| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.6 | 35.3 | 41.3 | 51.7 | 62.9 | 72.2 | 77.3 | 75.7 | 68.6 | 57.7 | 42.6 | 32.9 | 54.2 |
| Highest Mean Max. Temperature (F) | 42.1 | 42.2 | 48.1 | 58.8 | 69.1 | 78.7 | 80.9 | 79.3 | 74.4 | 64.8 | 49.4 | 44.5 | 56.8 |
| Year Highest Occurred | 1981 | 1976 | 1986 | 1981 | 1974 | 1977 | 1963 | 1971 | 1963 | 1963 | 1962 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 23.8 | 26.1 | 34.9 | 43.8 | 56.9 | 66.3 | 73.4 | 71.1 | 61.5 | 47.6 | 34.9 | 25.9 | 51.4 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1984 | 1983 | 1969 | 1986 | 1968 | 1965 | 1969 | 1979 | 1990 | 1984 |
| Mean Temperature (F) | 18.5 | 21.5 | 27.8 | 37.4 | 47.2 | 55.4 | 61.2 | 59.6 | 52.3 | 42.1 | 29.6 | 20.5 | 39.4 |
| Highest Mean Temperature (F) | 27.2 | 27.7 | 34.6 | 43.9 | 51.5 | 60.5 | 63.9 | 62.5 | 57.3 | 48.2 | 35.7 | 31.5 | 42.2 |
| Year Highest Occurred | 1981 | 1976 | 1986 | 1981 | 1969 | 1988 | 1966 | 1983 | 1963 | 1963 | 1977 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 11.5 | 11.7 | 19.9 | 31.1 | 43.0 | 52.2 | 58.6 | 56.6 | 48.0 | 35.5 | 20.9 | 13.9 | 37.2 |
| Year Lowest Occurred | 1962 | 1985 | 1965 | 1984 | 1983 | 1983 | 1986 | 1968 | 1965 | 1970 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 5.4 | 7.6 | 14.3 | 23.1 | 31.4 | 38.6 | 45.1 | 43.5 | 35.9 | 26.5 | 16.6 | 7.9 | 24.7 |
| Highest Mean Min. Temperature (F) | 12.6 | 13.7 | 21.6 | 28.9 | 34.9 | 45.9 | 48.9 | 47.4 | 40.8 | 31.5 | 24.0 | 20.4 | 27.7 |
| Year Highest Occurred | 1969 | 1978 | 1990 | 1981 | 1987 | 1988 | 1981 | 1983 | 1990 | 1963 | 1977 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | -3.9 | -3.0 | 4.7 | 16.9 | 28.7 | 35.1 | 42.1 | 36.3 | 30.5 | 21.3 | 6.9 | 0.0 | 22.1 |
| Year Lowest Occurred | 1962 | 1974 | 1965 | 1982 | 1982 | 1982 | 1962 | 1974 | 1974 | 1976 | 1979 | 1978 | 1974 |
| Mean Precipitation (in.) | 1.01 | 0.88 | 1.17 | 1.27 | 1.37 | 1.48 | 2.01 | 1.71 | 1.46 | 1.30 | 1.18 | 1.19 | 16.03 |
| Highest Precipitation (in.) | 2.24 | 2.35 | 3.13 | 2.93 | 2.92 | 3.45 | 4.08 | 4.10 | 5.28 | 3.62 | 2.98 | 3.17 | 20.45 |
| Year Highest Occurred | 1980 | 1962 | 1989 | 1961 | 1982 | 1969 | 1965 | 1969 | 1961 | 1972 | 1985 | 1983 | 1961 |
| Lowest Precipitation (in.) | 0.28 | 0.13 | 0.34 | 0.27 | 0.21 | 0.10 | 0.46 | 0.43 | 0.13 | 0.13 | 0.26 | 0.31 | 10.44 |
| Year Lowest Occurred | 1961 | 1973 | 1969 | 1965 | 1986 | 1980 | 1962 | 1974 | 1964 | 1965 | 1966 | 1986 | 1966 |
| Heating Degree Days (F) | 1442. | 1218. | 1153. | 828. | 552. | 291. | 126. | 173. | 381. | 710. | 1062. | 1380. | 9316. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 8. | 5. | 0. | 0. | 0. | 0. | 13. |