| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.1 | 58.4 | 62.0 | 68.0 | 77.5 | 86.5 | 94.6 | 93.2 | 86.4 | 75.4 | 60.3 | 53.6 | 72.5 |
| Highest Mean Max. Temperature (F) | 59.5 | 66.6 | 67.9 | 77.2 | 84.2 | 91.4 | 98.6 | 99.8 | 92.6 | 81.3 | 68.6 | 59.5 | 74.2 |
| Year Highest Occurred | 1984 | 1988 | 1988 | 1987 | 1973 | 1981 | 1968 | 1967 | 1974 | 1988 | 1986 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.8 | 48.6 | 57.4 | 54.1 | 68.5 | 81.3 | 84.5 | 85.5 | 77.9 | 69.0 | 54.7 | 48.0 | 69.6 |
| Year Lowest Occurred | 1969 | 1969 | 1962 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1968 | 1983 |
| Mean Temperature (F) | 42.6 | 46.2 | 49.0 | 53.0 | 60.4 | 68.1 | 74.1 | 73.1 | 67.0 | 58.9 | 48.2 | 42.9 | 57.0 |
| Highest Mean Temperature (F) | 46.8 | 51.8 | 54.5 | 59.6 | 64.6 | 72.8 | 78.0 | 77.2 | 70.7 | 63.3 | 52.3 | 46.8 | 58.9 |
| Year Highest Occurred | 1984 | 1963 | 1986 | 1987 | 1987 | 1977 | 1988 | 1967 | 1975 | 1987 | 1986 | 1981 | 1986 |
| Lowest Mean Temperature (F) | 39.4 | 41.1 | 45.1 | 42.7 | 54.2 | 62.9 | 68.5 | 68.8 | 52.2 | 55.3 | 43.9 | 37.9 | 54.3 |
| Year Lowest Occurred | 1973 | 1969 | 1967 | 1967 | 1977 | 1980 | 1983 | 1976 | 1982 | 1984 | 1985 | 1972 | 1982 |
| Mean Min. Temperature (F) | 31.0 | 34.0 | 35.8 | 38.0 | 43.2 | 49.7 | 53.7 | 53.0 | 47.6 | 42.2 | 36.1 | 32.2 | 41.4 |
| Highest Mean Min. Temperature (F) | 37.8 | 40.8 | 42.0 | 43.1 | 47.7 | 54.5 | 58.6 | 57.4 | 52.4 | 46.8 | 40.9 | 39.7 | 44.2 |
| Year Highest Occurred | 1970 | 1986 | 1978 | 1990 | 1987 | 1985 | 1985 | 1986 | 1983 | 1983 | 1970 | 1983 | 1986 |
| Lowest Mean Min. Temperature (F) | 23.8 | 28.1 | 31.9 | 31.2 | 39.8 | 44.5 | 48.5 | 46.8 | 22.0 | 37.6 | 29.8 | 24.9 | 37.8 |
| Year Lowest Occurred | 1975 | 1974 | 1977 | 1967 | 1977 | 1980 | 1966 | 1982 | 1982 | 1974 | 1974 | 1990 | 1982 |
| Mean Precipitation (in.) | 6.69 | 4.86 | 4.31 | 1.80 | 0.45 | 0.17 | 0.04 | 0.14 | 0.47 | 1.87 | 4.86 | 5.59 | 31.25 |
| Highest Precipitation (in.) | 17.46 | 19.63 | 18.59 | 5.56 | 2.10 | 2.04 | 0.66 | 1.63 | 2.02 | 7.71 | 14.09 | 14.29 | 79.35 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1967 | 1974 | 1968 | 1989 | 1962 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.24 | 0.13 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 9.96 |
| Year Lowest Occurred | 1976 | 1964 | 1988 | 1987 | 1987 | 1987 | 1990 | 1990 | 1988 | 1986 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 694. | 526. | 496. | 373. | 170. | 28. | 0. | 0. | 82. | 203. | 504. | 685. | 3761. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 27. | 121. | 287. | 255. | 142. | 14. | 0. | 0. | 859. |