| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.6 | 51.2 | 53.7 | 60.4 | 69.4 | 78.2 | 85.9 | 85.4 | 79.7 | 70.0 | 54.6 | 48.2 | 65.4 |
| Highest Mean Max. Temperature (F) | 58.2 | 60.4 | 61.0 | 71.4 | 75.6 | 84.5 | 91.1 | 90.2 | 86.1 | 80.8 | 68.3 | 58.9 | 68.3 |
| Year Highest Occurred | 1961 | 1988 | 1986 | 1987 | 1969 | 1961 | 1961 | 1981 | 1974 | 1988 | 1976 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 41.9 | 41.0 | 46.7 | 43.9 | 57.3 | 72.3 | 80.3 | 77.2 | 70.0 | 61.0 | 43.4 | 39.6 | 62.2 |
| Year Lowest Occurred | 1973 | 1969 | 1975 | 1967 | 1977 | 1980 | 1983 | 1968 | 1986 | 1984 | 1973 | 1971 | 1971 |
| Mean Temperature (F) | 38.3 | 40.0 | 41.8 | 47.2 | 54.7 | 62.5 | 69.0 | 68.3 | 63.1 | 55.1 | 43.5 | 38.4 | 51.8 |
| Highest Mean Temperature (F) | 44.8 | 47.0 | 48.8 | 56.1 | 59.3 | 68.0 | 74.1 | 72.9 | 69.1 | 64.3 | 53.1 | 45.6 | 54.7 |
| Year Highest Occurred | 1961 | 1988 | 1986 | 1987 | 1966 | 1961 | 1988 | 1988 | 1975 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Temperature (F) | 32.7 | 32.1 | 37.5 | 35.3 | 45.5 | 57.6 | 63.3 | 62.0 | 57.2 | 48.4 | 36.7 | 30.0 | 48.4 |
| Year Lowest Occurred | 1973 | 1969 | 1975 | 1967 | 1977 | 1971 | 1983 | 1968 | 1986 | 1984 | 1973 | 1971 | 1971 |
| Mean Min. Temperature (F) | 28.0 | 28.7 | 30.0 | 34.0 | 40.0 | 46.8 | 52.0 | 51.2 | 46.5 | 40.2 | 32.3 | 28.5 | 38.2 |
| Highest Mean Min. Temperature (F) | 32.8 | 36.0 | 36.5 | 41.5 | 45.3 | 52.4 | 58.0 | 56.7 | 52.3 | 47.8 | 37.8 | 33.9 | 41.5 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1987 | 1987 | 1988 | 1988 | 1975 | 1988 | 1976 | 1980 | 1988 |
| Lowest Mean Min. Temperature (F) | 23.0 | 23.1 | 26.4 | 26.6 | 33.7 | 40.5 | 46.2 | 46.8 | 42.4 | 33.8 | 27.5 | 20.4 | 34.4 |
| Year Lowest Occurred | 1972 | 1969 | 1977 | 1967 | 1977 | 1971 | 1983 | 1968 | 1970 | 1971 | 1982 | 1971 | 1971 |
| Mean Precipitation (in.) | 11.72 | 10.31 | 9.35 | 4.66 | 2.58 | 0.99 | 0.37 | 0.77 | 1.52 | 4.55 | 10.13 | 10.22 | 67.17 |
| Highest Precipitation (in.) | 36.30 | 39.52 | 23.73 | 15.38 | 9.70 | 3.40 | 5.46 | 5.36 | 8.73 | 23.45 | 28.72 | 36.56 | 125.11 |
| Year Highest Occurred | 1969 | 1986 | 1989 | 1963 | 1990 | 1967 | 1974 | 1965 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.37 | 0.31 | 1.30 | 0.44 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.08 | 0.00 | 23.25 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1977 | 1974 | 1973 | 1990 | 1986 | 1987 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 828. | 700. | 719. | 546. | 330. | 134. | 27. | 42. | 126. | 331. | 645. | 825. | 5253. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 10. | 59. | 151. | 144. | 69. | 24. | 0. | 0. | 469. |