| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 50.2 | 52.8 | 53.6 | 55.2 | 58.6 | 62.0 | 64.5 | 65.3 | 65.4 | 61.2 | 54.9 | 50.5 | 57.9 |
| Highest Mean Max. Temperature (F) | 56.7 | 58.7 | 58.5 | 60.7 | 62.5 | 65.5 | 67.7 | 68.4 | 70.8 | 65.3 | 60.6 | 54.8 | 59.4 |
| Year Highest Occurred | 1981 | 1968 | 1978 | 1989 | 1987 | 1978 | 1979 | 1979 | 1979 | 1978 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 44.0 | 45.7 | 49.5 | 51.6 | 54.9 | 58.8 | 61.6 | 61.7 | 60.6 | 58.1 | 46.6 | 45.5 | 55.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1965 | 1982 | 1962 | 1986 | 1986 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 43.9 | 45.7 | 46.2 | 47.5 | 51.0 | 54.8 | 57.1 | 57.6 | 56.8 | 52.9 | 48.2 | 44.2 | 50.5 |
| Highest Mean Temperature (F) | 49.4 | 51.3 | 49.8 | 52.3 | 53.7 | 58.3 | 59.8 | 60.3 | 61.2 | 56.1 | 51.7 | 48.1 | 52.2 |
| Year Highest Occurred | 1981 | 1963 | 1987 | 1989 | 1987 | 1969 | 1979 | 1979 | 1979 | 1965 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 37.0 | 39.1 | 42.8 | 43.1 | 48.8 | 52.2 | 53.7 | 53.7 | 53.2 | 50.5 | 39.6 | 38.6 | 49.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1965 | 1962 | 1962 | 1986 | 1961 | 1971 | 1985 | 1978 | 1985 |
| Mean Min. Temperature (F) | 37.5 | 38.5 | 38.7 | 39.7 | 43.4 | 47.6 | 49.7 | 49.9 | 48.2 | 44.6 | 41.5 | 37.9 | 43.1 |
| Highest Mean Min. Temperature (F) | 42.3 | 45.0 | 43.6 | 43.9 | 46.5 | 52.4 | 52.6 | 53.1 | 52.3 | 49.1 | 46.0 | 41.7 | 45.8 |
| Year Highest Occurred | 1983 | 1963 | 1984 | 1989 | 1981 | 1969 | 1983 | 1981 | 1963 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 29.3 | 32.4 | 35.4 | 34.5 | 41.0 | 44.0 | 45.6 | 45.7 | 43.8 | 40.5 | 32.6 | 30.4 | 41.3 |
| Year Lowest Occurred | 1963 | 1989 | 1975 | 1975 | 1962 | 1962 | 1986 | 1986 | 1961 | 1974 | 1985 | 1978 | 1972 |
| Mean Precipitation (in.) | 11.11 | 8.13 | 8.24 | 4.84 | 3.50 | 2.69 | 1.04 | 1.26 | 2.63 | 5.36 | 10.87 | 12.26 | 71.93 |
| Highest Precipitation (in.) | 21.24 | 16.64 | 14.47 | 9.55 | 7.21 | 6.78 | 3.30 | 7.60 | 6.32 | 11.39 | 22.13 | 22.68 | 111.03 |
| Year Highest Occurred | 1965 | 1961 | 1961 | 1963 | 1988 | 1968 | 1974 | 1968 | 1971 | 1975 | 1973 | 1968 | 1968 |
| Lowest Precipitation (in.) | 0.68 | 2.37 | 1.35 | 1.20 | 0.66 | 0.63 | 0.00 | 0.05 | 0.03 | 0.13 | 2.06 | 2.88 | 50.06 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1982 | 1987 | 1967 | 1967 | 1975 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 654. | 540. | 583. | 525. | 434. | 306. | 245. | 229. | 246. | 375. | 504. | 645. | 5286. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |