San Francisco Peninsula, California, from San Francisco to Redwood City has three different USDA Planting Zones 9b, 10a, and 10b, as declared by USDA update in 2023. Winter temperatures here range from 25°F to 40°F (-3.9°C to 4.4°C).
The coldest zone of SF Peninsula is USDA zone 9b (25°F to 30°F / -3.9°C to -1.1°C) which covers parts of Atherton, Menlo Park, Pescadero, Portola Valley, Redwood City, and San Mateo.
The warmest zone is USDA zone 10b (35°F to 40°F / 1.7°C to 4.4°C) here which includes Brisbane, Daly City, Pacifica, San Francisco, San Francisco County, South San Francisco, and San Mateo County.
Most towns like Belmont, Burlingame, Foster City, Half Moon Bay, Millbrae, Moss Beach, and San Carlos are in the USDA zone 10a (30°F to 35°F / -1.1°C to 1.7°C) with winter lows of 30°F to 35°F.
You can locate USDA planting zone of your city or town on California‘s San Francisco Peninsula using the interactive map or the USDA hardiness zones table provided below.
USDA Zones Map of SF Peninsula, CA
Select or type your San Francisco Peninsula, California, location in selection box below, to find its USDA Growing zone.
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USDA Planting Zone
This zone’s data comes from the United States Department of Agriculture (USDA), with the most recent zone updates released in 2023
Planting Zones
Planting Zones
Planting Zones Table of SF Peninsula, CA
San Francisco Peninsula region in California has three USDA Planting Zones from 9b to 10b. Many areas here lies in multiple USDA zones like Atherton (9b-10a), Brisbane (10a-10b), Daly City (10a-10b), Menlo Park (9b-10a), Pacifica (10a-10b), Pescadero (9b-10a), Portola Valley (9b-10a), Redwood City (9b-10a), San Francisco (10a-10b), San Francisco County (10a-10b), San Mateo (9b-10a-10b), South San Francisco (10a-10b), and San Mateo County (9b-10a-10b).
Smaller towns like Belmont, Burlingame, Foster City, Half Moon Bay, Millbrae, Moss Beach, and San Carlos are all in USDA zone 10a. The 20 USDA hardiness zone locations in San Francisco Peninsula are listed below.
| Location | USDA Hardiness Zone |
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