| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.4 | 51.4 | 55.9 | 60.5 | 67.1 | 74.2 | 81.7 | 81.8 | 76.2 | 64.6 | 52.4 | 46.2 | 63.2 |
| Highest Mean Max. Temperature (F) | 51.7 | 58.4 | 60.0 | 66.6 | 72.3 | 79.8 | 87.4 | 90.0 | 85.1 | 72.1 | 55.5 | 51.4 | 65.4 |
| Year Highest Occurred | 1975 | 1968 | 1965 | 1989 | 1969 | 1961 | 1970 | 1967 | 1974 | 1987 | 1974 | 1974 | 1974 |
| Lowest Mean Max. Temperature (F) | 38.2 | 44.2 | 51.3 | 55.9 | 61.7 | 68.0 | 74.3 | 77.0 | 70.1 | 59.4 | 44.5 | 39.7 | 61.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1963 | 1962 | 1980 | 1983 | 1975 | 1986 | 1984 | 1985 | 1985 | 1971 |
| Mean Temperature (F) | 40.8 | 44.2 | 47.4 | 50.6 | 55.8 | 62.0 | 67.3 | 67.6 | 62.8 | 54.1 | 46.1 | 41.1 | 53.3 |
| Highest Mean Temperature (F) | 46.8 | 50.4 | 50.5 | 55.6 | 61.0 | 66.1 | 70.5 | 72.6 | 68.4 | 57.3 | 50.2 | 46.7 | 55.7 |
| Year Highest Occurred | 1975 | 1963 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1974 | 1979 | 1965 | 1974 | 1974 |
| Lowest Mean Temperature (F) | 32.5 | 35.8 | 43.8 | 46.9 | 52.3 | 58.1 | 63.1 | 64.1 | 58.3 | 50.3 | 37.6 | 33.0 | 50.7 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1977 | 1980 | 1986 | 1980 | 1985 | 1971 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 35.2 | 37.0 | 38.9 | 40.6 | 44.5 | 49.7 | 52.8 | 53.2 | 49.3 | 43.5 | 39.7 | 35.9 | 43.4 |
| Highest Mean Min. Temperature (F) | 41.9 | 43.4 | 43.2 | 45.1 | 49.7 | 56.4 | 56.3 | 56.3 | 54.0 | 49.3 | 45.2 | 41.9 | 45.9 |
| Year Highest Occurred | 1975 | 1963 | 1974 | 1974 | 1969 | 1969 | 1974 | 1990 | 1963 | 1975 | 1965 | 1974 | 1974 |
| Lowest Mean Min. Temperature (F) | 26.7 | 27.4 | 33.9 | 36.3 | 41.7 | 44.7 | 49.6 | 48.4 | 45.6 | 39.8 | 30.6 | 26.3 | 39.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1982 | 1976 | 1986 | 1980 | 1985 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 7.91 | 5.64 | 5.52 | 3.11 | 2.16 | 1.43 | 0.51 | 1.08 | 1.67 | 3.41 | 8.32 | 8.61 | 49.37 |
| Highest Precipitation (in.) | 15.09 | 14.22 | 12.46 | 6.89 | 3.95 | 3.88 | 3.00 | 5.79 | 4.65 | 8.12 | 20.48 | 20.99 | 64.01 |
| Year Highest Occurred | 1990 | 1986 | 1974 | 1982 | 1963 | 1984 | 1987 | 1968 | 1986 | 1979 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.31 | 0.86 | 0.79 | 0.49 | 0.26 | 0.07 | 0.00 | 0.00 | 0.00 | 0.11 | 1.33 | 1.24 | 33.83 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1985 | 1982 | 1987 | 1973 | 1981 | 1975 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 750. | 582. | 546. | 432. | 285. | 121. | 38. | 30. | 116. | 338. | 567. | 741. | 4546. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 31. | 109. | 110. | 50. | 0. | 0. | 0. | 300. |