According to the 2023 USDA Hardiness Zone Map Van Buren, Maine is in Zones (), 3b (-35°F to -30°F) and 4a (-30°F to -25°F). This is a change from the 2012 USDA Hardiness Zone Map which has Van Buren in Zones 3b (-35°F to -30°F) and 4a (-30°F to -25°F).