According to the 2023 USDA Hardiness Zone Map Webster County, West Virginia is in Zones 5b (-15°F to -10°F), 6a (-10°F to -5°F) and 6b (-5°F to 0°F). There is no change from the 2012 USDA Hardiness Zone Map which has Webster County in also in Zones 5b (-15°F to -10°F), 6a (-10°F to -5°F) and 6b (-5°F to 0°F).