| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.3 | 50.8 | 59.2 | 69.7 | 78.1 | 88.4 | 93.0 | 90.4 | 81.8 | 72.2 | 57.8 | 47.4 | 69.6 |
| Highest Mean Max. Temperature (F) | 60.9 | 60.2 | 69.1 | 76.9 | 85.0 | 94.5 | 102.5 | 99.7 | 87.3 | 80.2 | 64.2 | 54.2 | 73.3 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1974 | 1990 | 1980 | 1983 | 1983 | 1963 | 1963 | 1980 | 1986 |
| Lowest Mean Max. Temperature (F) | 30.6 | 33.3 | 43.6 | 60.7 | 72.3 | 79.9 | 87.8 | 83.6 | 74.8 | 59.6 | 45.8 | 32.4 | 66.8 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1973 | 1978 | 1989 | 1972 | 1974 | 1974 | 1969 | 1972 | 1983 | 1978 |
| Mean Temperature (F) | 31.6 | 35.8 | 43.3 | 53.8 | 63.0 | 73.4 | 78.4 | 76.2 | 67.3 | 56.2 | 43.0 | 33.4 | 54.6 |
| Highest Mean Temperature (F) | 41.9 | 43.3 | 51.5 | 60.6 | 67.9 | 78.3 | 84.8 | 81.8 | 71.6 | 64.1 | 48.5 | 39.3 | 57.0 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1962 | 1990 | 1980 | 1983 | 1990 | 1963 | 1990 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 19.4 | 22.4 | 31.8 | 47.2 | 58.6 | 67.7 | 74.6 | 72.0 | 61.9 | 49.1 | 34.6 | 21.7 | 52.6 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1973 | 1979 | 1989 | 1972 | 1974 | 1974 | 1969 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 16.9 | 20.7 | 27.5 | 37.9 | 47.8 | 58.4 | 63.7 | 61.9 | 52.8 | 40.1 | 28.1 | 19.3 | 39.6 |
| Highest Mean Min. Temperature (F) | 23.5 | 29.1 | 33.8 | 44.3 | 53.1 | 63.5 | 67.1 | 64.6 | 58.4 | 48.0 | 34.3 | 24.7 | 41.9 |
| Year Highest Occurred | 1990 | 1987 | 1986 | 1981 | 1977 | 1977 | 1966 | 1969 | 1990 | 1963 | 1990 | 1965 | 1990 |
| Lowest Mean Min. Temperature (F) | 6.5 | 11.5 | 19.1 | 33.4 | 42.8 | 54.5 | 61.3 | 57.5 | 49.0 | 35.5 | 23.3 | 10.9 | 37.2 |
| Year Lowest Occurred | 1963 | 1978 | 1965 | 1983 | 1983 | 1983 | 1972 | 1979 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.44 | 0.54 | 1.15 | 1.54 | 2.63 | 2.58 | 2.77 | 2.29 | 1.94 | 0.74 | 0.77 | 0.39 | 17.78 |
| Highest Precipitation (in.) | 1.94 | 1.81 | 3.98 | 5.45 | 8.36 | 7.11 | 6.23 | 7.56 | 5.32 | 3.71 | 3.72 | 1.35 | 29.17 |
| Year Highest Occurred | 1980 | 1983 | 1973 | 1980 | 1979 | 1989 | 1971 | 1972 | 1969 | 1969 | 1972 | 1973 | 1969 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.04 | 0.24 | 0.22 | 0.40 | 0.39 | 0.00 | 0.00 | 0.00 | 0.00 | 9.26 |
| Year Lowest Occurred | 1986 | 1974 | 1966 | 1965 | 1962 | 1970 | 1983 | 1984 | 1980 | 1987 | 1989 | 1988 | 1963 |
| Heating Degree Days (F) | 1035. | 818. | 673. | 344. | 125. | 7. | 0. | 0. | 40. | 287. | 660. | 980. | 4969. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 8. | 63. | 259. | 415. | 347. | 109. | 14. | 0. | 0. | 1215. |