| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.3 | 39.1 | 47.4 | 57.1 | 66.3 | 75.4 | 79.8 | 77.3 | 70.7 | 61.6 | 46.7 | 35.6 | 57.5 |
| Highest Mean Max. Temperature (F) | 46.9 | 48.5 | 54.8 | 67.5 | 71.1 | 79.6 | 83.8 | 81.5 | 75.9 | 67.7 | 51.5 | 49.1 | 61.2 |
| Year Highest Occurred | 1981 | 1981 | 1972 | 1981 | 1974 | 1990 | 1980 | 1980 | 1963 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 21.2 | 30.7 | 41.2 | 49.5 | 60.7 | 69.9 | 74.9 | 74.4 | 66.1 | 51.4 | 36.5 | 27.7 | 53.8 |
| Year Lowest Occurred | 1984 | 1973 | 1984 | 1983 | 1983 | 1983 | 1986 | 1968 | 1986 | 1969 | 1972 | 1978 | 1984 |
| Mean Temperature (F) | 17.0 | 23.2 | 32.1 | 40.6 | 49.4 | 58.0 | 63.3 | 61.1 | 53.4 | 43.9 | 30.3 | 19.7 | 41.0 |
| Highest Mean Temperature (F) | 28.4 | 30.4 | 38.5 | 47.4 | 53.6 | 61.2 | 66.3 | 64.8 | 59.0 | 50.5 | 35.3 | 30.0 | 44.5 |
| Year Highest Occurred | 1981 | 1970 | 1989 | 1981 | 1984 | 1981 | 1963 | 1970 | 1963 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 6.1 | 12.3 | 27.0 | 35.2 | 44.6 | 54.2 | 60.2 | 56.0 | 48.7 | 38.8 | 20.4 | 10.1 | 36.4 |
| Year Lowest Occurred | 1984 | 1974 | 1964 | 1975 | 1978 | 1975 | 1975 | 1978 | 1975 | 1969 | 1972 | 1978 | 1975 |
| Mean Min. Temperature (F) | 0.6 | 7.2 | 16.7 | 24.1 | 32.4 | 40.5 | 46.8 | 44.9 | 36.1 | 26.2 | 13.9 | 3.8 | 24.4 |
| Highest Mean Min. Temperature (F) | 11.6 | 15.7 | 24.0 | 30.0 | 37.3 | 45.6 | 49.8 | 51.4 | 42.4 | 33.2 | 19.9 | 12.2 | 29.0 |
| Year Highest Occurred | 1986 | 1986 | 1990 | 1986 | 1984 | 1988 | 1985 | 1982 | 1990 | 1963 | 1965 | 1962 | 1986 |
| Lowest Mean Min. Temperature (F) | -9.6 | -8.8 | 7.0 | 16.3 | 24.9 | 33.0 | 38.3 | 33.4 | 26.4 | 15.4 | 2.0 | -7.6 | 16.5 |
| Year Lowest Occurred | 1975 | 1974 | 1977 | 1978 | 1978 | 1978 | 1978 | 1978 | 1978 | 1975 | 1975 | 1978 | 1975 |
| Mean Precipitation (in.) | 0.27 | 0.23 | 0.40 | 0.50 | 0.67 | 0.62 | 1.56 | 1.55 | 1.03 | 0.70 | 0.46 | 0.38 | 8.37 |
| Highest Precipitation (in.) | 1.01 | 0.54 | 0.94 | 1.57 | 1.97 | 2.36 | 3.64 | 3.38 | 2.88 | 2.80 | 1.67 | 1.95 | 14.78 |
| Year Highest Occurred | 1979 | 1963 | 1979 | 1990 | 1976 | 1969 | 1973 | 1982 | 1990 | 1969 | 1986 | 1967 | 1969 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.38 | 0.14 | 0.00 | 0.00 | 0.00 | 5.23 |
| Year Lowest Occurred | 1986 | 1973 | 1977 | 1972 | 1974 | 1976 | 1987 | 1962 | 1979 | 1982 | 1989 | 1980 | 1962 |
| Heating Degree Days (F) | 1488. | 1170. | 1020. | 732. | 484. | 215. | 82. | 143. | 348. | 654. | 1041. | 1404. | 8781. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 30. | 22. | 0. | 0. | 0. | 0. | 52. |