| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.8 | 43.9 | 48.8 | 57.4 | 67.4 | 76.3 | 84.5 | 83.7 | 76.0 | 64.0 | 48.1 | 40.0 | 60.8 |
| Highest Mean Max. Temperature (F) | 45.5 | 53.0 | 56.6 | 66.0 | 73.7 | 82.6 | 90.6 | 89.7 | 85.1 | 74.4 | 56.0 | 45.7 | 63.5 |
| Year Highest Occurred | 1986 | 1963 | 1988 | 1987 | 1966 | 1977 | 1988 | 1967 | 1974 | 1988 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 35.9 | 35.2 | 41.2 | 43.5 | 57.5 | 70.4 | 78.0 | 75.3 | 66.7 | 56.7 | 42.4 | 34.2 | 57.6 |
| Year Lowest Occurred | 1990 | 1962 | 1962 | 1967 | 1977 | 1964 | 1983 | 1989 | 1986 | 1989 | 1973 | 1961 | 1990 |
| Mean Temperature (F) | 30.5 | 33.7 | 37.5 | 43.5 | 51.6 | 59.4 | 65.6 | 64.8 | 58.3 | 49.0 | 38.3 | 31.5 | 47.0 |
| Highest Mean Temperature (F) | 37.4 | 42.4 | 43.3 | 49.6 | 56.4 | 64.9 | 71.6 | 69.3 | 63.6 | 56.1 | 44.3 | 36.6 | 49.6 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1973 | 1977 | 1988 | 1977 | 1974 | 1988 | 1987 | 1981 | 1987 |
| Lowest Mean Temperature (F) | 24.6 | 26.0 | 29.8 | 34.1 | 45.1 | 54.1 | 60.6 | 58.4 | 52.9 | 43.1 | 33.5 | 25.5 | 43.8 |
| Year Lowest Occurred | 1962 | 1990 | 1962 | 1967 | 1977 | 1990 | 1989 | 1989 | 1986 | 1989 | 1961 | 1990 | 1990 |
| Mean Min. Temperature (F) | 21.2 | 23.5 | 26.1 | 29.5 | 35.7 | 42.4 | 46.6 | 45.8 | 40.6 | 34.0 | 28.3 | 23.0 | 33.1 |
| Highest Mean Min. Temperature (F) | 29.2 | 31.8 | 31.8 | 34.4 | 40.8 | 47.1 | 52.6 | 49.6 | 44.5 | 40.5 | 34.6 | 29.7 | 36.2 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1987 | 1977 | 1988 | 1988 | 1975 | 1987 | 1987 | 1981 | 1987 |
| Lowest Mean Min. Temperature (F) | 13.2 | 14.9 | 18.3 | 23.8 | 30.4 | 37.2 | 41.2 | 41.4 | 34.9 | 29.3 | 21.6 | 14.2 | 29.9 |
| Year Lowest Occurred | 1962 | 1990 | 1962 | 1970 | 1962 | 1962 | 1962 | 1989 | 1961 | 1961 | 1961 | 1990 | 1990 |
| Mean Precipitation (in.) | 7.08 | 5.88 | 5.55 | 2.55 | 1.30 | 0.69 | 0.19 | 0.46 | 0.91 | 2.46 | 5.52 | 6.10 | 38.69 |
| Highest Precipitation (in.) | 19.46 | 22.29 | 13.57 | 9.46 | 4.00 | 2.04 | 1.13 | 2.46 | 6.60 | 14.47 | 15.76 | 19.52 | 71.23 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1963 | 1990 | 1967 | 1974 | 1965 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.32 | 0.45 | 1.02 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.72 | 0.00 | 14.41 |
| Year Lowest Occurred | 1984 | 1964 | 1988 | 1973 | 1976 | 1986 | 1990 | 1987 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 1070. | 876. | 853. | 645. | 420. | 190. | 75. | 92. | 225. | 496. | 801. | 1039. | 6782. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 22. | 94. | 85. | 24. | 0. | 0. | 0. | 225. |