| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 56.1 | 61.6 | 63.8 | 67.8 | 72.6 | 78.0 | 82.5 | 82.5 | 81.5 | 75.9 | 64.6 | 56.3 | 70.3 |
| Highest Mean Max. Temperature (F) | 60.8 | 67.8 | 71.3 | 74.4 | 79.1 | 85.2 | 88.1 | 87.7 | 90.1 | 81.2 | 70.2 | 61.1 | 72.8 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1987 | 1984 | 1981 | 1984 | 1969 | 1984 | 1965 | 1986 | 1976 | 1984 |
| Lowest Mean Max. Temperature (F) | 51.3 | 54.3 | 60.4 | 56.8 | 65.4 | 71.6 | 78.8 | 78.5 | 75.9 | 70.9 | 59.2 | 50.5 | 68.4 |
| Year Lowest Occurred | 1961 | 1969 | 1967 | 1967 | 1961 | 1965 | 1966 | 1973 | 1986 | 1972 | 1972 | 1963 | 1972 |
| Mean Temperature (F) | 46.4 | 50.7 | 52.5 | 55.2 | 59.4 | 64.1 | 67.0 | 67.4 | 66.3 | 61.5 | 53.1 | 46.8 | 57.5 |
| Highest Mean Temperature (F) | 51.4 | 55.4 | 57.2 | 60.3 | 64.4 | 69.5 | 70.9 | 69.7 | 70.1 | 64.5 | 56.0 | 51.1 | 59.0 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1987 | 1981 | 1984 | 1990 | 1979 | 1987 | 1976 | 1969 | 1987 |
| Lowest Mean Temperature (F) | 43.0 | 46.4 | 49.5 | 47.4 | 54.9 | 60.1 | 64.4 | 64.4 | 62.0 | 58.7 | 49.2 | 42.4 | 56.3 |
| Year Lowest Occurred | 1972 | 1989 | 1962 | 1967 | 1961 | 1965 | 1966 | 1973 | 1986 | 1971 | 1982 | 1990 | 1975 |
| Mean Min. Temperature (F) | 36.8 | 39.7 | 41.2 | 42.6 | 46.2 | 50.2 | 51.5 | 52.2 | 51.0 | 47.0 | 41.5 | 37.2 | 44.8 |
| Highest Mean Min. Temperature (F) | 43.5 | 46.0 | 46.9 | 47.8 | 50.2 | 53.7 | 54.3 | 55.8 | 53.7 | 51.3 | 46.3 | 43.9 | 46.4 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1987 | 1981 | 1990 | 1990 | 1967 | 1987 | 1970 | 1983 | 1987 |
| Lowest Mean Min. Temperature (F) | 30.7 | 33.8 | 36.8 | 37.9 | 42.8 | 47.7 | 48.8 | 48.8 | 47.5 | 42.2 | 37.2 | 29.9 | 42.5 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1967 | 1965 | 1962 | 1982 | 1982 | 1970 | 1971 | 1985 | 1990 | 1982 |
| Mean Precipitation (in.) | 5.55 | 4.04 | 3.43 | 1.49 | 0.27 | 0.17 | 0.05 | 0.08 | 0.30 | 1.52 | 3.65 | 4.05 | 24.60 |
| Highest Precipitation (in.) | 13.34 | 15.26 | 15.04 | 4.96 | 2.34 | 2.02 | 0.95 | 0.62 | 1.77 | 7.29 | 9.70 | 9.51 | 57.80 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1967 | 1990 | 1967 | 1974 | 1976 | 1989 | 1962 | 1973 | 1981 | 1983 |
| Lowest Precipitation (in.) | 0.32 | 0.26 | 0.08 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 8.98 |
| Year Lowest Occurred | 1976 | 1964 | 1988 | 1977 | 1985 | 1990 | 1990 | 1990 | 1988 | 1978 | 1981 | 1989 | 1976 |
| Heating Degree Days (F) | 577. | 400. | 388. | 303. | 189. | 78. | 20. | 11. | 40. | 123. | 357. | 564. | 3050. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 9. | 15. | 51. | 82. | 85. | 79. | 14. | 0. | 0. | 335. |