| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 27.9 | 35.4 | 44.7 | 56.1 | 66.8 | 76.4 | 85.7 | 83.8 | 73.2 | 60.6 | 43.2 | 30.4 | 57.0 |
| Highest Mean Max. Temperature (F) | 36.9 | 46.6 | 55.0 | 66.4 | 74.2 | 84.6 | 90.0 | 88.7 | 82.7 | 71.4 | 50.0 | 37.8 | 60.0 |
| Year Highest Occurred | 1981 | 1970 | 1986 | 1987 | 1969 | 1988 | 1966 | 1981 | 1990 | 1988 | 1965 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 17.2 | 24.0 | 33.4 | 45.8 | 61.0 | 71.1 | 80.8 | 75.3 | 63.9 | 53.2 | 33.4 | 20.6 | 53.2 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1975 | 1964 | 1987 | 1968 | 1961 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 18.9 | 25.4 | 33.6 | 43.4 | 52.9 | 61.5 | 69.0 | 66.7 | 57.0 | 45.6 | 33.1 | 21.4 | 44.0 |
| Highest Mean Temperature (F) | 27.1 | 35.4 | 42.3 | 49.9 | 57.8 | 67.6 | 72.2 | 70.0 | 63.5 | 52.3 | 39.1 | 29.1 | 46.6 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1969 | 1988 | 1966 | 1983 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 8.3 | 12.3 | 23.0 | 36.1 | 48.7 | 58.0 | 66.2 | 62.0 | 50.3 | 40.7 | 25.2 | 11.2 | 40.1 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1975 | 1963 | 1987 | 1968 | 1965 | 1970 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 9.9 | 15.4 | 22.5 | 30.7 | 39.0 | 46.5 | 52.1 | 49.5 | 40.7 | 30.6 | 23.0 | 12.4 | 31.0 |
| Highest Mean Min. Temperature (F) | 18.4 | 24.9 | 29.5 | 34.6 | 43.3 | 51.1 | 54.8 | 54.7 | 46.7 | 36.7 | 28.2 | 20.5 | 33.4 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1965 | 1987 | 1977 | 1975 | 1983 | 1963 | 1963 | 1965 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | -0.6 | 0.6 | 12.6 | 26.4 | 36.3 | 44.3 | 49.5 | 46.5 | 35.7 | 26.9 | 16.9 | 1.7 | 27.0 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1982 | 1982 | 1975 | 1972 | 1974 | 1971 | 1970 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.08 | 0.94 | 1.07 | 1.15 | 1.55 | 1.28 | 0.62 | 0.84 | 0.94 | 0.98 | 1.08 | 1.09 | 12.62 |
| Highest Precipitation (in.) | 3.38 | 3.13 | 2.27 | 2.82 | 4.25 | 3.09 | 2.13 | 2.66 | 2.76 | 2.49 | 3.20 | 3.18 | 19.63 |
| Year Highest Occurred | 1969 | 1986 | 1989 | 1978 | 1981 | 1984 | 1983 | 1972 | 1961 | 1974 | 1988 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.06 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.60 |
| Year Lowest Occurred | 1963 | 1964 | 1969 | 1961 | 1961 | 1961 | 1988 | 1966 | 1987 | 1988 | 1976 | 1989 | 1966 |
| Heating Degree Days (F) | 1429. | 1109. | 973. | 648. | 375. | 144. | 11. | 57. | 262. | 601. | 957. | 1352. | 7918. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 39. | 135. | 110. | 22. | 0. | 0. | 0. | 306. |