| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 50.8 | 53.5 | 54.5 | 60.3 | 67.2 | 76.9 | 84.6 | 84.0 | 78.8 | 69.9 | 59.0 | 51.9 | 66.0 |
| Highest Mean Max. Temperature (F) | 58.6 | 63.6 | 68.1 | 69.7 | 76.0 | 83.3 | 89.4 | 91.2 | 84.5 | 78.8 | 66.3 | 59.9 | 68.5 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1981 | 1961 | 1969 | 1962 | 1965 | 1962 | 1969 | 1966 |
| Lowest Mean Max. Temperature (F) | 43.1 | 45.8 | 44.2 | 46.9 | 57.1 | 71.0 | 79.4 | 78.6 | 70.2 | 62.3 | 53.8 | 43.8 | 63.6 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1975 | 1977 | 1982 | 1986 | 1976 | 1985 | 1971 | 1964 | 1971 | 1982 |
| Mean Temperature (F) | 40.3 | 42.1 | 43.6 | 48.1 | 54.0 | 62.8 | 70.0 | 69.2 | 63.7 | 54.9 | 46.5 | 40.5 | 53.0 |
| Highest Mean Temperature (F) | 46.6 | 48.8 | 52.0 | 55.5 | 61.4 | 70.1 | 72.8 | 74.6 | 68.6 | 60.6 | 50.2 | 47.1 | 55.2 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1981 | 1970 | 1969 | 1979 | 1964 | 1980 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 36.0 | 35.7 | 36.8 | 39.4 | 47.4 | 55.9 | 64.4 | 64.6 | 57.4 | 49.3 | 41.2 | 34.7 | 50.2 |
| Year Lowest Occurred | 1979 | 1990 | 1973 | 1975 | 1977 | 1965 | 1982 | 1976 | 1985 | 1971 | 1964 | 1990 | 1982 |
| Mean Min. Temperature (F) | 29.7 | 30.7 | 32.6 | 36.0 | 40.8 | 48.6 | 55.2 | 54.4 | 48.4 | 39.9 | 33.9 | 29.1 | 39.9 |
| Highest Mean Min. Temperature (F) | 36.8 | 36.9 | 38.5 | 41.3 | 46.7 | 56.9 | 59.3 | 59.2 | 55.2 | 45.4 | 39.1 | 36.6 | 43.3 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1989 | 1984 | 1981 | 1980 | 1970 | 1983 | 1980 | 1969 | 1977 | 1980 |
| Lowest Mean Min. Temperature (F) | 25.2 | 22.6 | 25.9 | 30.1 | 36.1 | 40.2 | 47.2 | 48.2 | 41.4 | 31.5 | 28.6 | 21.6 | 36.7 |
| Year Lowest Occurred | 1963 | 1990 | 1964 | 1967 | 1990 | 1965 | 1982 | 1982 | 1965 | 1982 | 1964 | 1990 | 1982 |
| Mean Precipitation (in.) | 5.31 | 5.51 | 6.18 | 3.03 | 1.08 | 0.15 | 0.46 | 0.79 | 1.04 | 1.45 | 4.20 | 5.37 | 34.57 |
| Highest Precipitation (in.) | 22.37 | 24.34 | 20.68 | 11.94 | 5.04 | 1.39 | 3.29 | 4.10 | 7.12 | 5.65 | 15.49 | 18.07 | 68.49 |
| Year Highest Occurred | 1980 | 1980 | 1983 | 1967 | 1977 | 1972 | 1984 | 1977 | 1976 | 1974 | 1965 | 1966 | 1980 |
| Lowest Precipitation (in.) | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.37 | 14.31 |
| Year Lowest Occurred | 1976 | 1967 | 1972 | 1962 | 1984 | 1989 | 1989 | 1985 | 1980 | 1988 | 1962 | 1962 | 1961 |
| Heating Degree Days (F) | 766. | 641. | 663. | 513. | 347. | 136. | 14. | 26. | 112. | 323. | 555. | 760. | 4856. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 6. | 70. | 169. | 156. | 73. | 10. | 0. | 0. | 490. |