| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.2 | 50.7 | 55.6 | 60.8 | 67.8 | 74.8 | 80.9 | 81.9 | 75.9 | 64.9 | 52.2 | 45.2 | 63.0 |
| Highest Mean Max. Temperature (F) | 50.9 | 56.9 | 60.9 | 67.5 | 72.7 | 80.9 | 88.6 | 91.4 | 85.4 | 74.1 | 58.2 | 49.8 | 65.8 |
| Year Highest Occurred | 1981 | 1968 | 1986 | 1989 | 1972 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1962 | 1987 |
| Lowest Mean Max. Temperature (F) | 36.1 | 43.3 | 50.5 | 56.2 | 61.7 | 67.3 | 74.1 | 76.1 | 68.4 | 58.7 | 43.6 | 38.8 | 61.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1962 | 1980 | 1963 | 1976 | 1978 | 1984 | 1985 | 1990 | 1984 |
| Mean Temperature (F) | 38.6 | 42.5 | 46.1 | 50.0 | 55.8 | 62.1 | 66.8 | 67.2 | 61.9 | 53.1 | 44.7 | 39.1 | 52.3 |
| Highest Mean Temperature (F) | 43.3 | 48.1 | 50.6 | 55.1 | 59.4 | 66.9 | 71.7 | 72.5 | 66.9 | 58.0 | 48.1 | 43.7 | 54.5 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1989 | 1972 | 1969 | 1985 | 1967 | 1974 | 1988 | 1987 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 29.0 | 35.2 | 42.2 | 46.0 | 52.4 | 58.0 | 62.4 | 63.6 | 58.3 | 49.6 | 36.7 | 32.1 | 50.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1975 | 1977 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 31.9 | 34.3 | 36.6 | 39.1 | 43.8 | 49.4 | 52.7 | 52.4 | 47.9 | 41.1 | 37.1 | 32.9 | 41.6 |
| Highest Mean Min. Temperature (F) | 37.6 | 39.8 | 40.6 | 42.7 | 46.9 | 55.1 | 55.5 | 55.6 | 51.2 | 47.0 | 41.3 | 38.8 | 43.3 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1989 | 1987 | 1969 | 1972 | 1986 | 1979 | 1988 | 1983 | 1966 | 1986 |
| Lowest Mean Min. Temperature (F) | 21.8 | 27.1 | 33.3 | 35.0 | 40.2 | 46.0 | 49.3 | 48.1 | 44.6 | 36.6 | 27.7 | 24.7 | 39.1 |
| Year Lowest Occurred | 1979 | 1989 | 1969 | 1975 | 1964 | 1976 | 1977 | 1973 | 1965 | 1977 | 1978 | 1985 | 1985 |
| Mean Precipitation (in.) | 7.10 | 5.24 | 4.86 | 2.46 | 1.70 | 1.28 | 0.47 | 0.92 | 1.60 | 3.31 | 6.91 | 7.98 | 43.83 |
| Highest Precipitation (in.) | 14.75 | 11.77 | 8.61 | 5.30 | 3.17 | 3.33 | 2.32 | 4.02 | 3.40 | 7.23 | 15.97 | 13.59 | 61.06 |
| Year Highest Occurred | 1964 | 1983 | 1961 | 1982 | 1984 | 1984 | 1983 | 1968 | 1986 | 1975 | 1973 | 1970 | 1968 |
| Lowest Precipitation (in.) | 0.44 | 0.77 | 0.58 | 0.39 | 0.48 | 0.16 | 0.00 | 0.00 | 0.00 | 0.14 | 2.14 | 1.57 | 25.43 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1985 | 1961 | 1984 | 1986 | 1975 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 818. | 630. | 586. | 450. | 285. | 126. | 42. | 51. | 127. | 369. | 609. | 803. | 4896. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 39. | 98. | 120. | 34. | 0. | 0. | 0. | 291. |