| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.5 | 42.4 | 45.9 | 52.2 | 61.0 | 70.0 | 78.6 | 78.3 | 71.6 | 60.6 | 43.7 | 36.5 | 56.5 |
| Highest Mean Max. Temperature (F) | 44.1 | 49.1 | 53.4 | 63.3 | 67.1 | 76.5 | 83.2 | 84.9 | 80.1 | 72.3 | 52.2 | 43.2 | 59.0 |
| Year Highest Occurred | 1961 | 1977 | 1978 | 1987 | 1973 | 1961 | 1985 | 1967 | 1974 | 1988 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 32.9 | 35.2 | 40.7 | 42.4 | 51.8 | 63.5 | 71.2 | 69.6 | 64.0 | 50.1 | 36.5 | 30.6 | 53.7 |
| Year Lowest Occurred | 1969 | 1989 | 1975 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1983 |
| Mean Temperature (F) | 28.2 | 31.8 | 34.9 | 39.9 | 47.1 | 55.0 | 61.1 | 60.8 | 54.7 | 46.5 | 35.2 | 28.8 | 43.7 |
| Highest Mean Temperature (F) | 34.8 | 39.0 | 41.1 | 47.5 | 51.5 | 60.3 | 65.2 | 66.0 | 60.4 | 54.0 | 40.5 | 34.4 | 45.8 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1990 | 1973 | 1961 | 1985 | 1967 | 1967 | 1988 | 1976 | 1962 | 1986 |
| Lowest Mean Temperature (F) | 23.4 | 24.7 | 30.2 | 31.4 | 41.4 | 50.4 | 55.9 | 55.8 | 49.9 | 40.5 | 27.6 | 21.6 | 40.8 |
| Year Lowest Occurred | 1969 | 1989 | 1975 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1975 |
| Mean Min. Temperature (F) | 18.9 | 21.2 | 23.9 | 27.5 | 33.1 | 40.0 | 43.6 | 43.3 | 37.8 | 32.4 | 26.7 | 21.1 | 30.8 |
| Highest Mean Min. Temperature (F) | 26.6 | 29.7 | 29.2 | 33.5 | 36.8 | 44.1 | 47.1 | 47.0 | 42.9 | 37.3 | 30.0 | 27.6 | 33.3 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1987 | 1986 | 1985 | 1967 | 1963 | 1979 | 1965 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 12.0 | 13.7 | 16.6 | 19.2 | 28.7 | 35.2 | 40.5 | 37.7 | 32.9 | 28.2 | 18.7 | 12.5 | 27.5 |
| Year Lowest Occurred | 1962 | 1964 | 1969 | 1975 | 1975 | 1975 | 1983 | 1975 | 1970 | 1970 | 1985 | 1990 | 1975 |
| Mean Precipitation (in.) | 4.75 | 3.53 | 3.72 | 2.27 | 1.83 | 1.24 | 0.41 | 0.80 | 1.08 | 2.29 | 5.04 | 5.82 | 32.78 |
| Highest Precipitation (in.) | 9.30 | 9.18 | 7.32 | 4.89 | 3.87 | 3.29 | 4.21 | 4.27 | 3.31 | 7.25 | 11.06 | 20.53 | 45.67 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1982 | 1987 | 1976 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.45 | 0.31 | 0.15 | 0.50 | 0.23 | 0.15 | 0.00 | 0.00 | 0.00 | 0.07 | 1.07 | 0.62 | 20.53 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1976 | 1990 | 1989 | 1987 | 1987 | 1988 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1141. | 930. | 933. | 753. | 555. | 307. | 150. | 164. | 317. | 574. | 894. | 1122. | 7840. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 29. | 34. | 8. | 0. | 0. | 0. | 78. |