| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.5 | 43.7 | 48.5 | 56.5 | 65.8 | 74.6 | 83.8 | 82.5 | 74.4 | 63.7 | 46.5 | 38.6 | 59.8 |
| Highest Mean Max. Temperature (F) | 45.0 | 51.7 | 56.4 | 66.6 | 72.1 | 81.5 | 89.5 | 90.0 | 82.8 | 73.3 | 57.5 | 45.2 | 61.5 |
| Year Highest Occurred | 1963 | 1977 | 1978 | 1977 | 1973 | 1974 | 1985 | 1967 | 1974 | 1988 | 1976 | 1962 | 1967 |
| Lowest Mean Max. Temperature (F) | 30.3 | 32.7 | 42.4 | 45.2 | 57.0 | 66.9 | 77.4 | 75.1 | 64.0 | 55.2 | 37.3 | 31.1 | 56.9 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1969 | 1985 | 1990 | 1982 |
| Mean Temperature (F) | 26.3 | 31.1 | 34.8 | 39.7 | 46.9 | 54.6 | 60.2 | 59.3 | 51.5 | 43.3 | 32.9 | 26.1 | 42.2 |
| Highest Mean Temperature (F) | 33.2 | 38.1 | 41.1 | 45.9 | 50.4 | 59.3 | 64.6 | 63.8 | 55.7 | 47.8 | 37.7 | 32.2 | 43.5 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1987 | 1961 | 1985 | 1961 | 1979 | 1988 | 1962 | 1975 | 1986 |
| Lowest Mean Temperature (F) | 18.6 | 18.1 | 30.0 | 32.9 | 42.4 | 50.6 | 55.0 | 55.1 | 46.3 | 37.6 | 23.6 | 14.9 | 40.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1984 | 1986 | 1980 | 1986 | 1969 | 1985 | 1990 | 1989 |
| Mean Min. Temperature (F) | 14.1 | 18.5 | 21.1 | 22.9 | 27.9 | 34.5 | 36.7 | 36.1 | 28.5 | 23.0 | 19.2 | 13.6 | 24.7 |
| Highest Mean Min. Temperature (F) | 22.9 | 25.8 | 27.1 | 29.1 | 31.5 | 38.8 | 43.6 | 41.1 | 34.3 | 31.7 | 27.3 | 23.5 | 27.2 |
| Year Highest Occurred | 1978 | 1980 | 1983 | 1963 | 1971 | 1969 | 1975 | 1977 | 1963 | 1979 | 1973 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 4.0 | 3.5 | 15.0 | 17.2 | 23.6 | 30.7 | 32.4 | 29.6 | 20.8 | 17.4 | 8.6 | -1.4 | 21.8 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1970 | 1990 | 1976 | 1986 | 1970 | 1965 | 1970 | 1978 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.69 | 1.12 | 1.24 | 0.61 | 0.78 | 0.93 | 0.48 | 0.65 | 0.41 | 0.79 | 1.56 | 1.81 | 12.07 |
| Highest Precipitation (in.) | 3.78 | 6.22 | 4.26 | 2.31 | 2.33 | 3.03 | 3.48 | 2.75 | 1.75 | 3.59 | 4.38 | 10.14 | 18.79 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1988 | 1977 | 1969 | 1987 | 1976 | 1985 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 8.19 |
| Year Lowest Occurred | 1985 | 1965 | 1965 | 1977 | 1975 | 1979 | 1989 | 1980 | 1987 | 1988 | 1976 | 1988 | 1976 |
| Heating Degree Days (F) | 1200. | 949. | 936. | 759. | 561. | 316. | 173. | 190. | 410. | 673. | 963. | 1206. | 8336. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 24. | 13. | 0. | 0. | 0. | 0. | 37. |