| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.4 | 48.1 | 56.2 | 65.7 | 74.3 | 84.2 | 87.0 | 83.8 | 77.2 | 68.1 | 55.0 | 44.8 | 65.6 |
| Highest Mean Max. Temperature (F) | 50.8 | 56.7 | 66.8 | 72.2 | 81.5 | 93.4 | 94.1 | 89.0 | 83.1 | 74.4 | 61.0 | 53.7 | 68.1 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1974 | 1990 | 1980 | 1962 | 1983 | 1963 | 1965 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 34.3 | 36.1 | 49.8 | 57.7 | 63.5 | 78.9 | 83.1 | 79.3 | 72.3 | 59.0 | 44.5 | 36.4 | 63.4 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1973 | 1986 | 1979 | 1975 | 1988 | 1974 | 1984 | 1961 | 1967 | 1961 |
| Mean Temperature (F) | 29.9 | 34.3 | 40.7 | 48.7 | 57.3 | 66.9 | 71.0 | 68.7 | 62.1 | 52.0 | 40.5 | 31.7 | 50.3 |
| Highest Mean Temperature (F) | 37.9 | 41.1 | 46.8 | 53.1 | 62.4 | 73.2 | 75.0 | 71.5 | 66.6 | 56.3 | 45.4 | 38.8 | 52.6 |
| Year Highest Occurred | 1969 | 1976 | 1972 | 1981 | 1974 | 1990 | 1980 | 1969 | 1983 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 23.2 | 23.8 | 35.1 | 42.3 | 52.5 | 63.5 | 67.8 | 66.2 | 59.2 | 47.1 | 33.7 | 26.1 | 48.9 |
| Year Lowest Occurred | 1961 | 1964 | 1965 | 1973 | 1986 | 1973 | 1975 | 1967 | 1974 | 1984 | 1961 | 1967 | 1961 |
| Mean Min. Temperature (F) | 17.3 | 20.4 | 25.2 | 31.6 | 40.3 | 49.6 | 55.0 | 53.5 | 47.0 | 35.9 | 26.0 | 18.5 | 35.0 |
| Highest Mean Min. Temperature (F) | 25.2 | 25.4 | 29.8 | 35.2 | 44.4 | 53.0 | 58.6 | 56.6 | 50.1 | 40.4 | 31.4 | 25.5 | 37.1 |
| Year Highest Occurred | 1969 | 1976 | 1967 | 1981 | 1984 | 1990 | 1966 | 1982 | 1983 | 1974 | 1978 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 11.0 | 11.5 | 20.4 | 26.9 | 34.5 | 46.1 | 51.9 | 51.5 | 43.5 | 31.0 | 20.0 | 12.2 | 33.5 |
| Year Lowest Occurred | 1961 | 1964 | 1965 | 1973 | 1975 | 1973 | 1961 | 1979 | 1973 | 1976 | 1979 | 1963 | 1976 |
| Mean Precipitation (in.) | 0.32 | 0.39 | 0.36 | 0.41 | 0.71 | 1.21 | 1.94 | 2.82 | 1.25 | 0.95 | 0.48 | 0.51 | 11.35 |
| Highest Precipitation (in.) | 1.43 | 1.04 | 1.00 | 2.28 | 3.06 | 5.15 | 5.48 | 6.64 | 2.61 | 4.27 | 1.74 | 1.51 | 18.30 |
| Year Highest Occurred | 1987 | 1990 | 1975 | 1985 | 1987 | 1979 | 1969 | 1988 | 1962 | 1985 | 1986 | 1987 | 1985 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.21 | 0.02 | 0.00 | 0.00 | 0.00 | 3.82 |
| Year Lowest Occurred | 1976 | 1962 | 1988 | 1978 | 1974 | 1976 | 1963 | 1962 | 1973 | 1987 | 1989 | 1981 | 1964 |
| Heating Degree Days (F) | 1088. | 860. | 753. | 489. | 247. | 38. | 0. | 13. | 107. | 403. | 735. | 1032. | 5765. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 95. | 190. | 127. | 20. | 0. | 0. | 0. | 441. |