| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.7 | 43.4 | 49.7 | 57.8 | 67.1 | 76.5 | 85.8 | 84.7 | 74.1 | 63.2 | 48.5 | 39.2 | 60.6 |
| Highest Mean Max. Temperature (F) | 43.1 | 51.4 | 58.0 | 69.3 | 73.5 | 84.7 | 90.7 | 90.9 | 82.1 | 73.6 | 53.7 | 45.4 | 63.5 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1966 | 1986 | 1985 | 1967 | 1990 | 1988 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 27.7 | 34.4 | 43.5 | 48.0 | 59.5 | 68.6 | 79.5 | 77.4 | 66.3 | 55.9 | 39.8 | 29.8 | 57.6 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1964 | 1983 | 1968 | 1985 | 1969 | 1985 | 1985 | 1984 |
| Mean Temperature (F) | 28.3 | 33.5 | 38.4 | 44.9 | 53.1 | 61.4 | 69.0 | 67.9 | 57.8 | 47.9 | 37.2 | 29.1 | 47.4 |
| Highest Mean Temperature (F) | 34.7 | 40.8 | 45.3 | 52.7 | 58.3 | 68.3 | 74.4 | 73.3 | 65.2 | 56.3 | 41.6 | 35.4 | 49.4 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1971 | 1990 | 1988 | 1965 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 17.1 | 24.9 | 32.9 | 38.3 | 47.6 | 56.8 | 64.4 | 62.0 | 51.9 | 42.9 | 29.1 | 18.2 | 44.6 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1963 | 1983 | 1976 | 1985 | 1969 | 1985 | 1990 | 1984 |
| Mean Min. Temperature (F) | 18.9 | 23.5 | 27.0 | 31.9 | 39.0 | 46.3 | 52.1 | 51.0 | 41.5 | 32.5 | 25.8 | 18.8 | 34.0 |
| Highest Mean Min. Temperature (F) | 26.5 | 30.2 | 32.6 | 37.5 | 43.9 | 51.8 | 58.0 | 55.7 | 48.3 | 38.9 | 30.7 | 26.4 | 36.0 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1990 | 1987 | 1986 | 1985 | 1971 | 1990 | 1988 | 1966 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 6.4 | 15.4 | 20.2 | 27.1 | 35.1 | 41.6 | 46.1 | 45.9 | 35.1 | 29.0 | 18.4 | 6.1 | 31.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1974 | 1980 | 1962 | 1962 | 1970 | 1970 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.13 | 0.86 | 0.95 | 1.01 | 1.05 | 1.24 | 0.33 | 0.66 | 0.58 | 0.81 | 1.16 | 1.14 | 10.92 |
| Highest Precipitation (in.) | 3.68 | 3.40 | 2.28 | 3.22 | 3.77 | 4.30 | 1.08 | 3.72 | 2.46 | 3.00 | 2.79 | 3.94 | 16.09 |
| Year Highest Occurred | 1969 | 1986 | 1974 | 1973 | 1980 | 1967 | 1975 | 1968 | 1980 | 1975 | 1988 | 1964 | 1980 |
| Lowest Precipitation (in.) | 0.00 | 0.06 | 0.09 | 0.07 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.04 | 6.22 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1961 | 1974 | 1979 | 1972 | 1969 | 1987 | 1988 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1138. | 882. | 825. | 603. | 369. | 164. | 32. | 61. | 246. | 530. | 834. | 1113. | 6797. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 56. | 156. | 151. | 30. | 0. | 0. | 0. | 393. |