| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.6 | 39.5 | 47.7 | 56.5 | 65.6 | 74.4 | 85.1 | 83.3 | 73.6 | 61.8 | 45.2 | 35.2 | 58.5 |
| Highest Mean Max. Temperature (F) | 41.0 | 47.5 | 55.0 | 65.9 | 72.1 | 82.8 | 89.4 | 90.1 | 81.7 | 73.2 | 53.0 | 41.1 | 61.8 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1966 | 1961 | 1985 | 1967 | 1990 | 1988 | 1976 | 1989 | 1987 |
| Lowest Mean Max. Temperature (F) | 22.9 | 29.5 | 41.6 | 48.6 | 59.2 | 68.3 | 77.5 | 75.8 | 64.5 | 53.2 | 33.7 | 22.7 | 54.2 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1984 | 1983 | 1976 | 1985 | 1984 | 1985 | 1985 | 1984 |
| Mean Temperature (F) | 23.3 | 29.4 | 36.3 | 42.8 | 50.8 | 58.0 | 66.2 | 64.2 | 55.0 | 45.0 | 33.6 | 25.1 | 44.1 |
| Highest Mean Temperature (F) | 30.1 | 36.9 | 42.3 | 49.0 | 54.9 | 63.3 | 70.7 | 69.6 | 61.4 | 53.0 | 37.4 | 31.4 | 46.3 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1969 | 1961 | 1985 | 1961 | 1990 | 1988 | 1966 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 12.5 | 18.5 | 31.0 | 36.9 | 46.2 | 54.1 | 61.1 | 59.6 | 48.9 | 39.5 | 20.9 | 11.9 | 40.3 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1983 | 1976 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 13.0 | 19.3 | 24.9 | 29.0 | 35.9 | 41.6 | 47.2 | 45.0 | 36.3 | 28.1 | 22.0 | 15.1 | 29.8 |
| Highest Mean Min. Temperature (F) | 22.0 | 26.3 | 30.7 | 33.6 | 38.5 | 45.3 | 52.0 | 50.7 | 41.5 | 33.8 | 28.0 | 23.1 | 32.0 |
| Year Highest Occurred | 1981 | 1963 | 1983 | 1989 | 1987 | 1986 | 1985 | 1961 | 1963 | 1979 | 1983 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 2.1 | 7.5 | 18.8 | 25.1 | 32.9 | 37.6 | 42.9 | 41.4 | 31.8 | 23.6 | 8.1 | 1.1 | 25.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1978 | 1976 | 1986 | 1969 | 1970 | 1969 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.99 | 0.76 | 1.01 | 0.65 | 0.98 | 0.83 | 0.40 | 0.66 | 0.56 | 0.72 | 1.25 | 1.15 | 9.96 |
| Highest Precipitation (in.) | 2.96 | 3.50 | 3.66 | 2.37 | 2.14 | 2.50 | 1.22 | 3.85 | 2.13 | 3.12 | 2.73 | 3.88 | 18.24 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1981 | 1964 | 1987 | 1976 | 1986 | 1962 | 1984 | 1981 | 1983 |
| Lowest Precipitation (in.) | 0.09 | 0.01 | 0.11 | 0.03 | 0.12 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.07 | 5.15 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1975 | 1974 | 1990 | 1969 | 1974 | 1988 | 1974 | 1989 | 1990 |
| Heating Degree Days (F) | 1293. | 997. | 890. | 666. | 440. | 224. | 58. | 103. | 315. | 620. | 942. | 1237. | 7785. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 14. | 95. | 78. | 15. | 0. | 0. | 0. | 202. |