| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 21.6 | 27.5 | 40.1 | 57.5 | 70.9 | 79.7 | 85.8 | 83.7 | 73.0 | 61.0 | 40.9 | 26.2 | 55.7 |
| Highest Mean Max. Temperature (F) | 36.3 | 40.2 | 54.9 | 69.3 | 77.9 | 88.1 | 92.3 | 91.7 | 79.1 | 71.5 | 48.4 | 38.7 | 59.7 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1980 | 1988 | 1974 | 1976 | 1978 | 1963 | 1963 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 7.9 | 12.2 | 28.1 | 43.0 | 64.3 | 73.3 | 80.6 | 77.5 | 60.0 | 54.5 | 27.4 | 9.4 | 51.3 |
| Year Lowest Occurred | 1979 | 1979 | 1965 | 1975 | 1979 | 1969 | 1962 | 1977 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 11.4 | 17.5 | 30.5 | 45.6 | 58.3 | 67.4 | 73.3 | 71.0 | 60.5 | 49.0 | 31.6 | 16.7 | 44.4 |
| Highest Mean Temperature (F) | 26.4 | 30.9 | 41.2 | 54.0 | 65.6 | 73.8 | 77.7 | 77.3 | 67.1 | 58.9 | 38.5 | 27.0 | 48.7 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1977 | 1988 | 1974 | 1983 | 1978 | 1963 | 1981 | 1979 | 1987 |
| Lowest Mean Temperature (F) | -2.5 | 2.6 | 18.4 | 36.0 | 52.2 | 61.2 | 69.3 | 65.7 | 50.4 | 44.1 | 19.1 | 1.5 | 40.7 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1975 | 1979 | 1969 | 1962 | 1977 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 1.3 | 7.5 | 20.9 | 33.7 | 45.5 | 55.1 | 60.7 | 58.3 | 48.0 | 36.9 | 22.2 | 7.1 | 33.1 |
| Highest Mean Min. Temperature (F) | 16.5 | 22.3 | 30.2 | 39.4 | 53.2 | 60.1 | 65.6 | 64.0 | 55.1 | 46.3 | 29.1 | 17.7 | 37.7 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1977 | 1977 | 1961 | 1983 | 1983 | 1978 | 1963 | 1962 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | -13.3 | -7.0 | 8.6 | 27.5 | 38.5 | 48.8 | 56.5 | 53.9 | 40.7 | 31.3 | 10.7 | -6.4 | 30.0 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1961 | 1967 | 1982 | 1967 | 1977 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.53 | 0.57 | 1.33 | 2.26 | 2.91 | 3.07 | 2.76 | 2.78 | 1.93 | 1.55 | 0.88 | 0.55 | 21.12 |
| Highest Precipitation (in.) | 1.60 | 1.63 | 5.19 | 7.30 | 9.76 | 7.10 | 8.13 | 6.91 | 4.96 | 5.02 | 4.77 | 2.03 | 31.47 |
| Year Highest Occurred | 1969 | 1962 | 1977 | 1986 | 1965 | 1971 | 1962 | 1964 | 1986 | 1984 | 1977 | 1968 | 1977 |
| Lowest Precipitation (in.) | 0.00 | 0.09 | 0.23 | 0.16 | 0.41 | 0.55 | 0.32 | 0.14 | 0.10 | 0.11 | 0.00 | 0.00 | 8.66 |
| Year Lowest Occurred | 1974 | 1985 | 1961 | 1982 | 1976 | 1974 | 1975 | 1969 | 1972 | 1964 | 1990 | 1989 | 1976 |
| Heating Degree Days (F) | 1662. | 1330. | 1070. | 582. | 237. | 55. | 10. | 28. | 176. | 496. | 1002. | 1497. | 8145. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 29. | 127. | 267. | 214. | 41. | 0. | 0. | 0. | 678. |