| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.2 | 44.1 | 47.5 | 55.1 | 63.9 | 72.6 | 82.3 | 81.6 | 74.1 | 63.3 | 47.0 | 40.4 | 59.3 |
| Highest Mean Max. Temperature (F) | 48.6 | 51.2 | 56.4 | 64.7 | 70.8 | 79.6 | 87.3 | 87.8 | 81.2 | 75.0 | 59.3 | 49.5 | 61.8 |
| Year Highest Occurred | 1986 | 1977 | 1978 | 1987 | 1966 | 1961 | 1968 | 1967 | 1990 | 1988 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 35.7 | 35.7 | 41.4 | 43.4 | 55.4 | 66.8 | 75.6 | 71.5 | 64.9 | 52.7 | 39.4 | 33.5 | 56.7 |
| Year Lowest Occurred | 1969 | 1989 | 1975 | 1967 | 1977 | 1980 | 1963 | 1976 | 1986 | 1984 | 1985 | 1971 | 1982 |
| Mean Temperature (F) | 29.3 | 33.0 | 35.7 | 40.9 | 47.9 | 55.3 | 62.3 | 61.6 | 54.6 | 46.4 | 35.8 | 29.8 | 44.4 |
| Highest Mean Temperature (F) | 38.7 | 40.2 | 43.3 | 48.1 | 52.4 | 60.3 | 66.5 | 66.0 | 60.7 | 54.6 | 41.6 | 35.8 | 46.7 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1987 | 1969 | 1977 | 1985 | 1986 | 1990 | 1988 | 1976 | 1962 | 1986 |
| Lowest Mean Temperature (F) | 25.3 | 24.2 | 30.2 | 32.9 | 42.3 | 51.2 | 57.1 | 56.6 | 48.4 | 41.2 | 28.2 | 22.6 | 42.2 |
| Year Lowest Occurred | 1982 | 1989 | 1971 | 1967 | 1977 | 1980 | 1963 | 1976 | 1985 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 18.3 | 21.9 | 23.8 | 26.6 | 31.8 | 38.0 | 42.3 | 41.6 | 35.0 | 29.5 | 24.5 | 19.2 | 29.4 |
| Highest Mean Min. Temperature (F) | 28.7 | 29.6 | 30.2 | 32.1 | 36.2 | 42.4 | 46.0 | 45.3 | 41.7 | 35.1 | 28.8 | 26.3 | 31.9 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1990 | 1969 | 1977 | 1985 | 1977 | 1963 | 1979 | 1970 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 10.6 | 12.2 | 18.0 | 21.3 | 28.2 | 33.5 | 37.6 | 38.0 | 29.4 | 25.0 | 16.6 | 10.2 | 27.2 |
| Year Lowest Occurred | 1962 | 1964 | 1964 | 1970 | 1965 | 1976 | 1962 | 1980 | 1970 | 1971 | 1975 | 1990 | 1964 |
| Mean Precipitation (in.) | 2.08 | 1.68 | 1.95 | 1.31 | 1.29 | 1.29 | 0.51 | 0.79 | 0.80 | 1.47 | 2.15 | 2.47 | 17.79 |
| Highest Precipitation (in.) | 6.09 | 4.30 | 4.00 | 4.43 | 3.45 | 3.70 | 2.75 | 3.95 | 2.97 | 7.27 | 5.61 | 10.03 | 26.80 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1978 | 1977 | 1964 | 1987 | 1976 | 1977 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.27 | 0.17 | 0.04 | 0.00 | 0.06 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.30 | 8.87 |
| Year Lowest Occurred | 1984 | 1964 | 1965 | 1977 | 1965 | 1974 | 1989 | 1986 | 1987 | 1988 | 1976 | 1976 | 1989 |
| Heating Degree Days (F) | 1107. | 896. | 908. | 723. | 530. | 296. | 127. | 142. | 326. | 577. | 876. | 1091. | 7599. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 5. | 44. | 37. | 14. | 0. | 0. | 0. | 100. |