| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.8 | 45.6 | 55.7 | 64.5 | 72.8 | 80.9 | 88.4 | 87.0 | 77.5 | 65.7 | 50.0 | 38.1 | 63.6 |
| Highest Mean Max. Temperature (F) | 44.5 | 53.3 | 61.7 | 73.8 | 78.8 | 87.5 | 93.0 | 92.8 | 84.2 | 74.0 | 54.4 | 44.4 | 66.1 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1966 | 1961 | 1985 | 1967 | 1990 | 1988 | 1965 | 1977 | 1966 |
| Lowest Mean Max. Temperature (F) | 24.5 | 28.5 | 50.0 | 55.5 | 66.8 | 75.8 | 83.9 | 81.0 | 68.2 | 60.6 | 38.8 | 21.3 | 59.5 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1977 | 1964 | 1986 | 1968 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 28.9 | 36.1 | 43.8 | 51.1 | 59.0 | 66.7 | 72.7 | 71.3 | 62.3 | 51.6 | 40.2 | 30.3 | 51.2 |
| Highest Mean Temperature (F) | 37.3 | 42.9 | 48.5 | 57.2 | 63.8 | 71.7 | 77.0 | 75.5 | 69.2 | 58.4 | 44.4 | 37.3 | 53.0 |
| Year Highest Occurred | 1970 | 1963 | 1986 | 1987 | 1987 | 1961 | 1985 | 1967 | 1990 | 1988 | 1966 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 15.1 | 20.0 | 37.7 | 44.9 | 54.3 | 63.5 | 66.8 | 67.3 | 55.4 | 47.0 | 28.0 | 11.4 | 46.1 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1976 | 1983 | 1985 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 20.9 | 26.5 | 31.9 | 37.8 | 45.2 | 52.4 | 57.0 | 55.5 | 47.0 | 37.5 | 30.4 | 22.3 | 38.7 |
| Highest Mean Min. Temperature (F) | 30.4 | 33.2 | 37.7 | 43.0 | 49.9 | 56.9 | 61.8 | 59.3 | 54.2 | 43.8 | 36.1 | 30.1 | 40.5 |
| Year Highest Occurred | 1970 | 1983 | 1983 | 1990 | 1987 | 1988 | 1975 | 1986 | 1990 | 1963 | 1983 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 5.6 | 11.5 | 24.5 | 33.3 | 41.7 | 48.7 | 49.0 | 49.9 | 41.7 | 32.7 | 17.2 | 1.4 | 32.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1970 | 1977 | 1976 | 1983 | 1985 | 1970 | 1985 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.09 | 0.83 | 1.05 | 0.94 | 0.87 | 0.89 | 0.27 | 0.49 | 0.62 | 0.67 | 1.13 | 1.11 | 9.96 |
| Highest Precipitation (in.) | 3.41 | 2.81 | 3.34 | 3.33 | 1.92 | 2.38 | 1.12 | 2.36 | 2.61 | 1.75 | 2.22 | 2.86 | 15.73 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1980 | 1963 | 1983 | 1965 | 1986 | 1962 | 1988 | 1981 | 1983 |
| Lowest Precipitation (in.) | 0.16 | 0.12 | 0.11 | 0.09 | 0.22 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.00 | 5.60 |
| Year Lowest Occurred | 1985 | 1964 | 1963 | 1987 | 1975 | 1989 | 1986 | 1973 | 1990 | 1988 | 1969 | 1989 | 1966 |
| Heating Degree Days (F) | 1119. | 809. | 657. | 417. | 199. | 52. | 6. | 15. | 151. | 415. | 744. | 1076. | 5660. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 103. | 245. | 210. | 70. | 0. | 0. | 0. | 641. |