| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.7 | 54.8 | 58.5 | 65.1 | 73.0 | 81.8 | 89.8 | 90.1 | 84.3 | 74.1 | 58.0 | 47.9 | 68.8 |
| Highest Mean Max. Temperature (F) | 56.9 | 66.8 | 72.1 | 76.5 | 82.2 | 87.5 | 96.9 | 97.9 | 94.3 | 83.5 | 70.6 | 56.0 | 74.0 |
| Year Highest Occurred | 1976 | 1977 | 1972 | 1977 | 1976 | 1977 | 1977 | 1977 | 1974 | 1965 | 1976 | 1976 | 1977 |
| Lowest Mean Max. Temperature (F) | 42.2 | 43.4 | 50.9 | 49.8 | 64.8 | 74.7 | 83.3 | 82.8 | 72.4 | 65.1 | 49.5 | 40.7 | 64.5 |
| Year Lowest Occurred | 1982 | 1969 | 1982 | 1967 | 1980 | 1963 | 1983 | 1968 | 1986 | 1981 | 1985 | 1971 | 1982 |
| Mean Temperature (F) | 37.3 | 41.6 | 44.6 | 50.2 | 57.3 | 65.0 | 71.7 | 71.4 | 65.5 | 56.6 | 44.4 | 36.9 | 53.5 |
| Highest Mean Temperature (F) | 44.2 | 47.7 | 52.4 | 57.0 | 62.1 | 70.1 | 76.5 | 75.7 | 70.4 | 62.3 | 50.2 | 43.6 | 55.7 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1976 | 1961 | 1961 | 1981 | 1974 | 1978 | 1976 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 32.5 | 34.0 | 39.4 | 38.7 | 50.1 | 60.0 | 65.8 | 64.3 | 58.3 | 51.1 | 40.0 | 30.1 | 51.4 |
| Year Lowest Occurred | 1982 | 1969 | 1962 | 1967 | 1977 | 1967 | 1983 | 1968 | 1986 | 1981 | 1964 | 1971 | 1982 |
| Mean Min. Temperature (F) | 25.9 | 28.3 | 30.7 | 35.2 | 41.6 | 48.2 | 53.5 | 52.6 | 46.6 | 38.9 | 30.7 | 25.9 | 38.2 |
| Highest Mean Min. Temperature (F) | 33.5 | 35.2 | 37.4 | 42.9 | 46.1 | 55.3 | 59.6 | 58.3 | 53.2 | 48.8 | 35.3 | 31.5 | 41.6 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1984 | 1961 | 1985 | 1961 | 1988 | 1987 | 1981 | 1980 | 1987 |
| Lowest Mean Min. Temperature (F) | 21.4 | 24.0 | 24.4 | 27.5 | 34.6 | 43.0 | 46.0 | 45.0 | 38.9 | 31.8 | 26.4 | 19.4 | 34.7 |
| Year Lowest Occurred | 1972 | 1966 | 1977 | 1967 | 1977 | 1967 | 1965 | 1976 | 1965 | 1971 | 1975 | 1971 | 1971 |
| Mean Precipitation (in.) | 6.16 | 6.05 | 5.23 | 2.95 | 1.25 | 0.70 | 0.41 | 0.31 | 0.90 | 2.10 | 5.43 | 5.56 | 37.05 |
| Highest Precipitation (in.) | 22.34 | 22.57 | 11.53 | 12.10 | 3.86 | 4.00 | 2.31 | 1.31 | 4.06 | 6.76 | 14.21 | 19.54 | 68.94 |
| Year Highest Occurred | 1969 | 1986 | 1967 | 1967 | 1971 | 1982 | 1985 | 1965 | 1978 | 1982 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.08 | 0.06 | 0.01 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 14.84 |
| Year Lowest Occurred | 1984 | 1964 | 1972 | 1977 | 1985 | 1986 | 1989 | 1988 | 1974 | 1988 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 859. | 655. | 632. | 456. | 256. | 92. | 19. | 15. | 87. | 279. | 618. | 871. | 4839. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 17. | 92. | 226. | 214. | 102. | 19. | 0. | 0. | 682. |