| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.3 | 50.6 | 55.5 | 60.3 | 67.1 | 73.6 | 79.7 | 80.2 | 74.8 | 64.2 | 52.3 | 45.5 | 62.4 |
| Highest Mean Max. Temperature (F) | 51.8 | 56.5 | 61.1 | 66.8 | 72.2 | 80.6 | 86.5 | 90.3 | 82.1 | 73.0 | 56.7 | 50.7 | 65.1 |
| Year Highest Occurred | 1981 | 1968 | 1986 | 1989 | 1972 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 37.4 | 42.5 | 50.4 | 54.6 | 59.5 | 67.5 | 72.6 | 74.8 | 69.8 | 59.6 | 43.3 | 39.2 | 60.7 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1963 | 1962 | 1980 | 1963 | 1975 | 1970 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 38.9 | 42.6 | 46.0 | 49.6 | 55.1 | 61.4 | 65.8 | 65.8 | 60.7 | 52.4 | 44.6 | 39.4 | 51.9 |
| Highest Mean Temperature (F) | 43.1 | 47.3 | 50.8 | 54.5 | 58.8 | 66.0 | 69.7 | 71.8 | 64.8 | 57.1 | 48.0 | 44.1 | 53.7 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1989 | 1987 | 1961 | 1985 | 1967 | 1974 | 1988 | 1983 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 30.1 | 34.8 | 42.8 | 45.5 | 51.3 | 57.3 | 61.5 | 61.9 | 56.9 | 49.8 | 36.5 | 33.1 | 50.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1964 | 1970 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 32.5 | 34.5 | 36.4 | 38.8 | 43.1 | 49.2 | 51.8 | 51.4 | 46.6 | 40.6 | 36.9 | 33.2 | 41.3 |
| Highest Mean Min. Temperature (F) | 37.8 | 40.0 | 41.2 | 42.2 | 46.6 | 55.3 | 54.3 | 55.3 | 51.5 | 45.9 | 42.0 | 38.4 | 43.0 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1989 | 1987 | 1969 | 1972 | 1961 | 1990 | 1988 | 1983 | 1966 | 1961 |
| Lowest Mean Min. Temperature (F) | 22.5 | 27.0 | 32.4 | 34.5 | 39.1 | 44.7 | 49.0 | 47.0 | 42.5 | 37.6 | 29.4 | 25.0 | 38.4 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1964 | 1965 | 1962 | 1980 | 1965 | 1974 | 1978 | 1985 | 1985 |
| Mean Precipitation (in.) | 5.87 | 4.25 | 4.02 | 2.15 | 1.62 | 1.39 | 0.54 | 1.07 | 1.51 | 2.82 | 5.74 | 6.59 | 37.57 |
| Highest Precipitation (in.) | 11.72 | 10.11 | 8.32 | 4.27 | 3.75 | 4.38 | 2.81 | 3.84 | 3.46 | 5.75 | 12.76 | 11.01 | 51.78 |
| Year Highest Occurred | 1970 | 1983 | 1961 | 1982 | 1984 | 1984 | 1983 | 1968 | 1982 | 1975 | 1973 | 1968 | 1968 |
| Lowest Precipitation (in.) | 0.32 | 0.38 | 0.50 | 0.47 | 0.39 | 0.12 | 0.00 | 0.00 | 0.00 | 0.11 | 0.87 | 1.54 | 23.86 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1966 | 1982 | 1962 | 1984 | 1986 | 1975 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 809. | 627. | 589. | 462. | 307. | 137. | 55. | 79. | 149. | 391. | 612. | 794. | 5011. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 29. | 80. | 103. | 20. | 0. | 0. | 0. | 232. |