| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 14.1 | 21.6 | 35.1 | 52.4 | 66.8 | 75.0 | 79.7 | 77.6 | 66.6 | 54.9 | 35.2 | 19.2 | 49.9 |
| Highest Mean Max. Temperature (F) | 28.2 | 33.0 | 44.5 | 65.7 | 77.7 | 84.6 | 85.6 | 83.0 | 72.1 | 68.4 | 44.4 | 29.1 | 55.2 |
| Year Highest Occurred | 1990 | 1987 | 1981 | 1987 | 1977 | 1988 | 1988 | 1984 | 1990 | 1963 | 1981 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 1.7 | 11.3 | 25.6 | 42.9 | 54.9 | 66.3 | 74.0 | 72.3 | 56.1 | 46.3 | 25.9 | 7.7 | 46.4 |
| Year Lowest Occurred | 1979 | 1979 | 1965 | 1975 | 1979 | 1969 | 1972 | 1977 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 2.2 | 9.2 | 23.1 | 39.9 | 52.9 | 61.6 | 66.7 | 64.3 | 53.9 | 43.5 | 25.8 | 8.8 | 37.7 |
| Highest Mean Temperature (F) | 16.9 | 24.7 | 34.3 | 49.1 | 63.1 | 70.8 | 71.7 | 70.0 | 58.3 | 54.7 | 34.6 | 19.7 | 43.3 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1983 | 1984 | 1963 | 1963 | 1981 | 1982 | 1987 |
| Lowest Mean Temperature (F) | -10.3 | -1.3 | 12.1 | 33.0 | 43.4 | 54.0 | 61.5 | 58.7 | 46.9 | 37.7 | 16.2 | -2.9 | 34.0 |
| Year Lowest Occurred | 1982 | 1989 | 1965 | 1975 | 1979 | 1969 | 1971 | 1977 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | -9.8 | -3.2 | 11.0 | 27.4 | 39.1 | 48.2 | 53.6 | 51.0 | 41.2 | 32.0 | 16.4 | -1.7 | 25.4 |
| Highest Mean Min. Temperature (F) | 5.5 | 16.3 | 24.9 | 32.4 | 48.5 | 57.0 | 59.8 | 57.1 | 45.3 | 41.0 | 24.8 | 11.6 | 31.4 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1983 | 1983 | 1963 | 1963 | 1981 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -24.0 | -15.4 | -1.7 | 22.8 | 31.8 | 41.1 | 48.7 | 43.7 | 34.4 | 25.0 | 6.5 | -13.5 | 21.5 |
| Year Lowest Occurred | 1982 | 1967 | 1970 | 1962 | 1979 | 1982 | 1984 | 1979 | 1974 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.61 | 0.45 | 0.85 | 1.58 | 2.61 | 3.86 | 3.44 | 3.54 | 3.08 | 1.77 | 0.80 | 0.62 | 23.21 |
| Highest Precipitation (in.) | 2.13 | 2.67 | 2.35 | 3.88 | 6.88 | 8.84 | 7.84 | 9.88 | 9.29 | 6.39 | 3.06 | 1.73 | 32.75 |
| Year Highest Occurred | 1975 | 1977 | 1976 | 1979 | 1962 | 1975 | 1978 | 1985 | 1973 | 1984 | 1977 | 1967 | 1977 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.57 | 0.97 | 0.97 | 0.33 | 0.11 | 0.03 | 0.00 | 15.31 |
| Year Lowest Occurred | 1987 | 1990 | 1989 | 1988 | 1976 | 1988 | 1989 | 1967 | 1976 | 1976 | 1976 | 1990 | 1990 |
| Heating Degree Days (F) | 1947. | 1562. | 1299. | 753. | 398. | 161. | 63. | 113. | 337. | 667. | 1176. | 1742. | 10218. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 22. | 59. | 115. | 92. | 0. | 0. | 0. | 0. | 288. |