| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.3 | 43.5 | 48.2 | 54.5 | 62.9 | 71.8 | 79.8 | 79.4 | 71.8 | 60.6 | 45.4 | 38.1 | 57.9 |
| Highest Mean Max. Temperature (F) | 46.0 | 52.0 | 55.6 | 65.2 | 69.2 | 78.8 | 87.8 | 88.2 | 80.6 | 74.3 | 51.5 | 41.7 | 62.1 |
| Year Highest Occurred | 1981 | 1977 | 1978 | 1987 | 1973 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1977 | 1987 |
| Lowest Mean Max. Temperature (F) | 32.5 | 37.0 | 41.5 | 47.5 | 55.1 | 63.6 | 71.0 | 72.0 | 63.8 | 53.8 | 38.1 | 32.2 | 54.6 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1962 | 1980 | 1983 | 1968 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 32.0 | 35.6 | 38.8 | 43.4 | 50.0 | 57.6 | 63.0 | 62.4 | 55.8 | 47.6 | 38.2 | 32.5 | 46.4 |
| Highest Mean Temperature (F) | 38.1 | 40.6 | 44.2 | 49.9 | 54.6 | 62.5 | 67.7 | 67.5 | 61.0 | 54.7 | 41.4 | 36.1 | 49.0 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1987 | 1961 | 1985 | 1967 | 1967 | 1988 | 1976 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 27.5 | 28.6 | 33.7 | 38.2 | 45.1 | 53.4 | 58.2 | 58.6 | 50.6 | 43.8 | 30.3 | 26.0 | 44.3 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1977 | 1980 | 1963 | 1968 | 1985 | 1971 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 25.8 | 27.5 | 29.4 | 32.3 | 37.0 | 43.4 | 46.1 | 45.3 | 39.8 | 34.5 | 31.0 | 26.8 | 34.9 |
| Highest Mean Min. Temperature (F) | 30.7 | 32.4 | 33.6 | 34.8 | 41.4 | 47.1 | 48.6 | 49.3 | 45.4 | 39.1 | 34.2 | 31.1 | 36.6 |
| Year Highest Occurred | 1986 | 1961 | 1983 | 1988 | 1987 | 1969 | 1990 | 1990 | 1963 | 1979 | 1983 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 19.4 | 20.1 | 25.8 | 28.9 | 34.3 | 39.1 | 43.8 | 40.5 | 36.1 | 31.0 | 22.4 | 19.7 | 32.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1964 | 1976 | 1981 | 1970 | 1970 | 1974 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 10.70 | 8.24 | 7.33 | 4.38 | 3.33 | 2.18 | 0.91 | 1.29 | 2.26 | 4.91 | 10.62 | 11.40 | 67.55 |
| Highest Precipitation (in.) | 22.73 | 20.43 | 13.81 | 7.16 | 6.56 | 6.01 | 5.03 | 5.61 | 5.72 | 10.85 | 23.46 | 33.22 | 88.00 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1988 | 1984 | 1981 | 1983 | 1968 | 1986 | 1967 | 1973 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.31 | 1.94 | 1.33 | 1.61 | 0.58 | 0.56 | 0.00 | 0.00 | 0.00 | 0.14 | 2.68 | 2.21 | 43.44 |
| Year Lowest Occurred | 1985 | 1989 | 1965 | 1966 | 1982 | 1979 | 1970 | 1969 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 1023. | 823. | 812. | 648. | 465. | 237. | 103. | 127. | 289. | 539. | 804. | 1008. | 6878. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 15. | 41. | 47. | 13. | 0. | 0. | 0. | 116. |