| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 28.4 | 36.7 | 45.8 | 57.0 | 66.2 | 74.5 | 81.9 | 82.3 | 72.1 | 56.6 | 38.1 | 27.7 | 55.6 |
| Highest Mean Max. Temperature (F) | 35.9 | 42.8 | 50.8 | 65.9 | 73.7 | 83.7 | 90.2 | 90.4 | 81.4 | 64.7 | 43.6 | 33.8 | 59.3 |
| Year Highest Occurred | 1967 | 1967 | 1981 | 1977 | 1969 | 1970 | 1985 | 1967 | 1967 | 1987 | 1987 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 16.8 | 30.7 | 38.3 | 51.4 | 59.9 | 66.7 | 74.4 | 74.2 | 63.3 | 50.6 | 26.5 | 18.8 | 52.9 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1981 | 1983 | 1976 | 1978 | 1984 | 1985 | 1983 | 1984 |
| Mean Temperature (F) | 20.0 | 26.6 | 34.8 | 43.7 | 52.5 | 60.3 | 66.0 | 65.9 | 56.1 | 43.3 | 30.6 | 20.3 | 43.3 |
| Highest Mean Temperature (F) | 29.1 | 32.5 | 39.1 | 49.4 | 57.2 | 66.4 | 72.0 | 71.9 | 63.1 | 49.9 | 36.3 | 28.7 | 46.7 |
| Year Highest Occurred | 1981 | 1987 | 1981 | 1977 | 1969 | 1969 | 1985 | 1986 | 1990 | 1988 | 1987 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 6.5 | 19.9 | 25.0 | 37.3 | 48.8 | 52.2 | 61.0 | 60.7 | 48.8 | 37.4 | 18.6 | 9.9 | 39.8 |
| Year Lowest Occurred | 1969 | 1985 | 1971 | 1972 | 1984 | 1971 | 1983 | 1976 | 1971 | 1971 | 1985 | 1983 | 1971 |
| Mean Min. Temperature (F) | 11.5 | 16.4 | 23.7 | 30.4 | 38.7 | 46.1 | 50.2 | 49.6 | 40.0 | 30.1 | 23.1 | 12.9 | 31.1 |
| Highest Mean Min. Temperature (F) | 23.3 | 23.6 | 28.6 | 35.0 | 42.0 | 51.2 | 55.0 | 54.7 | 45.3 | 36.2 | 29.1 | 23.6 | 34.1 |
| Year Highest Occurred | 1981 | 1987 | 1983 | 1990 | 1980 | 1969 | 1975 | 1986 | 1990 | 1988 | 1989 | 1979 | 1987 |
| Lowest Mean Min. Temperature (F) | -3.9 | 8.6 | 11.6 | 22.6 | 36.1 | 36.1 | 44.9 | 43.3 | 30.6 | 22.0 | 10.7 | 1.0 | 24.7 |
| Year Lowest Occurred | 1969 | 1985 | 1971 | 1971 | 1965 | 1971 | 1971 | 1970 | 1971 | 1970 | 1985 | 1983 | 1971 |
| Mean Precipitation (in.) | 4.23 | 2.47 | 1.71 | 1.08 | 0.99 | 0.84 | 0.69 | 0.85 | 1.01 | 1.63 | 3.25 | 4.44 | 23.19 |
| Highest Precipitation (in.) | 8.39 | 7.65 | 4.58 | 2.72 | 2.36 | 2.02 | 2.06 | 3.08 | 2.44 | 7.58 | 7.96 | 8.17 | 40.11 |
| Year Highest Occurred | 1974 | 1961 | 1972 | 1962 | 1990 | 1984 | 1982 | 1976 | 1985 | 1967 | 1990 | 1979 | 1961 |
| Lowest Precipitation (in.) | 0.43 | 0.52 | 0.35 | 0.00 | 0.20 | 0.08 | 0.00 | 0.00 | 0.00 | 0.01 | 0.64 | 0.68 | 12.83 |
| Year Lowest Occurred | 1977 | 1988 | 1969 | 1973 | 1979 | 1976 | 1971 | 1985 | 1976 | 1987 | 1976 | 1985 | 1976 |
| Heating Degree Days (F) | 1395. | 1075. | 936. | 639. | 388. | 192. | 70. | 83. | 291. | 673. | 1032. | 1386. | 8160. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 51. | 101. | 111. | 24. | 0. | 0. | 0. | 287. |