| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.4 | 44.2 | 53.7 | 63.7 | 72.9 | 82.6 | 91.5 | 89.5 | 79.1 | 67.3 | 49.7 | 38.0 | 64.1 |
| Highest Mean Max. Temperature (F) | 45.4 | 53.9 | 62.4 | 73.8 | 79.5 | 90.1 | 95.8 | 95.6 | 86.4 | 78.0 | 55.8 | 44.6 | 66.9 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1966 | 1961 | 1989 | 1967 | 1990 | 1988 | 1965 | 1962 | 1987 |
| Lowest Mean Max. Temperature (F) | 26.5 | 32.0 | 44.4 | 54.3 | 66.1 | 75.6 | 86.3 | 81.3 | 68.5 | 60.9 | 37.1 | 23.4 | 59.2 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1977 | 1963 | 1982 | 1968 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 28.0 | 34.4 | 41.3 | 49.1 | 57.2 | 66.1 | 73.0 | 71.2 | 61.7 | 51.4 | 39.2 | 29.4 | 50.2 |
| Highest Mean Temperature (F) | 36.3 | 42.2 | 48.5 | 55.4 | 61.3 | 73.0 | 76.2 | 77.1 | 68.8 | 60.8 | 44.0 | 36.6 | 51.9 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1989 | 1966 | 1961 | 1967 | 1961 | 1990 | 1988 | 1965 | 1981 | 1987 |
| Lowest Mean Temperature (F) | 18.5 | 22.1 | 33.6 | 42.9 | 53.5 | 61.9 | 68.8 | 66.0 | 53.5 | 45.9 | 27.4 | 13.7 | 44.5 |
| Year Lowest Occurred | 1979 | 1964 | 1985 | 1975 | 1977 | 1963 | 1986 | 1985 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 19.5 | 24.5 | 28.9 | 34.4 | 41.5 | 49.6 | 54.4 | 52.8 | 44.4 | 35.4 | 28.6 | 20.8 | 36.2 |
| Highest Mean Min. Temperature (F) | 29.7 | 31.2 | 35.9 | 42.8 | 45.5 | 55.8 | 58.8 | 60.7 | 52.0 | 43.5 | 33.2 | 28.7 | 38.0 |
| Year Highest Occurred | 1978 | 1986 | 1989 | 1989 | 1987 | 1961 | 1975 | 1961 | 1963 | 1988 | 1972 | 1981 | 1973 |
| Lowest Mean Min. Temperature (F) | 9.5 | 10.9 | 22.5 | 29.7 | 38.4 | 45.7 | 49.9 | 45.5 | 37.7 | 28.4 | 17.6 | 4.0 | 29.8 |
| Year Lowest Occurred | 1985 | 1964 | 1976 | 1970 | 1982 | 1976 | 1983 | 1985 | 1971 | 1985 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.39 | 1.04 | 0.94 | 0.76 | 0.87 | 0.81 | 0.26 | 0.38 | 0.55 | 0.66 | 1.54 | 1.37 | 10.57 |
| Highest Precipitation (in.) | 4.51 | 3.82 | 2.72 | 1.96 | 2.72 | 2.81 | 0.90 | 2.97 | 2.05 | 2.49 | 4.43 | 5.30 | 18.10 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1962 | 1963 | 1982 | 1968 | 1985 | 1975 | 1983 | 1964 | 1970 |
| Lowest Precipitation (in.) | 0.19 | 0.03 | 0.07 | 0.10 | 0.11 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 5.03 |
| Year Lowest Occurred | 1961 | 1964 | 1965 | 1969 | 1969 | 1966 | 1988 | 1988 | 1987 | 1988 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1147. | 857. | 735. | 477. | 248. | 73. | 0. | 20. | 173. | 428. | 774. | 1104. | 6036. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 106. | 251. | 212. | 74. | 6. | 0. | 0. | 655. |