| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.3 | 36.6 | 45.8 | 57.1 | 66.8 | 76.3 | 85.8 | 84.5 | 73.8 | 61.8 | 44.8 | 32.6 | 58.0 |
| Highest Mean Max. Temperature (F) | 38.1 | 46.9 | 56.4 | 67.8 | 74.1 | 84.1 | 89.8 | 89.7 | 82.7 | 71.7 | 51.2 | 39.6 | 61.0 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1969 | 1961 | 1988 | 1981 | 1990 | 1988 | 1976 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 19.7 | 25.1 | 33.5 | 47.3 | 61.3 | 70.8 | 80.9 | 75.4 | 65.5 | 54.5 | 34.3 | 19.0 | 53.9 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1975 | 1964 | 1982 | 1968 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 20.3 | 26.3 | 34.3 | 43.4 | 52.2 | 60.7 | 67.7 | 65.7 | 55.8 | 45.0 | 33.3 | 22.7 | 44.0 |
| Highest Mean Temperature (F) | 28.0 | 36.3 | 42.8 | 49.6 | 56.6 | 66.1 | 70.9 | 69.5 | 63.0 | 52.7 | 38.6 | 30.6 | 45.9 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1969 | 1988 | 1975 | 1971 | 1990 | 1988 | 1965 | 1975 | 1981 |
| Lowest Mean Temperature (F) | 8.5 | 10.9 | 20.8 | 36.8 | 48.6 | 56.8 | 64.2 | 60.6 | 50.4 | 39.7 | 23.1 | 8.4 | 38.8 |
| Year Lowest Occurred | 1979 | 1964 | 1985 | 1975 | 1975 | 1963 | 1986 | 1968 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 10.2 | 15.9 | 22.7 | 29.6 | 37.5 | 45.0 | 49.5 | 46.8 | 37.8 | 28.3 | 21.8 | 12.7 | 29.8 |
| Highest Mean Min. Temperature (F) | 20.5 | 25.6 | 29.2 | 33.8 | 41.8 | 49.2 | 53.8 | 52.2 | 44.3 | 33.6 | 26.6 | 22.5 | 32.1 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1965 | 1987 | 1977 | 1975 | 1961 | 1963 | 1988 | 1983 | 1977 | 1980 |
| Lowest Mean Min. Temperature (F) | -3.3 | -3.6 | 6.8 | 24.7 | 35.5 | 42.6 | 45.5 | 42.3 | 34.2 | 24.0 | 11.9 | -2.2 | 23.6 |
| Year Lowest Occurred | 1964 | 1964 | 1985 | 1970 | 1990 | 1978 | 1963 | 1985 | 1970 | 1966 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.73 | 0.68 | 0.73 | 0.83 | 1.23 | 0.97 | 0.51 | 0.60 | 0.74 | 0.78 | 0.85 | 0.78 | 9.43 |
| Highest Precipitation (in.) | 2.37 | 2.64 | 1.83 | 2.26 | 3.11 | 5.32 | 2.64 | 3.63 | 2.59 | 2.17 | 2.27 | 3.56 | 14.07 |
| Year Highest Occurred | 1969 | 1986 | 1989 | 1963 | 1980 | 1967 | 1984 | 1968 | 1961 | 1975 | 1988 | 1964 | 1980 |
| Lowest Precipitation (in.) | 0.12 | 0.04 | 0.05 | 0.00 | 0.09 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 5.28 |
| Year Lowest Occurred | 1961 | 1990 | 1965 | 1987 | 1979 | 1974 | 1990 | 1988 | 1987 | 1988 | 1976 | 1989 | 1990 |
| Heating Degree Days (F) | 1386. | 1084. | 952. | 648. | 397. | 160. | 24. | 64. | 289. | 620. | 951. | 1311. | 7886. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 31. | 108. | 86. | 13. | 0. | 0. | 0. | 238. |