| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.5 | 47.1 | 54.2 | 63.3 | 73.1 | 82.7 | 92.3 | 89.7 | 79.8 | 67.3 | 50.6 | 40.4 | 65.0 |
| Highest Mean Max. Temperature (F) | 47.5 | 55.3 | 60.7 | 72.7 | 81.2 | 89.4 | 96.5 | 94.9 | 86.4 | 76.6 | 57.9 | 46.9 | 67.3 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1966 | 1974 | 1968 | 1967 | 1974 | 1988 | 1976 | 1981 | 1988 |
| Lowest Mean Max. Temperature (F) | 30.8 | 38.6 | 49.1 | 52.0 | 63.5 | 75.4 | 86.4 | 81.0 | 70.0 | 58.8 | 41.6 | 32.9 | 62.5 |
| Year Lowest Occurred | 1984 | 1962 | 1975 | 1967 | 1977 | 1964 | 1983 | 1976 | 1986 | 1969 | 1985 | 1972 | 1984 |
| Mean Temperature (F) | 29.6 | 36.4 | 41.9 | 48.8 | 57.6 | 66.2 | 74.1 | 72.2 | 63.0 | 52.4 | 39.6 | 30.7 | 51.0 |
| Highest Mean Temperature (F) | 37.1 | 44.5 | 48.3 | 56.4 | 62.8 | 72.2 | 78.2 | 76.8 | 68.1 | 60.6 | 44.1 | 38.4 | 52.8 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1966 | 1961 | 1968 | 1967 | 1990 | 1988 | 1976 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 20.5 | 27.6 | 37.0 | 40.5 | 51.3 | 60.7 | 68.2 | 65.9 | 54.6 | 45.5 | 29.5 | 21.7 | 48.1 |
| Year Lowest Occurred | 1984 | 1989 | 1985 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 19.7 | 25.8 | 29.6 | 34.2 | 42.0 | 49.6 | 55.8 | 54.7 | 46.2 | 37.4 | 28.6 | 21.0 | 37.1 |
| Highest Mean Min. Temperature (F) | 29.1 | 33.6 | 37.0 | 41.9 | 46.7 | 55.5 | 59.8 | 59.7 | 51.4 | 44.5 | 34.1 | 29.9 | 38.7 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1963 | 1961 | 1968 | 1961 | 1963 | 1988 | 1970 | 1981 | 1973 |
| Lowest Mean Min. Temperature (F) | 10.1 | 16.4 | 24.1 | 28.4 | 38.7 | 43.5 | 50.0 | 48.8 | 39.1 | 32.0 | 17.3 | 10.2 | 32.9 |
| Year Lowest Occurred | 1984 | 1989 | 1985 | 1975 | 1965 | 1980 | 1983 | 1985 | 1985 | 1984 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.02 | 0.83 | 0.80 | 0.69 | 0.69 | 0.71 | 0.30 | 0.50 | 0.46 | 0.46 | 1.05 | 1.00 | 8.51 |
| Highest Precipitation (in.) | 3.09 | 2.80 | 2.64 | 2.10 | 2.20 | 1.94 | 1.18 | 2.72 | 1.49 | 1.65 | 2.30 | 4.13 | 17.74 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1978 | 1977 | 1964 | 1974 | 1979 | 1983 | 1974 | 1981 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.17 | 0.00 | 0.01 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 4.64 |
| Year Lowest Occurred | 1966 | 1964 | 1968 | 1985 | 1982 | 1985 | 1989 | 1978 | 1987 | 1990 | 1975 | 1976 | 1966 |
| Heating Degree Days (F) | 1097. | 801. | 716. | 493. | 248. | 81. | 5. | 16. | 146. | 401. | 762. | 1063. | 5829. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 18. | 117. | 287. | 240. | 86. | 10. | 0. | 0. | 765. |