| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.6 | 53.3 | 55.7 | 61.6 | 69.6 | 78.0 | 85.2 | 84.9 | 79.4 | 70.9 | 56.5 | 47.9 | 66.0 |
| Highest Mean Max. Temperature (F) | 56.5 | 61.0 | 65.6 | 70.9 | 74.9 | 83.3 | 90.1 | 89.1 | 84.6 | 79.2 | 65.3 | 55.8 | 68.4 |
| Year Highest Occurred | 1961 | 1988 | 1972 | 1987 | 1984 | 1961 | 1961 | 1967 | 1974 | 1988 | 1976 | 1976 | 1966 |
| Lowest Mean Max. Temperature (F) | 41.5 | 42.3 | 49.6 | 45.0 | 58.2 | 73.1 | 79.6 | 76.1 | 70.9 | 63.1 | 49.7 | 40.0 | 62.4 |
| Year Lowest Occurred | 1982 | 1969 | 1982 | 1967 | 1977 | 1965 | 1983 | 1976 | 1986 | 1984 | 1973 | 1971 | 1982 |
| Mean Temperature (F) | 38.8 | 41.8 | 44.0 | 49.1 | 56.3 | 63.8 | 70.3 | 70.0 | 64.6 | 56.5 | 45.3 | 38.7 | 53.3 |
| Highest Mean Temperature (F) | 44.6 | 48.2 | 51.6 | 56.5 | 60.8 | 68.3 | 75.3 | 73.4 | 68.9 | 63.5 | 51.0 | 43.9 | 55.5 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1966 | 1981 | 1988 | 1988 | 1974 | 1988 | 1976 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 33.8 | 34.4 | 38.1 | 37.0 | 47.9 | 59.3 | 64.6 | 63.3 | 58.4 | 50.3 | 40.8 | 32.0 | 51.2 |
| Year Lowest Occurred | 1982 | 1969 | 1962 | 1967 | 1977 | 1965 | 1983 | 1976 | 1986 | 1984 | 1985 | 1971 | 1982 |
| Mean Min. Temperature (F) | 29.0 | 30.3 | 32.3 | 36.6 | 43.0 | 49.6 | 55.3 | 55.0 | 49.8 | 42.1 | 34.1 | 29.4 | 40.5 |
| Highest Mean Min. Temperature (F) | 34.3 | 35.5 | 37.6 | 43.7 | 46.7 | 53.7 | 61.0 | 59.6 | 53.7 | 49.2 | 37.8 | 34.1 | 43.2 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1966 | 1981 | 1988 | 1988 | 1988 | 1987 | 1981 | 1977 | 1988 |
| Lowest Mean Min. Temperature (F) | 24.6 | 25.7 | 26.3 | 28.9 | 37.6 | 45.5 | 49.5 | 50.4 | 44.1 | 37.4 | 30.3 | 23.6 | 38.8 |
| Year Lowest Occurred | 1963 | 1990 | 1962 | 1967 | 1977 | 1965 | 1983 | 1976 | 1965 | 1971 | 1961 | 1990 | 1962 |
| Mean Precipitation (in.) | 5.66 | 5.47 | 5.22 | 3.40 | 1.40 | 0.77 | 0.20 | 0.39 | 0.93 | 2.04 | 5.15 | 5.03 | 35.66 |
| Highest Precipitation (in.) | 18.73 | 17.06 | 16.34 | 12.49 | 4.45 | 2.77 | 1.97 | 3.41 | 4.22 | 6.68 | 14.05 | 16.64 | 75.68 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1967 | 1977 | 1963 | 1974 | 1965 | 1978 | 1975 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.21 | 0.10 | 0.23 | 0.29 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.00 | 16.89 |
| Year Lowest Occurred | 1984 | 1964 | 1972 | 1977 | 1985 | 1986 | 1990 | 1988 | 1979 | 1966 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 812. | 650. | 651. | 490. | 285. | 104. | 19. | 20. | 97. | 285. | 591. | 815. | 4819. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 15. | 68. | 183. | 175. | 85. | 21. | 0. | 0. | 560. |