| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.7 | 38.2 | 47.2 | 57.8 | 66.9 | 75.9 | 79.7 | 77.4 | 71.5 | 61.8 | 46.4 | 34.4 | 57.4 |
| Highest Mean Max. Temperature (F) | 40.8 | 46.9 | 55.5 | 65.8 | 73.4 | 80.8 | 82.9 | 81.1 | 75.8 | 67.7 | 54.6 | 48.0 | 60.4 |
| Year Highest Occurred | 1981 | 1990 | 1972 | 1981 | 1974 | 1977 | 1966 | 1969 | 1979 | 1988 | 1989 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 21.7 | 28.7 | 39.6 | 51.1 | 61.3 | 69.7 | 75.9 | 74.9 | 67.2 | 51.9 | 31.9 | 24.9 | 54.7 |
| Year Lowest Occurred | 1984 | 1966 | 1965 | 1983 | 1978 | 1983 | 1962 | 1961 | 1986 | 1969 | 1972 | 1972 | 1964 |
| Mean Temperature (F) | 14.9 | 21.4 | 30.9 | 40.4 | 49.5 | 57.8 | 63.0 | 61.0 | 53.8 | 43.8 | 29.9 | 18.1 | 40.4 |
| Highest Mean Temperature (F) | 24.2 | 29.2 | 37.6 | 46.0 | 54.5 | 61.6 | 66.9 | 65.4 | 57.2 | 47.8 | 34.8 | 28.3 | 42.6 |
| Year Highest Occurred | 1969 | 1970 | 1989 | 1981 | 1974 | 1990 | 1966 | 1969 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 3.3 | 11.7 | 23.1 | 35.4 | 44.7 | 53.7 | 58.9 | 58.3 | 49.5 | 39.0 | 19.6 | 8.0 | 37.1 |
| Year Lowest Occurred | 1984 | 1964 | 1964 | 1983 | 1978 | 1983 | 1962 | 1962 | 1961 | 1969 | 1972 | 1978 | 1964 |
| Mean Min. Temperature (F) | -1.8 | 4.6 | 14.6 | 23.0 | 32.1 | 39.6 | 46.4 | 44.5 | 36.1 | 25.7 | 13.3 | 1.8 | 23.3 |
| Highest Mean Min. Temperature (F) | 9.1 | 13.5 | 21.7 | 26.8 | 36.1 | 44.0 | 50.8 | 49.7 | 39.7 | 33.3 | 19.2 | 8.5 | 26.5 |
| Year Highest Occurred | 1969 | 1970 | 1974 | 1969 | 1969 | 1988 | 1966 | 1969 | 1990 | 1972 | 1965 | 1980 | 1969 |
| Lowest Mean Min. Temperature (F) | -15.2 | -7.4 | 6.5 | 18.7 | 26.7 | 34.7 | 41.1 | 37.8 | 31.2 | 21.5 | 5.6 | -9.2 | 19.5 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1984 | 1962 | 1963 | 1987 | 1962 | 1961 | 1982 | 1979 | 1978 | 1964 |
| Mean Precipitation (in.) | 0.22 | 0.25 | 0.41 | 0.40 | 0.52 | 0.53 | 1.30 | 1.29 | 1.00 | 0.59 | 0.42 | 0.41 | 7.34 |
| Highest Precipitation (in.) | 0.89 | 0.66 | 1.09 | 1.93 | 1.75 | 2.16 | 2.62 | 2.94 | 2.80 | 2.00 | 1.82 | 1.72 | 11.37 |
| Year Highest Occurred | 1987 | 1990 | 1980 | 1990 | 1978 | 1969 | 1968 | 1982 | 1969 | 1969 | 1986 | 1967 | 1969 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.08 | 0.12 | 0.02 | 0.00 | 0.00 | 4.67 |
| Year Lowest Occurred | 1981 | 1970 | 1978 | 1972 | 1975 | 1980 | 1987 | 1978 | 1987 | 1987 | 1989 | 1980 | 1963 |
| Heating Degree Days (F) | 1553. | 1221. | 1057. | 738. | 481. | 224. | 94. | 135. | 336. | 657. | 1053. | 1454. | 9003. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 32. | 11. | 0. | 0. | 0. | 0. | 51. |