| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 49.1 | 52.7 | 61.5 | 71.4 | 79.3 | 86.8 | 91.6 | 90.0 | 82.1 | 72.8 | 60.1 | 50.8 | 70.7 |
| Highest Mean Max. Temperature (F) | 59.1 | 64.0 | 70.9 | 78.7 | 87.5 | 94.3 | 97.4 | 95.2 | 87.5 | 80.0 | 68.8 | 59.1 | 72.8 |
| Year Highest Occurred | 1986 | 1976 | 1967 | 1981 | 1974 | 1990 | 1980 | 1983 | 1983 | 1963 | 1965 | 1970 | 1965 |
| Lowest Mean Max. Temperature (F) | 34.4 | 37.3 | 49.2 | 62.0 | 73.9 | 80.1 | 85.7 | 83.9 | 74.0 | 65.2 | 48.2 | 35.4 | 68.3 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1973 | 1968 | 1989 | 1972 | 1971 | 1974 | 1969 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 34.5 | 38.5 | 46.2 | 55.7 | 64.4 | 73.0 | 77.9 | 76.4 | 68.7 | 58.2 | 46.1 | 37.0 | 56.4 |
| Highest Mean Temperature (F) | 42.7 | 47.3 | 52.8 | 62.6 | 70.3 | 78.9 | 82.6 | 80.7 | 73.0 | 63.4 | 52.9 | 43.1 | 58.8 |
| Year Highest Occurred | 1986 | 1976 | 1967 | 1981 | 1962 | 1990 | 1980 | 1983 | 1983 | 1963 | 1965 | 1965 | 1981 |
| Lowest Mean Temperature (F) | 24.2 | 27.8 | 37.2 | 48.5 | 59.2 | 68.7 | 74.1 | 71.9 | 61.7 | 52.1 | 37.9 | 24.6 | 54.8 |
| Year Lowest Occurred | 1979 | 1978 | 1965 | 1973 | 1976 | 1989 | 1972 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 19.9 | 24.2 | 30.9 | 39.9 | 49.5 | 59.3 | 64.2 | 62.8 | 55.2 | 43.6 | 32.0 | 23.1 | 42.1 |
| Highest Mean Min. Temperature (F) | 26.2 | 31.4 | 36.6 | 46.5 | 53.7 | 63.6 | 67.8 | 66.4 | 59.0 | 48.3 | 37.0 | 28.6 | 44.9 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1977 | 1980 | 1980 | 1982 | 1962 | 1983 | 1965 | 1965 | 1986 |
| Lowest Mean Min. Temperature (F) | 10.0 | 18.2 | 22.2 | 35.0 | 43.8 | 55.4 | 60.7 | 59.8 | 49.3 | 37.3 | 26.6 | 13.7 | 40.3 |
| Year Lowest Occurred | 1963 | 1978 | 1965 | 1973 | 1976 | 1983 | 1961 | 1971 | 1974 | 1976 | 1976 | 1983 | 1975 |
| Mean Precipitation (in.) | 0.45 | 0.61 | 1.10 | 1.13 | 2.95 | 3.67 | 2.92 | 3.09 | 2.40 | 1.72 | 0.77 | 0.41 | 21.22 |
| Highest Precipitation (in.) | 2.20 | 2.30 | 4.84 | 3.96 | 12.37 | 10.87 | 7.17 | 7.96 | 7.16 | 4.82 | 2.57 | 2.01 | 29.31 |
| Year Highest Occurred | 1968 | 1964 | 1973 | 1977 | 1982 | 1965 | 1961 | 1963 | 1985 | 1985 | 1971 | 1987 | 1977 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.43 | 0.09 | 0.54 | 0.19 | 0.00 | 0.00 | 0.00 | 9.39 |
| Year Lowest Occurred | 1986 | 1983 | 1972 | 1969 | 1984 | 1990 | 1983 | 1983 | 1977 | 1982 | 1989 | 1981 | 1970 |
| Heating Degree Days (F) | 946. | 742. | 583. | 293. | 97. | 7. | 0. | 0. | 28. | 227. | 567. | 868. | 4358. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 14. | 79. | 247. | 400. | 353. | 139. | 16. | 0. | 0. | 1248. |