| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.5 | 39.6 | 51.4 | 63.7 | 73.8 | 85.3 | 91.8 | 89.4 | 79.4 | 66.7 | 48.9 | 34.7 | 63.0 |
| Highest Mean Max. Temperature (F) | 46.4 | 51.3 | 62.7 | 69.6 | 80.7 | 91.5 | 95.3 | 92.8 | 86.6 | 73.9 | 57.9 | 47.5 | 66.8 |
| Year Highest Occurred | 1981 | 1963 | 1972 | 1981 | 1974 | 1977 | 1976 | 1969 | 1979 | 1963 | 1966 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 16.0 | 26.6 | 41.1 | 55.9 | 65.4 | 79.1 | 87.2 | 84.7 | 71.5 | 57.3 | 40.9 | 22.6 | 59.7 |
| Year Lowest Occurred | 1973 | 1973 | 1965 | 1983 | 1967 | 1967 | 1986 | 1968 | 1961 | 1969 | 1971 | 1978 | 1973 |
| Mean Temperature (F) | 16.5 | 24.4 | 36.7 | 47.7 | 56.8 | 66.7 | 73.5 | 70.9 | 61.1 | 48.8 | 34.5 | 20.6 | 46.5 |
| Highest Mean Temperature (F) | 29.6 | 35.5 | 46.2 | 52.6 | 61.8 | 71.4 | 76.5 | 74.8 | 67.4 | 55.0 | 40.6 | 32.3 | 50.1 |
| Year Highest Occurred | 1981 | 1986 | 1986 | 1990 | 1963 | 1988 | 1989 | 1983 | 1990 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 0.2 | 10.3 | 26.3 | 42.0 | 51.5 | 60.2 | 70.8 | 65.2 | 55.5 | 43.1 | 27.7 | 8.3 | 41.9 |
| Year Lowest Occurred | 1973 | 1973 | 1965 | 1975 | 1975 | 1973 | 1965 | 1968 | 1961 | 1969 | 1979 | 1972 | 1973 |
| Mean Min. Temperature (F) | 1.5 | 9.2 | 21.9 | 31.7 | 39.7 | 48.2 | 55.2 | 52.4 | 42.6 | 30.9 | 20.1 | 6.4 | 30.0 |
| Highest Mean Min. Temperature (F) | 12.7 | 24.3 | 31.5 | 37.5 | 44.2 | 54.1 | 59.5 | 58.3 | 51.7 | 36.1 | 25.9 | 17.1 | 35.4 |
| Year Highest Occurred | 1981 | 1986 | 1986 | 1990 | 1987 | 1988 | 1985 | 1983 | 1990 | 1988 | 1965 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -15.6 | -9.6 | 11.5 | 26.0 | 32.1 | 34.7 | 51.6 | 44.2 | 34.7 | 23.9 | 13.7 | -7.4 | 24.1 |
| Year Lowest Occurred | 1973 | 1974 | 1965 | 1968 | 1974 | 1973 | 1968 | 1974 | 1968 | 1966 | 1979 | 1972 | 1973 |
| Mean Precipitation (in.) | 0.49 | 0.47 | 0.87 | 1.06 | 1.01 | 0.83 | 1.06 | 0.85 | 1.20 | 1.17 | 0.69 | 0.58 | 10.28 |
| Highest Precipitation (in.) | 1.45 | 2.62 | 3.18 | 2.71 | 2.79 | 2.94 | 2.66 | 1.83 | 4.35 | 4.35 | 1.52 | 1.69 | 14.87 |
| Year Highest Occurred | 1974 | 1962 | 1979 | 1984 | 1983 | 1970 | 1986 | 1963 | 1961 | 1981 | 1965 | 1972 | 1984 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.07 | 0.00 | 0.00 | 0.00 | 6.34 |
| Year Lowest Occurred | 1976 | 1976 | 1972 | 1966 | 1974 | 1961 | 1972 | 1971 | 1987 | 1988 | 1976 | 1976 | 1989 |
| Heating Degree Days (F) | 1504. | 1137. | 877. | 519. | 262. | 65. | 0. | 12. | 159. | 502. | 915. | 1376. | 7328. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 116. | 264. | 195. | 42. | 0. | 0. | 0. | 624. |