| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.1 | 36.4 | 39.7 | 44.9 | 52.2 | 62.6 | 72.1 | 71.3 | 62.2 | 52.3 | 38.5 | 34.0 | 49.9 |
| Highest Mean Max. Temperature (F) | 38.2 | 43.1 | 46.6 | 53.9 | 59.6 | 69.5 | 79.9 | 80.5 | 70.7 | 61.8 | 46.8 | 43.1 | 52.6 |
| Year Highest Occurred | 1984 | 1963 | 1986 | 1987 | 1973 | 1961 | 1985 | 1967 | 1974 | 1988 | 1976 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 25.9 | 27.3 | 34.2 | 38.0 | 45.0 | 56.9 | 61.6 | 64.7 | 54.0 | 44.1 | 28.9 | 26.6 | 47.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1970 | 1962 | 1980 | 1983 | 1968 | 1985 | 1984 | 1985 | 1990 | 1982 |
| Mean Temperature (F) | 26.4 | 29.2 | 31.7 | 35.6 | 41.8 | 49.9 | 57.4 | 57.1 | 50.1 | 42.0 | 31.9 | 27.4 | 40.0 |
| Highest Mean Temperature (F) | 30.9 | 35.6 | 37.0 | 41.3 | 47.2 | 54.8 | 63.2 | 63.2 | 56.3 | 49.5 | 38.3 | 34.3 | 41.9 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1973 | 1961 | 1985 | 1967 | 1967 | 1988 | 1976 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 17.2 | 20.4 | 27.4 | 30.4 | 37.7 | 45.2 | 51.6 | 52.5 | 45.0 | 36.7 | 22.2 | 19.7 | 38.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1976 | 1983 | 1975 | 1985 | 1984 | 1985 | 1990 | 1982 |
| Mean Min. Temperature (F) | 19.6 | 21.9 | 23.6 | 26.2 | 31.4 | 37.1 | 42.8 | 42.9 | 38.0 | 31.7 | 25.4 | 20.8 | 30.1 |
| Highest Mean Min. Temperature (F) | 24.0 | 28.0 | 28.1 | 29.7 | 34.7 | 41.0 | 46.4 | 46.4 | 42.6 | 37.1 | 29.7 | 25.4 | 31.5 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1989 | 1987 | 1969 | 1985 | 1977 | 1967 | 1988 | 1976 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | 8.5 | 13.5 | 19.7 | 22.3 | 28.7 | 33.4 | 39.7 | 39.3 | 33.9 | 28.5 | 15.5 | 12.1 | 28.6 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1967 | 1964 | 1976 | 1963 | 1969 | 1970 | 1971 | 1985 | 1978 | 1985 |
| Mean Precipitation (in.) | 12.22 | 9.06 | 8.24 | 5.31 | 3.55 | 2.91 | 1.12 | 1.65 | 3.20 | 5.55 | 11.50 | 12.98 | 77.29 |
| Highest Precipitation (in.) | 24.55 | 17.25 | 15.00 | 10.53 | 7.01 | 9.41 | 5.90 | 6.05 | 7.42 | 12.67 | 28.01 | 34.72 | 110.27 |
| Year Highest Occurred | 1970 | 1979 | 1971 | 1982 | 1984 | 1981 | 1983 | 1968 | 1973 | 1967 | 1973 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.36 | 2.30 | 2.32 | 0.78 | 0.99 | 0.64 | 0.00 | 0.00 | 0.00 | 0.12 | 3.54 | 2.40 | 37.88 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1982 | 1962 | 1967 | 1969 | 1975 | 1987 | 1976 | 1976 | 1989 |
| Heating Degree Days (F) | 1197. | 1002. | 1032. | 882. | 719. | 453. | 249. | 260. | 453. | 713. | 993. | 1166. | 9119. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 13. | 15. | 6. | 0. | 0. | 0. | 34. |