According to the 2023 USDA Hardiness Zone Map Old Orchard Beach, Maine is in Zones (), 6a (-10°F to -5°F) and 6b (-5°F to 0°F). This is a change from the 2012 USDA Hardiness Zone Map which has Old Orchard Beach in Zones 5b (-15°F to -10°F) and 6a (-10°F to -5°F).