| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.1 | 37.9 | 51.8 | 64.6 | 75.8 | 87.2 | 94.6 | 91.9 | 81.2 | 67.1 | 48.4 | 32.6 | 63.5 |
| Highest Mean Max. Temperature (F) | 46.7 | 50.7 | 64.5 | 72.4 | 82.9 | 95.3 | 99.3 | 95.6 | 88.1 | 75.5 | 55.0 | 47.7 | 68.3 |
| Year Highest Occurred | 1981 | 1981 | 1972 | 1981 | 1969 | 1977 | 1989 | 1969 | 1979 | 1988 | 1989 | 1980 | 1977 |
| Lowest Mean Max. Temperature (F) | 14.1 | 22.6 | 42.6 | 57.1 | 69.6 | 80.0 | 90.7 | 85.2 | 71.9 | 55.8 | 37.8 | 17.0 | 58.6 |
| Year Lowest Occurred | 1984 | 1985 | 1965 | 1983 | 1983 | 1965 | 1987 | 1968 | 1965 | 1969 | 1971 | 1978 | 1984 |
| Mean Temperature (F) | 15.9 | 24.1 | 37.9 | 48.7 | 58.5 | 67.8 | 75.0 | 72.3 | 62.2 | 49.6 | 35.0 | 20.6 | 47.3 |
| Highest Mean Temperature (F) | 29.8 | 35.3 | 46.0 | 54.7 | 63.7 | 73.8 | 78.2 | 75.5 | 68.7 | 55.1 | 42.1 | 32.8 | 51.8 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1990 | 1969 | 1977 | 1989 | 1982 | 1990 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 2.7 | 9.9 | 29.2 | 43.0 | 54.2 | 63.2 | 71.4 | 67.0 | 55.3 | 43.3 | 27.2 | 10.3 | 43.8 |
| Year Lowest Occurred | 1979 | 1985 | 1965 | 1970 | 1983 | 1975 | 1973 | 1968 | 1965 | 1969 | 1971 | 1978 | 1973 |
| Mean Min. Temperature (F) | 2.5 | 10.2 | 23.9 | 32.8 | 41.2 | 48.4 | 55.3 | 52.6 | 43.2 | 32.2 | 21.6 | 8.6 | 31.0 |
| Highest Mean Min. Temperature (F) | 15.0 | 22.6 | 30.7 | 37.6 | 44.8 | 53.2 | 58.4 | 57.6 | 50.5 | 38.4 | 29.2 | 17.8 | 35.7 |
| Year Highest Occurred | 1980 | 1986 | 1986 | 1990 | 1963 | 1972 | 1990 | 1983 | 1990 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -11.5 | -6.3 | 15.8 | 26.7 | 38.3 | 42.9 | 50.2 | 47.5 | 37.3 | 26.0 | 14.9 | -1.6 | 27.3 |
| Year Lowest Occurred | 1979 | 1974 | 1965 | 1982 | 1975 | 1976 | 1973 | 1975 | 1971 | 1976 | 1976 | 1990 | 1973 |
| Mean Precipitation (in.) | 0.54 | 0.57 | 0.72 | 0.80 | 0.87 | 0.62 | 0.56 | 0.57 | 0.92 | 1.05 | 0.65 | 0.68 | 8.55 |
| Highest Precipitation (in.) | 1.68 | 2.20 | 2.21 | 2.07 | 3.28 | 2.62 | 1.81 | 1.52 | 3.15 | 4.26 | 1.61 | 1.93 | 12.29 |
| Year Highest Occurred | 1969 | 1983 | 1979 | 1976 | 1971 | 1970 | 1986 | 1963 | 1961 | 1981 | 1983 | 1966 | 1965 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.07 | 0.01 | 0.00 | 0.00 | 0.01 | 0.00 | 0.04 | 0.00 | 0.00 | 3.73 |
| Year Lowest Occurred | 1972 | 1972 | 1972 | 1982 | 1974 | 1979 | 1963 | 1985 | 1979 | 1988 | 1976 | 1976 | 1989 |
| Heating Degree Days (F) | 1522. | 1145. | 840. | 489. | 213. | 51. | 0. | 0. | 138. | 477. | 900. | 1376. | 7151. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 12. | 135. | 310. | 230. | 54. | 0. | 0. | 0. | 741. |