| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.0 | 48.3 | 58.2 | 66.5 | 75.1 | 83.5 | 90.3 | 88.8 | 78.8 | 65.8 | 50.1 | 40.5 | 65.5 |
| Highest Mean Max. Temperature (F) | 49.4 | 54.9 | 62.2 | 71.2 | 79.7 | 91.1 | 96.6 | 95.8 | 85.8 | 72.5 | 56.1 | 47.4 | 68.2 |
| Year Highest Occurred | 1967 | 1967 | 1983 | 1987 | 1983 | 1961 | 1985 | 1967 | 1990 | 1988 | 1990 | 1974 | 1967 |
| Lowest Mean Max. Temperature (F) | 22.8 | 34.4 | 53.2 | 61.0 | 67.1 | 77.9 | 85.1 | 82.9 | 72.6 | 61.0 | 36.7 | 27.7 | 62.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1981 | 1986 | 1968 | 1977 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 33.1 | 39.3 | 46.7 | 53.7 | 61.3 | 69.0 | 74.7 | 73.7 | 64.5 | 53.2 | 42.2 | 34.0 | 53.8 |
| Highest Mean Temperature (F) | 42.2 | 47.0 | 51.0 | 58.3 | 65.3 | 74.8 | 79.2 | 78.5 | 70.3 | 59.5 | 48.0 | 40.0 | 56.1 |
| Year Highest Occurred | 1990 | 1961 | 1983 | 1987 | 1987 | 1961 | 1985 | 1961 | 1990 | 1988 | 1990 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 16.7 | 26.2 | 43.1 | 49.0 | 55.9 | 65.1 | 71.0 | 69.6 | 59.6 | 49.9 | 29.4 | 22.8 | 50.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1976 | 1986 | 1964 | 1970 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 26.1 | 30.2 | 35.1 | 40.9 | 47.5 | 54.6 | 59.1 | 58.6 | 50.1 | 40.5 | 34.3 | 27.4 | 42.0 |
| Highest Mean Min. Temperature (F) | 36.2 | 39.1 | 39.7 | 45.3 | 52.4 | 58.5 | 63.9 | 63.4 | 54.8 | 46.4 | 39.9 | 33.5 | 44.5 |
| Year Highest Occurred | 1990 | 1961 | 1983 | 1987 | 1987 | 1961 | 1990 | 1961 | 1990 | 1988 | 1990 | 1966 | 1990 |
| Lowest Mean Min. Temperature (F) | 10.5 | 18.0 | 29.6 | 33.9 | 43.1 | 48.3 | 56.1 | 55.1 | 46.2 | 35.5 | 22.0 | 17.9 | 38.3 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1982 | 1976 | 1974 | 1969 | 1970 | 1974 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.03 | 0.70 | 0.68 | 0.46 | 0.59 | 0.38 | 0.16 | 0.38 | 0.36 | 0.53 | 1.07 | 1.15 | 7.49 |
| Highest Precipitation (in.) | 3.87 | 1.83 | 1.73 | 1.85 | 2.29 | 1.21 | 0.57 | 1.67 | 1.63 | 1.90 | 2.91 | 3.47 | 12.50 |
| Year Highest Occurred | 1969 | 1961 | 1984 | 1969 | 1962 | 1971 | 1966 | 1977 | 1980 | 1982 | 1973 | 1973 | 1980 |
| Lowest Precipitation (in.) | 0.18 | 0.00 | 0.01 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.25 | 3.78 |
| Year Lowest Occurred | 1962 | 1967 | 1964 | 1973 | 1964 | 1986 | 1989 | 1988 | 1990 | 1987 | 1976 | 1965 | 1967 |
| Heating Degree Days (F) | 989. | 720. | 567. | 339. | 140. | 27. | 0. | 8. | 94. | 366. | 684. | 961. | 4895. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 25. | 147. | 301. | 278. | 79. | 0. | 0. | 0. | 830. |