| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.0 | 41.3 | 47.3 | 56.8 | 67.0 | 77.4 | 81.9 | 79.0 | 72.0 | 62.7 | 48.2 | 38.9 | 59.1 |
| Highest Mean Max. Temperature (F) | 46.2 | 47.1 | 57.0 | 64.4 | 74.7 | 82.5 | 87.8 | 83.8 | 78.3 | 70.3 | 54.5 | 48.3 | 61.9 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1989 | 1963 | 1990 | 1963 | 1962 | 1979 | 1979 | 1967 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 30.4 | 33.5 | 40.8 | 49.1 | 62.5 | 71.6 | 77.6 | 73.7 | 65.1 | 51.7 | 39.4 | 33.5 | 57.1 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1983 | 1980 | 1967 | 1986 | 1968 | 1986 | 1984 | 1972 | 1983 | 1982 |
| Mean Temperature (F) | 19.9 | 24.8 | 32.3 | 40.2 | 49.1 | 57.9 | 64.2 | 62.3 | 54.8 | 45.1 | 32.5 | 22.9 | 42.2 |
| Highest Mean Temperature (F) | 27.6 | 31.3 | 38.9 | 45.9 | 55.2 | 62.7 | 69.2 | 65.7 | 60.4 | 51.0 | 36.5 | 30.1 | 45.2 |
| Year Highest Occurred | 1986 | 1970 | 1972 | 1989 | 1966 | 1961 | 1963 | 1963 | 1963 | 1963 | 1967 | 1980 | 1963 |
| Lowest Mean Temperature (F) | 14.4 | 17.6 | 27.9 | 34.6 | 45.3 | 54.1 | 61.4 | 58.2 | 51.1 | 39.1 | 26.4 | 17.7 | 39.4 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1983 | 1971 | 1969 | 1986 | 1968 | 1970 | 1970 | 1972 | 1978 | 1975 |
| Mean Min. Temperature (F) | 2.8 | 8.2 | 17.3 | 23.5 | 31.2 | 38.5 | 46.4 | 45.5 | 37.5 | 27.5 | 16.8 | 6.9 | 25.2 |
| Highest Mean Min. Temperature (F) | 13.6 | 16.5 | 21.9 | 28.1 | 35.8 | 43.2 | 50.5 | 51.6 | 44.5 | 36.1 | 21.4 | 14.7 | 28.5 |
| Year Highest Occurred | 1980 | 1986 | 1985 | 1990 | 1966 | 1961 | 1963 | 1963 | 1963 | 1972 | 1986 | 1984 | 1963 |
| Lowest Mean Min. Temperature (F) | -4.5 | -2.1 | 12.1 | 17.3 | 25.8 | 34.5 | 42.1 | 41.0 | 31.6 | 21.5 | 9.5 | 0.6 | 21.2 |
| Year Lowest Occurred | 1977 | 1974 | 1971 | 1971 | 1971 | 1976 | 1979 | 1979 | 1987 | 1970 | 1975 | 1990 | 1975 |
| Mean Precipitation (in.) | 1.06 | 1.04 | 1.05 | 0.79 | 0.96 | 0.86 | 2.14 | 2.72 | 1.93 | 1.32 | 1.09 | 1.04 | 16.00 |
| Highest Precipitation (in.) | 3.75 | 5.35 | 2.93 | 2.93 | 2.62 | 3.09 | 4.11 | 5.96 | 4.48 | 4.31 | 2.78 | 3.16 | 24.85 |
| Year Highest Occurred | 1969 | 1982 | 1978 | 1985 | 1981 | 1988 | 1971 | 1967 | 1986 | 1972 | 1986 | 1990 | 1986 |
| Lowest Precipitation (in.) | 0.10 | 0.05 | 0.12 | 0.00 | 0.00 | 0.00 | 0.66 | 0.27 | 0.25 | 0.00 | 0.00 | 0.04 | 9.49 |
| Year Lowest Occurred | 1970 | 1972 | 1971 | 1967 | 1963 | 1968 | 1979 | 1962 | 1968 | 1989 | 1989 | 1981 | 1989 |
| Heating Degree Days (F) | 1398. | 1126. | 1014. | 744. | 493. | 220. | 71. | 109. | 306. | 617. | 975. | 1305. | 8378. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 46. | 25. | 0. | 0. | 0. | 0. | 78. |