| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.4 | 48.5 | 50.4 | 57.0 | 65.6 | 75.2 | 80.3 | 78.8 | 73.4 | 65.2 | 54.3 | 48.1 | 62.0 |
| Highest Mean Max. Temperature (F) | 57.9 | 56.2 | 62.5 | 66.0 | 75.1 | 81.2 | 83.4 | 83.5 | 76.8 | 71.9 | 60.4 | 55.9 | 64.9 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1985 | 1989 | 1985 | 1962 | 1965 | 1977 | 1981 | 1981 |
| Lowest Mean Max. Temperature (F) | 41.4 | 42.4 | 42.8 | 45.1 | 55.4 | 69.7 | 76.8 | 74.6 | 66.2 | 57.5 | 48.4 | 40.6 | 60.2 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1967 | 1977 | 1965 | 1961 | 1968 | 1986 | 1972 | 1972 | 1971 | 1964 |
| Mean Temperature (F) | 33.2 | 34.8 | 36.8 | 42.2 | 49.6 | 57.8 | 63.5 | 62.4 | 56.6 | 48.3 | 39.6 | 34.1 | 46.6 |
| Highest Mean Temperature (F) | 41.8 | 40.7 | 45.3 | 49.7 | 56.5 | 62.5 | 67.1 | 66.6 | 60.5 | 53.3 | 44.1 | 40.6 | 48.5 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1981 | 1972 | 1969 | 1974 | 1978 | 1977 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 27.8 | 28.8 | 29.6 | 33.3 | 42.9 | 51.7 | 59.1 | 59.3 | 50.8 | 44.2 | 32.4 | 29.4 | 43.7 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1967 | 1977 | 1965 | 1961 | 1968 | 1965 | 1971 | 1964 | 1990 | 1964 |
| Mean Min. Temperature (F) | 18.9 | 21.1 | 23.2 | 27.5 | 33.5 | 40.3 | 46.7 | 45.9 | 39.7 | 31.4 | 24.8 | 19.9 | 31.1 |
| Highest Mean Min. Temperature (F) | 28.0 | 27.3 | 29.6 | 33.4 | 37.9 | 44.5 | 51.8 | 51.6 | 45.3 | 37.0 | 28.9 | 26.8 | 33.7 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1989 | 1984 | 1978 | 1972 | 1970 | 1974 | 1978 | 1986 | 1977 | 1980 |
| Lowest Mean Min. Temperature (F) | 13.9 | 13.9 | 14.6 | 21.4 | 28.9 | 33.6 | 39.9 | 41.5 | 30.3 | 25.1 | 15.7 | 14.0 | 27.0 |
| Year Lowest Occurred | 1962 | 1966 | 1962 | 1967 | 1961 | 1965 | 1963 | 1985 | 1961 | 1961 | 1964 | 1990 | 1964 |
| Mean Precipitation (in.) | 4.01 | 3.75 | 3.53 | 1.53 | 0.58 | 0.12 | 0.82 | 0.99 | 0.62 | 0.68 | 2.54 | 3.48 | 22.65 |
| Highest Precipitation (in.) | 24.87 | 19.89 | 11.04 | 7.90 | 3.86 | 1.59 | 5.05 | 3.87 | 5.03 | 3.25 | 16.29 | 19.07 | 55.76 |
| Year Highest Occurred | 1969 | 1969 | 1978 | 1965 | 1977 | 1972 | 1984 | 1970 | 1976 | 1987 | 1965 | 1966 | 1969 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 9.10 |
| Year Lowest Occurred | 1976 | 1967 | 1972 | 1985 | 1986 | 1989 | 1989 | 1985 | 1990 | 1990 | 1980 | 1981 | 1989 |
| Heating Degree Days (F) | 986. | 846. | 874. | 684. | 477. | 231. | 94. | 113. | 259. | 518. | 762. | 958. | 6802. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 15. | 48. | 32. | 7. | 0. | 0. | 0. | 102. |