| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.7 | 53.1 | 57.9 | 64.1 | 72.6 | 80.8 | 88.5 | 88.1 | 81.3 | 68.9 | 52.7 | 45.9 | 66.7 |
| Highest Mean Max. Temperature (F) | 50.5 | 60.1 | 64.1 | 73.0 | 78.8 | 86.0 | 95.2 | 96.7 | 90.6 | 79.6 | 57.1 | 50.1 | 69.4 |
| Year Highest Occurred | 1986 | 1988 | 1986 | 1987 | 1969 | 1987 | 1972 | 1967 | 1974 | 1988 | 1986 | 1977 | 1988 |
| Lowest Mean Max. Temperature (F) | 41.5 | 47.1 | 53.0 | 55.1 | 63.6 | 72.3 | 79.7 | 80.0 | 72.3 | 62.6 | 47.6 | 42.2 | 64.4 |
| Year Lowest Occurred | 1969 | 1969 | 1975 | 1967 | 1977 | 1980 | 1983 | 1976 | 1978 | 1975 | 1985 | 1990 | 1983 |
| Mean Temperature (F) | 39.2 | 43.2 | 46.1 | 50.0 | 56.6 | 63.8 | 69.1 | 68.6 | 62.6 | 53.9 | 44.6 | 39.3 | 53.1 |
| Highest Mean Temperature (F) | 44.3 | 49.2 | 51.4 | 55.8 | 61.2 | 67.9 | 73.2 | 73.4 | 66.9 | 59.2 | 47.2 | 44.2 | 55.0 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1969 | 1977 | 1972 | 1986 | 1974 | 1988 | 1987 | 1981 | 1986 |
| Lowest Mean Temperature (F) | 34.4 | 37.5 | 43.1 | 44.3 | 51.2 | 58.6 | 64.5 | 65.6 | 58.7 | 49.6 | 39.4 | 33.4 | 51.2 |
| Year Lowest Occurred | 1963 | 1989 | 1971 | 1967 | 1977 | 1980 | 1983 | 1976 | 1961 | 1969 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 31.7 | 33.2 | 34.3 | 36.0 | 40.6 | 46.6 | 49.7 | 49.0 | 43.9 | 39.0 | 36.6 | 32.7 | 39.4 |
| Highest Mean Min. Temperature (F) | 38.0 | 39.8 | 39.2 | 39.9 | 43.6 | 51.0 | 52.9 | 52.9 | 47.1 | 45.1 | 39.7 | 38.7 | 41.8 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1990 | 1969 | 1977 | 1990 | 1977 | 1977 | 1979 | 1983 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 23.5 | 25.5 | 29.6 | 32.0 | 38.5 | 42.4 | 46.5 | 44.1 | 39.2 | 34.0 | 30.9 | 24.5 | 37.8 |
| Year Lowest Occurred | 1963 | 1989 | 1969 | 1975 | 1976 | 1962 | 1966 | 1970 | 1965 | 1974 | 1978 | 1990 | 1964 |
| Mean Precipitation (in.) | 10.47 | 8.01 | 7.58 | 3.49 | 1.95 | 0.58 | 0.19 | 0.66 | 1.34 | 3.99 | 10.31 | 11.07 | 59.64 |
| Highest Precipitation (in.) | 24.81 | 22.57 | 19.32 | 13.10 | 9.15 | 2.35 | 1.40 | 3.69 | 6.47 | 11.22 | 30.13 | 30.16 | 103.12 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1982 | 1990 | 1988 | 1983 | 1968 | 1977 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.53 | 0.13 | 0.72 | 0.27 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.87 | 1.16 | 29.42 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1973 | 1982 | 1962 | 1988 | 1988 | 1987 | 1978 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 800. | 610. | 586. | 450. | 264. | 93. | 24. | 25. | 113. | 344. | 612. | 797. | 4718. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 57. | 151. | 136. | 41. | 0. | 0. | 0. | 385. |