| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 24.7 | 30.4 | 35.9 | 44.8 | 56.1 | 67.3 | 77.2 | 75.5 | 64.8 | 52.4 | 35.5 | 25.5 | 49.2 |
| Highest Mean Max. Temperature (F) | 35.7 | 38.5 | 43.5 | 59.1 | 63.1 | 77.8 | 83.3 | 83.1 | 75.3 | 63.5 | 41.5 | 34.9 | 53.3 |
| Year Highest Occurred | 1981 | 1963 | 1981 | 1987 | 1987 | 1988 | 1988 | 1971 | 1990 | 1988 | 1965 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 16.7 | 23.5 | 28.2 | 35.3 | 47.8 | 61.4 | 71.2 | 67.8 | 54.0 | 45.4 | 27.4 | 18.0 | 45.5 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1975 | 1964 | 1986 | 1968 | 1965 | 1969 | 1985 | 1978 | 1975 |
| Mean Temperature (F) | 11.1 | 15.1 | 21.1 | 31.1 | 41.2 | 50.4 | 57.4 | 55.4 | 45.9 | 35.5 | 22.4 | 11.7 | 33.2 |
| Highest Mean Temperature (F) | 17.7 | 23.9 | 28.0 | 37.6 | 46.8 | 55.9 | 59.6 | 61.6 | 52.5 | 41.0 | 28.2 | 20.4 | 36.1 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1987 | 1988 | 1985 | 1971 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 1.3 | 5.2 | 12.3 | 24.4 | 35.3 | 47.0 | 53.7 | 50.8 | 39.2 | 29.3 | 16.1 | 1.8 | 30.3 |
| Year Lowest Occurred | 1979 | 1985 | 1965 | 1975 | 1975 | 1975 | 1986 | 1975 | 1965 | 1984 | 1979 | 1990 | 1975 |
| Mean Min. Temperature (F) | -2.5 | -0.2 | 6.3 | 17.4 | 26.2 | 33.5 | 37.5 | 35.4 | 26.9 | 18.6 | 9.3 | -2.3 | 17.2 |
| Highest Mean Min. Temperature (F) | 8.8 | 11.5 | 13.9 | 23.2 | 30.9 | 37.5 | 41.0 | 41.4 | 32.6 | 23.2 | 14.9 | 5.9 | 20.3 |
| Year Highest Occurred | 1967 | 1986 | 1972 | 1969 | 1981 | 1977 | 1975 | 1983 | 1963 | 1963 | 1983 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -14.1 | -14.3 | -6.5 | 12.5 | 22.8 | 30.7 | 32.8 | 28.4 | 21.5 | 11.9 | -0.5 | -15.6 | 14.1 |
| Year Lowest Occurred | 1979 | 1985 | 1965 | 1982 | 1986 | 1975 | 1988 | 1988 | 1988 | 1987 | 1979 | 1990 | 1985 |
| Mean Precipitation (in.) | 3.65 | 2.61 | 2.24 | 1.96 | 2.33 | 2.34 | 1.42 | 1.66 | 1.94 | 1.81 | 2.87 | 3.51 | 28.34 |
| Highest Precipitation (in.) | 8.38 | 8.55 | 3.99 | 4.22 | 4.75 | 6.31 | 3.45 | 3.79 | 4.15 | 3.93 | 5.95 | 9.35 | 41.54 |
| Year Highest Occurred | 1970 | 1986 | 1971 | 1975 | 1980 | 1969 | 1985 | 1968 | 1961 | 1983 | 1988 | 1977 | 1970 |
| Lowest Precipitation (in.) | 0.42 | 0.85 | 0.79 | 0.70 | 1.13 | 0.32 | 0.28 | 0.17 | 0.03 | 0.20 | 0.35 | 0.70 | 18.56 |
| Year Lowest Occurred | 1961 | 1964 | 1969 | 1977 | 1972 | 1988 | 1974 | 1988 | 1987 | 1987 | 1976 | 1986 | 1966 |
| Heating Degree Days (F) | 1671. | 1397. | 1361. | 1017. | 738. | 438. | 236. | 304. | 573. | 915. | 1278. | 1652. | 11580. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 7. | 0. | 0. | 0. | 0. | 7. |