| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.6 | 51.5 | 60.0 | 70.4 | 78.5 | 87.2 | 92.2 | 89.8 | 81.7 | 72.2 | 58.7 | 49.0 | 69.9 |
| Highest Mean Max. Temperature (F) | 57.9 | 61.3 | 69.0 | 77.3 | 86.5 | 95.2 | 99.4 | 96.5 | 87.6 | 81.0 | 66.3 | 57.2 | 72.6 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1963 | 1962 | 1990 | 1980 | 1983 | 1983 | 1963 | 1965 | 1970 | 1963 |
| Lowest Mean Max. Temperature (F) | 33.7 | 38.0 | 47.6 | 61.8 | 72.9 | 79.8 | 87.1 | 83.8 | 74.3 | 63.9 | 46.8 | 36.4 | 68.3 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1973 | 1976 | 1989 | 1972 | 1974 | 1974 | 1969 | 1972 | 1983 | 1987 |
| Mean Temperature (F) | 33.6 | 37.4 | 45.0 | 55.1 | 64.2 | 73.4 | 78.8 | 76.7 | 68.6 | 57.7 | 44.8 | 35.6 | 55.9 |
| Highest Mean Temperature (F) | 42.8 | 45.8 | 51.5 | 61.0 | 70.2 | 78.9 | 84.8 | 81.8 | 72.4 | 65.8 | 51.1 | 42.2 | 58.6 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1962 | 1990 | 1980 | 1983 | 1977 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 23.4 | 27.7 | 35.8 | 48.3 | 59.3 | 67.7 | 75.2 | 72.5 | 62.5 | 51.7 | 36.0 | 24.1 | 54.4 |
| Year Lowest Occurred | 1979 | 1978 | 1965 | 1983 | 1983 | 1989 | 1972 | 1974 | 1974 | 1976 | 1972 | 1983 | 1961 |
| Mean Min. Temperature (F) | 19.6 | 23.3 | 29.9 | 39.9 | 49.8 | 59.5 | 65.5 | 63.6 | 55.4 | 43.1 | 30.9 | 22.2 | 41.9 |
| Highest Mean Min. Temperature (F) | 27.7 | 30.7 | 36.7 | 46.0 | 54.8 | 63.4 | 70.2 | 67.0 | 59.7 | 50.5 | 37.9 | 29.1 | 45.2 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1977 | 1981 | 1980 | 1983 | 1990 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 8.8 | 17.3 | 22.4 | 33.0 | 43.3 | 54.3 | 62.2 | 59.9 | 50.4 | 38.4 | 25.1 | 11.8 | 40.1 |
| Year Lowest Occurred | 1963 | 1978 | 1965 | 1983 | 1983 | 1983 | 1961 | 1967 | 1961 | 1976 | 1972 | 1983 | 1961 |
| Mean Precipitation (in.) | 0.41 | 0.73 | 0.98 | 1.06 | 2.72 | 2.84 | 2.42 | 2.18 | 1.88 | 1.07 | 0.72 | 0.40 | 17.41 |
| Highest Precipitation (in.) | 1.15 | 1.95 | 4.54 | 2.83 | 7.61 | 10.21 | 7.19 | 5.29 | 6.17 | 3.45 | 2.21 | 1.19 | 24.81 |
| Year Highest Occurred | 1978 | 1964 | 1973 | 1990 | 1988 | 1965 | 1961 | 1981 | 1985 | 1968 | 1964 | 1965 | 1961 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.05 | 0.01 | 0.21 | 0.31 | 0.58 | 0.25 | 0.00 | 0.00 | 0.00 | 8.18 |
| Year Lowest Occurred | 1986 | 1988 | 1964 | 1974 | 1966 | 1973 | 1978 | 1971 | 1983 | 1975 | 1989 | 1976 | 1966 |
| Heating Degree Days (F) | 973. | 773. | 620. | 309. | 109. | 10. | 0. | 0. | 26. | 245. | 606. | 911. | 4582. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 84. | 262. | 428. | 363. | 134. | 19. | 0. | 0. | 1302. |