | 26.1 | 31.7 | 32.6 | 37.5 | 42.6 | 45.7 | 44.1 | 40.9 | 37.1 | 28.7 | 25.2 | 37.2 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1965 | 1976 | 1962 | 1973 | 1961 | 1971 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 11.47 | 8.98 | 8.10 | 3.71 | 2.40 | 1.34 | 0.50 | 0.85 | 1.71 | 4.59 | 11.08 | 13.24 | 67.97 |
| Highest Precipitation (in.) | 23.22 | 20.49 | 16.80 | 8.52 | 5.26 | 4.21 | 2.23 | 4.22 | 4.48 | 10.38 | 27.14 | 27.05 | 94.64 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1982 | 1984 | 1981 | 1974 | 1968 | 1971 | 1967 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.34 | 1.81 | 0.91 | 0.55 | 0.33 | 0.15 | 0.00 | 0.00 | 0.00 | 0.25 | 2.34 | 2.14 | 37.64 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1982 | 1987 | 1973 | 1988 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 818. | 647. | 629. | 504. | 360. | 181. | 69. | 79. | 157. | 391. | 627. | 812. | 5274. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 16. | 41. | 75. | 22. | 0. | 0. | 0. | 154. |