| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.0 | 56.7 | 56.9 | 58.7 | 61.8 | 64.8 | 66.6 | 66.8 | 67.3 | 64.2 | 58.7 | 54.8 | 61.0 |
| Highest Mean Max. Temperature (F) | 60.3 | 62.8 | 62.2 | 63.8 | 65.5 | 67.5 | 69.2 | 68.9 | 72.4 | 67.1 | 62.6 | 59.5 | 62.1 |
| Year Highest Occurred | 1981 | 1970 | 1978 | 1989 | 1978 | 1985 | 1988 | 1983 | 1979 | 1967 | 1989 | 1989 | 1980 |
| Lowest Mean Max. Temperature (F) | 48.5 | 51.0 | 54.0 | 54.1 | 59.5 | 61.6 | 63.9 | 63.7 | 63.5 | 60.4 | 52.3 | 49.9 | 58.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1971 | 1965 | 1965 | 1973 | 1975 | 1971 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 46.5 | 48.3 | 48.7 | 50.2 | 53.6 | 57.1 | 59.2 | 59.7 | 58.8 | 55.4 | 50.7 | 46.7 | 52.9 |
| Highest Mean Temperature (F) | 51.7 | 54.4 | 53.3 | 55.3 | 56.6 | 59.5 | 62.1 | 62.0 | 63.3 | 57.9 | 54.0 | 50.1 | 54.5 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1987 | 1989 | 1990 | 1990 | 1979 | 1979 | 1965 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 42.3 | 42.9 | 45.4 | 45.8 | 51.3 | 54.6 | 57.2 | 56.7 | 55.9 | 51.3 | 45.6 | 41.1 | 51.1 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1975 | 1974 | 1965 | 1965 | 1973 | 1965 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 38.0 | 39.8 | 40.4 | 41.7 | 45.4 | 49.4 | 51.8 | 52.6 | 50.2 | 46.5 | 42.6 | 38.6 | 44.8 |
| Highest Mean Min. Temperature (F) | 43.9 | 46.9 | 44.5 | 47.1 | 48.9 | 52.5 | 55.4 | 56.3 | 54.9 | 51.2 | 47.1 | 44.4 | 46.9 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1987 | 1986 | 1990 | 1990 | 1990 | 1979 | 1965 | 1981 | 1983 |
| Lowest Mean Min. Temperature (F) | 31.9 | 34.8 | 36.4 | 36.4 | 42.3 | 45.4 | 48.6 | 49.6 | 46.1 | 40.8 | 37.4 | 32.2 | 42.8 |
| Year Lowest Occurred | 1963 | 1989 | 1977 | 1975 | 1974 | 1962 | 1962 | 1973 | 1970 | 1974 | 1978 | 1990 | 1974 |
| Mean Precipitation (in.) | 12.29 | 10.03 | 10.87 | 5.57 | 3.40 | 1.32 | 0.37 | 1.02 | 2.04 | 5.62 | 13.08 | 13.25 | 78.86 |
| Highest Precipitation (in.) | 30.20 | 26.58 | 21.25 | 15.32 | 8.81 | 5.52 | 3.40 | 5.50 | 11.17 | 15.48 | 35.30 | 30.59 | 124.37 |
| Year Highest Occurred | 1970 | 1986 | 1972 | 1963 | 1990 | 1988 | 1983 | 1968 | 1977 | 1975 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.87 | 0.57 | 1.92 | 0.90 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.13 | 3.21 | 1.53 | 44.27 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1985 | 1966 | 1977 | 1988 | 1988 | 1974 | 1978 | 1989 | 1976 | 1976 |
| Heating Degree Days (F) | 574. | 468. | 505. | 444. | 353. | 237. | 180. | 167. | 190. | 298. | 429. | 567. | 4412. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |