| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.0 | 32.4 | 37.2 | 44.0 | 51.8 | 57.9 | 62.4 | 61.6 | 55.3 | 44.3 | 35.5 | 31.3 | 45.3 |
| Highest Mean Max. Temperature (F) | 41.3 | 40.5 | 43.0 | 49.2 | 56.2 | 62.0 | 67.4 | 66.6 | 59.5 | 48.1 | 42.0 | 39.2 | 47.5 |
| Year Highest Occurred | 1977 | 1977 | 1984 | 1990 | 1967 | 1968 | 1972 | 1968 | 1963 | 1986 | 1979 | 1969 | 1963 |
| Lowest Mean Max. Temperature (F) | 16.5 | 23.3 | 27.9 | 38.0 | 45.4 | 52.6 | 59.3 | 56.5 | 51.9 | 39.2 | 28.5 | 19.1 | 41.5 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1972 | 1971 | 1965 | 1978 | 1986 | 1976 | 1982 | 1963 | 1980 | 1971 |
| Mean Temperature (F) | 25.2 | 27.1 | 31.4 | 37.9 | 45.2 | 51.5 | 56.1 | 55.4 | 49.5 | 39.4 | 30.7 | 26.5 | 39.7 |
| Highest Mean Temperature (F) | 37.4 | 36.1 | 37.7 | 42.2 | 48.5 | 54.2 | 59.2 | 59.1 | 53.1 | 43.0 | 37.1 | 35.4 | 42.0 |
| Year Highest Occurred | 1977 | 1977 | 1984 | 1990 | 1981 | 1990 | 1972 | 1968 | 1963 | 1969 | 1979 | 1985 | 1987 |
| Lowest Mean Temperature (F) | 12.4 | 16.0 | 21.9 | 31.3 | 40.0 | 47.4 | 53.4 | 52.7 | 46.9 | 34.8 | 23.7 | 13.9 | 36.2 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1972 | 1971 | 1965 | 1978 | 1986 | 1976 | 1982 | 1977 | 1980 | 1971 |
| Mean Min. Temperature (F) | 20.4 | 21.7 | 25.6 | 31.7 | 38.5 | 45.0 | 49.7 | 49.1 | 43.7 | 34.4 | 25.9 | 21.8 | 34.0 |
| Highest Mean Min. Temperature (F) | 33.5 | 31.6 | 32.3 | 35.2 | 41.9 | 49.0 | 53.2 | 52.5 | 47.0 | 38.9 | 32.6 | 31.6 | 37.1 |
| Year Highest Occurred | 1977 | 1977 | 1984 | 1990 | 1989 | 1990 | 1989 | 1989 | 1965 | 1979 | 1976 | 1985 | 1987 |
| Lowest Mean Min. Temperature (F) | 8.2 | 8.6 | 15.8 | 24.5 | 34.5 | 42.2 | 47.1 | 45.8 | 40.8 | 29.9 | 17.6 | 8.6 | 30.8 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1972 | 1971 | 1971 | 1971 | 1973 | 1973 | 1985 | 1977 | 1980 | 1971 |
| Mean Precipitation (in.) | 6.33 | 5.38 | 3.88 | 3.77 | 4.38 | 2.52 | 2.10 | 5.40 | 10.01 | 10.50 | 6.38 | 7.00 | 67.65 |
| Highest Precipitation (in.) | 25.43 | 13.31 | 12.29 | 9.74 | 15.93 | 8.83 | 6.01 | 14.14 | 26.08 | 24.00 | 25.22 | 19.67 | 96.37 |
| Year Highest Occurred | 1981 | 1980 | 1981 | 1977 | 1985 | 1965 | 1990 | 1966 | 1967 | 1986 | 1976 | 1985 | 1981 |
| Lowest Precipitation (in.) | 0.67 | 0.07 | 0.14 | 0.28 | 0.42 | 0.62 | 0.14 | 0.93 | 3.07 | 2.09 | 0.21 | 0.96 | 36.42 |
| Year Lowest Occurred | 1969 | 1979 | 1989 | 1981 | 1974 | 1966 | 1982 | 1987 | 1986 | 1985 | 1975 | 1972 | 1968 |
| Heating Degree Days (F) | 1234. | 1061. | 1042. | 813. | 614. | 405. | 276. | 298. | 465. | 794. | 1029. | 1194. | 9225. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |