Santa Clara County, California
Local growing conditions for Santa Clara County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 58 ZIP codes in our data.
Hardiness zones in Santa Clara County
Santa Clara County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Santa Clara County for its live forecast, frost dates, and planting calendar:
San Jose 95110
Los Altos Hills 94022
Loyola 94024
Mountain View 94040
Mountain View 94041
Mountain View 94043
Sunnyvale 94085
Sunnyvale 94086
Sunnyvale 94087
Sunnyvale 94089
Palo Alto 94301
Palo Alto 94303
Los Altos Hills 94304
Stanford 94305
Palo Alto 94306
San Jose 95002
Campbell 95008
San Jose 95013
Cupertino 95014
Gilroy 95020
Los Gatos 95030
San Jose 95032
Milpitas 95035
Morgan Hill 95037
More for California
- Agriculture in California
- Frost dates across California
- USDA hardiness zones explained
- Planting calendar by ZIP code
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.