The ENERGY STAR Climate Zone Map shows the four climate zones used for windows and skylights: Northern, North-Central, South-Central, and Southern. Geographically speaking, the Northern Zone covers most of the country and the Southern Zone is the smallest, but the North-Central and South-Central Zones cover some major population centers. To find which climate zone includes your home, or for other information on the climate zones, please contact ENERGY STAR for Windows, Doors, and Skylights at

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