What plant hardiness zone is Half Moon Bay

Half Moon Bay is located at San Mateo County, California (CA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Half Moon Bay is 10a by the USDA scale.

Coldest zone's winter temperature is +30 … +35 °F.

Plants of 10a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 10a USDA.