| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 49.8 | 55.1 | 62.4 | 70.8 | 79.6 | 89.2 | 90.4 | 87.4 | 81.0 | 71.3 | 58.9 | 50.3 | 70.5 |
| Highest Mean Max. Temperature (F) | 56.6 | 60.2 | 70.1 | 77.4 | 85.1 | 95.2 | 95.6 | 92.2 | 85.0 | 76.6 | 64.8 | 57.3 | 72.6 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1984 | 1980 | 1980 | 1962 | 1983 | 1963 | 1973 | 1981 | 1963 |
| Lowest Mean Max. Temperature (F) | 44.8 | 46.5 | 57.3 | 63.8 | 75.3 | 85.5 | 85.1 | 81.2 | 77.2 | 62.1 | 52.6 | 45.1 | 68.6 |
| Year Lowest Occurred | 1966 | 1964 | 1962 | 1983 | 1979 | 1986 | 1990 | 1988 | 1988 | 1970 | 1972 | 1967 | 1990 |
| Mean Temperature (F) | 35.4 | 39.9 | 46.0 | 53.5 | 62.4 | 71.9 | 75.4 | 73.1 | 66.6 | 56.1 | 44.2 | 36.1 | 55.1 |
| Highest Mean Temperature (F) | 41.9 | 44.3 | 51.9 | 58.4 | 66.8 | 75.3 | 78.7 | 76.3 | 71.2 | 61.0 | 49.2 | 41.3 | 56.6 |
| Year Highest Occurred | 1969 | 1976 | 1967 | 1989 | 1984 | 1990 | 1980 | 1969 | 1983 | 1963 | 1965 | 1977 | 1963 |
| Lowest Mean Temperature (F) | 31.3 | 31.4 | 41.6 | 47.1 | 58.7 | 69.1 | 71.5 | 69.9 | 62.6 | 48.6 | 39.3 | 32.5 | 53.6 |
| Year Lowest Occurred | 1964 | 1964 | 1962 | 1983 | 1975 | 1973 | 1990 | 1990 | 1988 | 1970 | 1979 | 1987 | 1987 |
| Mean Min. Temperature (F) | 20.9 | 24.7 | 29.6 | 36.2 | 45.1 | 54.6 | 60.4 | 58.7 | 52.1 | 40.8 | 29.5 | 21.9 | 39.5 |
| Highest Mean Min. Temperature (F) | 28.0 | 28.8 | 34.6 | 40.7 | 48.5 | 57.8 | 64.2 | 61.5 | 57.4 | 45.4 | 35.3 | 25.8 | 41.1 |
| Year Highest Occurred | 1969 | 1986 | 1967 | 1967 | 1984 | 1961 | 1969 | 1969 | 1983 | 1963 | 1978 | 1965 | 1981 |
| Lowest Mean Min. Temperature (F) | 14.9 | 16.2 | 25.0 | 30.4 | 40.7 | 51.0 | 56.5 | 55.6 | 48.0 | 35.0 | 23.9 | 17.0 | 38.0 |
| Year Lowest Occurred | 1964 | 1964 | 1969 | 1983 | 1983 | 1973 | 1986 | 1990 | 1988 | 1970 | 1979 | 1989 | 1987 |
| Mean Precipitation (in.) | 0.43 | 0.42 | 0.42 | 0.37 | 0.53 | 0.72 | 2.21 | 2.48 | 1.64 | 1.17 | 0.58 | 0.56 | 11.53 |
| Highest Precipitation (in.) | 1.85 | 1.20 | 1.57 | 1.55 | 1.72 | 2.98 | 5.96 | 8.17 | 3.47 | 4.46 | 2.53 | 1.88 | 16.52 |
| Year Highest Occurred | 1978 | 1987 | 1983 | 1985 | 1978 | 1966 | 1989 | 1988 | 1980 | 1972 | 1986 | 1978 | 1988 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.73 | 0.08 | 0.02 | 0.00 | 0.00 | 0.00 | 5.92 |
| Year Lowest Occurred | 1984 | 1984 | 1988 | 1989 | 1974 | 1989 | 1983 | 1962 | 1970 | 1975 | 1989 | 1988 | 1964 |
| Heating Degree Days (F) | 918. | 703. | 589. | 349. | 113. | 0. | 0. | 0. | 33. | 284. | 624. | 896. | 4509. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 32. | 210. | 322. | 251. | 81. | 8. | 0. | 0. | 904. |