According to the 2023 USDA Hardiness Zone Map California Pines, California is in Zones 6b (-5°F to 0°F) and 7a (0°F to 5°F). This is a change from the 2012 USDA Hardiness Zone Map which has California Pines in Zones 6a (-10°F to -5°F), 6b (-5°F to 0°F) and 7a (0°F to 5°F).