| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 50.0 | 53.0 | 54.6 | 57.0 | 60.9 | 64.8 | 67.3 | 68.6 | 68.8 | 62.9 | 54.7 | 49.8 | 59.4 |
| Highest Mean Max. Temperature (F) | 56.3 | 59.4 | 58.7 | 62.0 | 64.5 | 68.3 | 71.6 | 73.2 | 75.2 | 67.5 | 60.3 | 54.1 | 60.9 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1969 | 1978 | 1972 | 1972 | 1979 | 1978 | 1976 | 1962 | 1981 |
| Lowest Mean Max. Temperature (F) | 42.9 | 44.4 | 50.4 | 53.4 | 57.4 | 61.9 | 64.0 | 65.3 | 64.0 | 59.0 | 46.3 | 42.9 | 57.4 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1965 | 1984 | 1971 | 1975 | 1986 | 1985 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 42.9 | 45.0 | 45.7 | 47.8 | 51.7 | 55.8 | 58.3 | 59.1 | 57.6 | 52.6 | 46.9 | 43.0 | 50.5 |
| Highest Mean Temperature (F) | 48.2 | 51.3 | 49.9 | 51.8 | 54.0 | 59.8 | 61.0 | 61.4 | 61.9 | 55.6 | 49.8 | 46.9 | 52.0 |
| Year Highest Occurred | 1961 | 1963 | 1983 | 1989 | 1983 | 1969 | 1983 | 1967 | 1979 | 1979 | 1965 | 1979 | 1983 |
| Lowest Mean Temperature (F) | 37.1 | 37.5 | 42.3 | 43.8 | 48.8 | 53.0 | 56.2 | 56.5 | 53.7 | 49.6 | 39.8 | 36.8 | 48.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1965 | 1965 | 1962 | 1973 | 1970 | 1971 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 35.7 | 36.9 | 36.9 | 38.5 | 42.4 | 46.7 | 49.2 | 49.6 | 46.4 | 42.2 | 39.1 | 36.1 | 41.6 |
| Highest Mean Min. Temperature (F) | 41.4 | 43.2 | 42.2 | 42.2 | 45.5 | 53.3 | 53.2 | 52.6 | 49.8 | 47.1 | 43.4 | 42.0 | 43.7 |
| Year Highest Occurred | 1983 | 1963 | 1983 | 1990 | 1983 | 1969 | 1983 | 1977 | 1967 | 1988 | 1983 | 1966 | 1983 |
| Lowest Mean Min. Temperature (F) | 29.3 | 30.6 | 33.0 | 34.1 | 40.2 | 42.3 | 45.5 | 45.8 | 42.2 | 37.0 | 31.9 | 28.8 | 39.4 |
| Year Lowest Occurred | 1963 | 1989 | 1985 | 1967 | 1966 | 1974 | 1984 | 1988 | 1970 | 1974 | 1978 | 1985 | 1985 |
| Mean Precipitation (in.) | 13.58 | 9.94 | 10.16 | 6.05 | 4.45 | 3.20 | 1.60 | 1.75 | 3.76 | 7.12 | 13.08 | 13.93 | 88.62 |
| Highest Precipitation (in.) | 25.34 | 22.90 | 17.42 | 11.22 | 8.87 | 7.56 | 5.37 | 6.53 | 7.80 | 13.77 | 22.07 | 22.41 | 117.44 |
| Year Highest Occurred | 1964 | 1961 | 1961 | 1972 | 1977 | 1983 | 1983 | 1968 | 1977 | 1975 | 1973 | 1971 | 1971 |
| Lowest Precipitation (in.) | 0.79 | 3.22 | 1.64 | 2.34 | 1.19 | 0.69 | 0.00 | 0.07 | 0.07 | 0.62 | 2.57 | 3.88 | 61.21 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1982 | 1967 | 1967 | 1967 | 1975 | 1987 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 685. | 560. | 598. | 516. | 412. | 276. | 208. | 186. | 226. | 384. | 543. | 682. | 5276. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |