| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.6 | 45.0 | 49.0 | 55.1 | 62.0 | 68.1 | 73.4 | 74.4 | 68.7 | 59.4 | 46.2 | 39.0 | 56.7 |
| Highest Mean Max. Temperature (F) | 49.9 | 52.9 | 53.8 | 61.7 | 68.0 | 73.1 | 81.7 | 84.8 | 77.4 | 67.0 | 53.7 | 44.7 | 59.4 |
| Year Highest Occurred | 1981 | 1968 | 1986 | 1980 | 1969 | 1982 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 31.7 | 36.6 | 44.2 | 49.6 | 55.0 | 62.0 | 67.9 | 67.5 | 62.8 | 54.0 | 35.8 | 32.5 | 53.7 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1970 | 1962 | 1971 | 1963 | 1976 | 1978 | 1975 | 1985 | 1972 | 1964 |
| Mean Temperature (F) | 33.2 | 37.0 | 39.6 | 44.1 | 50.0 | 55.7 | 59.3 | 59.6 | 54.7 | 47.2 | 38.7 | 33.0 | 46.0 |
| Highest Mean Temperature (F) | 41.2 | 42.6 | 43.7 | 48.1 | 53.2 | 60.1 | 63.7 | 63.6 | 59.6 | 51.1 | 42.6 | 38.6 | 47.8 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1969 | 1969 | 1985 | 1967 | 1963 | 1988 | 1965 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 25.3 | 28.8 | 35.3 | 40.1 | 46.7 | 51.4 | 56.6 | 54.5 | 50.0 | 43.9 | 28.5 | 26.7 | 44.3 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1965 | 1971 | 1986 | 1973 | 1972 | 1984 | 1985 | 1972 | 1985 |
| Mean Min. Temperature (F) | 26.6 | 28.9 | 30.2 | 33.2 | 38.0 | 43.3 | 45.2 | 44.7 | 40.7 | 35.0 | 31.3 | 27.0 | 35.3 |
| Highest Mean Min. Temperature (F) | 32.4 | 33.4 | 33.6 | 37.3 | 39.9 | 47.5 | 48.7 | 47.9 | 46.3 | 39.5 | 35.7 | 32.4 | 37.5 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1990 | 1961 | 1969 | 1961 | 1990 | 1963 | 1988 | 1965 | 1979 | 1963 |
| Lowest Mean Min. Temperature (F) | 18.9 | 20.9 | 26.4 | 29.4 | 35.7 | 39.0 | 42.6 | 39.4 | 36.6 | 31.6 | 21.2 | 20.1 | 32.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1970 | 1976 | 1973 | 1973 | 1972 | 1984 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 9.33 | 6.40 | 5.94 | 4.86 | 3.62 | 2.96 | 1.73 | 2.12 | 3.26 | 5.20 | 8.96 | 8.60 | 62.98 |
| Highest Precipitation (in.) | 17.64 | 14.65 | 12.60 | 9.26 | 10.80 | 7.99 | 8.98 | 4.98 | 6.17 | 12.89 | 22.24 | 13.46 | 108.07 |
| Year Highest Occurred | 1990 | 1961 | 1988 | 1988 | 1984 | 1990 | 1983 | 1990 | 1986 | 1990 | 1990 | 1975 | 1990 |
| Lowest Precipitation (in.) | 1.19 | 1.46 | 1.28 | 2.01 | 0.33 | 0.63 | 0.05 | 0.00 | 0.22 | 0.46 | 1.71 | 1.50 | 40.91 |
| Year Lowest Occurred | 1985 | 1962 | 1965 | 1973 | 1981 | 1965 | 1984 | 1967 | 1975 | 1987 | 1979 | 1985 | 1979 |
| Heating Degree Days (F) | 986. | 784. | 787. | 627. | 465. | 283. | 182. | 180. | 312. | 552. | 789. | 992. | 6939. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 6. | 13. | 0. | 0. | 0. | 0. | 19. |