| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.8 | 41.2 | 50.0 | 58.8 | 67.2 | 75.8 | 84.8 | 84.3 | 74.8 | 62.5 | 45.7 | 35.4 | 59.5 |
| Highest Mean Max. Temperature (F) | 40.9 | 50.2 | 57.7 | 67.8 | 73.3 | 84.1 | 92.0 | 91.2 | 83.4 | 72.3 | 52.7 | 41.6 | 61.6 |
| Year Highest Occurred | 1967 | 1963 | 1978 | 1977 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1976 | 1989 | 1987 |
| Lowest Mean Max. Temperature (F) | 20.3 | 25.9 | 44.0 | 50.8 | 62.1 | 70.3 | 79.5 | 76.3 | 65.8 | 56.2 | 32.8 | 25.9 | 55.9 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1970 | 1977 | 1980 | 1986 | 1968 | 1986 | 1984 | 1985 | 1990 | 1984 |
| Mean Temperature (F) | 25.4 | 31.9 | 38.5 | 45.0 | 52.7 | 60.5 | 66.7 | 66.0 | 56.9 | 46.6 | 35.5 | 26.6 | 46.0 |
| Highest Mean Temperature (F) | 33.7 | 39.9 | 45.2 | 50.1 | 56.7 | 66.0 | 72.3 | 71.6 | 62.7 | 52.8 | 39.8 | 33.8 | 47.8 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1972 | 1961 | 1985 | 1961 | 1967 | 1988 | 1965 | 1973 | 1973 |
| Lowest Mean Temperature (F) | 10.2 | 14.7 | 34.0 | 39.2 | 49.3 | 57.0 | 61.9 | 61.5 | 51.3 | 42.9 | 23.6 | 15.1 | 42.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1970 | 1977 | 1980 | 1986 | 1968 | 1971 | 1970 | 1985 | 1978 | 1985 |
| Mean Min. Temperature (F) | 17.0 | 22.5 | 27.0 | 31.2 | 38.1 | 45.1 | 48.5 | 47.6 | 39.0 | 30.6 | 25.3 | 17.9 | 32.5 |
| Highest Mean Min. Temperature (F) | 27.7 | 30.6 | 33.3 | 35.4 | 40.9 | 49.0 | 54.6 | 52.3 | 43.9 | 34.4 | 30.1 | 26.8 | 34.3 |
| Year Highest Occurred | 1981 | 1983 | 1983 | 1965 | 1986 | 1970 | 1975 | 1961 | 1963 | 1979 | 1983 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 0.1 | 3.4 | 23.5 | 26.9 | 35.7 | 40.9 | 44.2 | 43.0 | 33.9 | 25.8 | 14.3 | 3.5 | 29.0 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1968 | 1989 | 1976 | 1986 | 1987 | 1965 | 1987 | 1985 | 1978 | 1989 |
| Mean Precipitation (in.) | 1.03 | 0.62 | 0.84 | 0.82 | 1.26 | 1.38 | 0.58 | 0.94 | 0.74 | 0.63 | 0.96 | 1.07 | 10.87 |
| Highest Precipitation (in.) | 2.61 | 1.66 | 1.81 | 3.58 | 2.26 | 5.06 | 2.33 | 3.52 | 2.72 | 1.70 | 2.15 | 2.83 | 15.76 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1981 | 1964 | 1982 | 1984 | 1980 | 1982 | 1968 | 1964 | 1978 |
| Lowest Precipitation (in.) | 0.21 | 0.17 | 0.13 | 0.03 | 0.18 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.23 | 0.05 | 8.05 |
| Year Lowest Occurred | 1961 | 1973 | 1969 | 1977 | 1965 | 1962 | 1979 | 1970 | 1987 | 1987 | 1976 | 1976 | 1974 |
| Heating Degree Days (F) | 1228. | 927. | 822. | 600. | 381. | 159. | 48. | 80. | 265. | 570. | 885. | 1190. | 7155. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 24. | 101. | 111. | 22. | 0. | 0. | 0. | 258. |