| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.6 | 50.6 | 57.1 | 66.2 | 74.2 | 83.1 | 86.1 | 84.0 | 77.0 | 68.2 | 56.2 | 47.3 | 66.4 |
| Highest Mean Max. Temperature (F) | 54.6 | 58.0 | 66.5 | 72.2 | 81.9 | 90.4 | 92.7 | 89.6 | 82.6 | 74.2 | 63.4 | 57.3 | 68.8 |
| Year Highest Occurred | 1969 | 1976 | 1967 | 1981 | 1974 | 1990 | 1980 | 1962 | 1983 | 1967 | 1989 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 34.9 | 41.0 | 47.6 | 56.5 | 68.9 | 74.7 | 81.5 | 79.4 | 72.7 | 57.5 | 45.6 | 38.6 | 63.4 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1973 | 1983 | 1989 | 1990 | 1971 | 1974 | 1986 | 1972 | 1983 | 1987 |
| Mean Temperature (F) | 31.8 | 35.5 | 41.5 | 50.0 | 58.7 | 67.6 | 71.8 | 70.0 | 63.0 | 52.9 | 41.8 | 33.0 | 51.5 |
| Highest Mean Temperature (F) | 39.3 | 41.6 | 48.5 | 56.6 | 63.8 | 75.1 | 77.4 | 74.0 | 67.5 | 58.2 | 46.9 | 41.6 | 54.0 |
| Year Highest Occurred | 1969 | 1976 | 1974 | 1981 | 1974 | 1980 | 1980 | 1980 | 1963 | 1963 | 1989 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 23.6 | 26.9 | 34.0 | 41.2 | 53.5 | 59.7 | 68.0 | 66.4 | 59.2 | 47.1 | 33.4 | 25.7 | 49.9 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1973 | 1983 | 1989 | 1989 | 1986 | 1961 | 1986 | 1972 | 1983 | 1961 |
| Mean Min. Temperature (F) | 17.0 | 20.5 | 25.8 | 33.8 | 43.2 | 52.0 | 57.4 | 55.9 | 48.9 | 37.6 | 27.3 | 18.8 | 36.5 |
| Highest Mean Min. Temperature (F) | 24.0 | 25.5 | 32.7 | 41.0 | 49.2 | 61.8 | 62.0 | 61.5 | 53.3 | 43.3 | 32.0 | 25.9 | 39.2 |
| Year Highest Occurred | 1969 | 1986 | 1986 | 1981 | 1970 | 1980 | 1980 | 1980 | 1963 | 1963 | 1986 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 9.9 | 12.8 | 17.4 | 25.9 | 38.0 | 44.6 | 53.6 | 52.6 | 44.3 | 33.1 | 19.8 | 12.8 | 34.8 |
| Year Lowest Occurred | 1963 | 1964 | 1962 | 1973 | 1983 | 1989 | 1989 | 1986 | 1961 | 1976 | 1976 | 1983 | 1988 |
| Mean Precipitation (in.) | 0.34 | 0.43 | 0.55 | 0.82 | 1.84 | 2.08 | 2.97 | 2.81 | 1.90 | 1.05 | 0.50 | 0.45 | 15.74 |
| Highest Precipitation (in.) | 1.10 | 2.66 | 2.30 | 2.58 | 3.90 | 9.23 | 6.28 | 6.07 | 4.95 | 3.25 | 3.20 | 1.67 | 25.37 |
| Year Highest Occurred | 1979 | 1987 | 1985 | 1977 | 1979 | 1965 | 1967 | 1986 | 1988 | 1986 | 1978 | 1962 | 1965 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.46 | 0.06 | 0.92 | 0.58 | 0.38 | 0.00 | 0.00 | 0.00 | 8.80 |
| Year Lowest Occurred | 1969 | 1985 | 1989 | 1987 | 1968 | 1990 | 1987 | 1962 | 1966 | 1987 | 1989 | 1988 | 1964 |
| Heating Degree Days (F) | 1029. | 826. | 729. | 450. | 207. | 67. | 11. | 14. | 98. | 380. | 696. | 992. | 5499. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 145. | 221. | 169. | 38. | 0. | 0. | 0. | 584. |