Valley storms, lake-effect flurries, not much snowpack
Official climate figures come from Dayton International Airport, about 10 miles north of downtown and often cooler than the valley floor. Winters are cloudy with flurries; accumulation is usually modest. The threat is ice at eaves, freeze-thaw, and spring-to-fall thunderstorms and tornado risk typical of the Midwest, not a mountain snow load.
Historic districts next to postwar ranches
Dayton's historic neighborhoods (Oregon District, Wright-Dunbar, Dayton View, South Park, St. Anne's Hill, and others) carry Neoclassical, Queen Anne, Foursquare, Craftsman, and Prairie houses, often with complex roofs, slate or aged asphalt, and tight lots. The rest of the valley is ranches and split-levels. The city has 13 local historic districts where exterior changes can require a Certificate of Appropriateness.