Energy Efficient Windows for Maryland Climate Zone 4A Homes
What Maryland Climate Zone 4A Means For Your Windows Maryland's climate zone 4A brings a mix of humid summers, cold snaps, wind-driven rain, and plenty of shoulder-season temperature swings. A window is really part of the home's shell, and in 4A the details matter. Poorly matched windows can leave you with drafts, uneven room temperatures, and more strain on heating and cooling equipment. For many homeowners, the first clues are practical ones, not technical ones.