| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.9 | 41.6 | 46.4 | 54.9 | 65.1 | 76.7 | 80.0 | 76.9 | 71.4 | 62.3 | 49.3 | 40.9 | 58.7 |
| Highest Mean Max. Temperature (F) | 49.3 | 46.3 | 58.9 | 65.7 | 72.1 | 81.8 | 83.9 | 81.5 | 76.4 | 69.0 | 57.3 | 49.3 | 62.1 |
| Year Highest Occurred | 1986 | 1981 | 1972 | 1989 | 1984 | 1974 | 1989 | 1962 | 1979 | 1988 | 1967 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 32.0 | 36.0 | 39.7 | 47.4 | 60.2 | 69.0 | 75.8 | 72.2 | 67.3 | 51.6 | 39.8 | 33.9 | 56.5 |
| Year Lowest Occurred | 1979 | 1964 | 1970 | 1973 | 1979 | 1965 | 1986 | 1968 | 1986 | 1984 | 1972 | 1978 | 1973 |
| Mean Temperature (F) | 23.3 | 26.2 | 31.7 | 39.3 | 48.0 | 57.7 | 63.2 | 61.0 | 54.6 | 44.9 | 33.5 | 25.4 | 42.4 |
| Highest Mean Temperature (F) | 31.8 | 31.5 | 41.5 | 44.2 | 53.5 | 61.9 | 65.3 | 63.1 | 57.9 | 49.4 | 38.8 | 33.5 | 44.6 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1984 | 1974 | 1966 | 1977 | 1983 | 1988 | 1966 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 18.2 | 18.5 | 24.8 | 33.4 | 45.1 | 51.5 | 60.6 | 56.4 | 50.4 | 39.7 | 26.8 | 20.4 | 40.5 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1970 | 1965 | 1965 | 1986 | 1968 | 1985 | 1984 | 1972 | 1967 | 1964 |
| Mean Min. Temperature (F) | 7.6 | 10.8 | 17.0 | 23.6 | 30.8 | 38.7 | 46.4 | 45.0 | 37.8 | 27.4 | 17.7 | 9.9 | 26.1 |
| Highest Mean Min. Temperature (F) | 17.4 | 18.7 | 24.0 | 28.5 | 34.9 | 42.0 | 50.2 | 48.5 | 42.6 | 33.9 | 23.7 | 18.6 | 28.7 |
| Year Highest Occurred | 1980 | 1976 | 1972 | 1962 | 1984 | 1990 | 1967 | 1982 | 1977 | 1972 | 1978 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 1.0 | 1.0 | 8.0 | 15.5 | 27.0 | 33.9 | 42.4 | 40.6 | 32.0 | 22.5 | 12.9 | 3.8 | 22.9 |
| Year Lowest Occurred | 1964 | 1964 | 1969 | 1970 | 1986 | 1964 | 1987 | 1968 | 1985 | 1985 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.65 | 1.48 | 1.90 | 1.06 | 0.73 | 0.60 | 2.47 | 2.60 | 1.70 | 1.52 | 1.47 | 1.62 | 18.80 |
| Highest Precipitation (in.) | 5.88 | 4.18 | 4.77 | 3.06 | 2.47 | 3.35 | 4.13 | 4.77 | 4.25 | 6.79 | 3.74 | 4.21 | 26.60 |
| Year Highest Occurred | 1979 | 1980 | 1983 | 1988 | 1979 | 1988 | 1981 | 1963 | 1971 | 1972 | 1982 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.57 | 0.44 | 0.00 | 0.12 | 0.00 | 10.08 |
| Year Lowest Occurred | 1972 | 1984 | 1972 | 1989 | 1989 | 1989 | 1979 | 1978 | 1979 | 1988 | 1989 | 1976 | 1976 |
| Heating Degree Days (F) | 1293. | 1086. | 1032. | 771. | 527. | 225. | 78. | 133. | 312. | 623. | 945. | 1228. | 8253. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 23. | 9. | 0. | 0. | 0. | 0. | 38. |