Contra Costa County, California, CA, USA plant hardiness zones (gardening zones)

Plant hardiness zones (winter frost zones or gardening zones) range for Contra Costa County, California (CA), USA is:

• 9b
• 10a

by the USDA scale.

• coldest zone's winter temperature: +25 … +30 °F

• warmest zone's winter temperature: +30 … +35 °F

Cities of Contra Costa County, California (CA), USA

• AlamoUSDA hardiness zone: 9b
• AntiochUSDA hardiness zone: 9b
• Bay PointUSDA hardiness zone: 9b
• BayviewUSDA hardiness zone: 10a
• Bethel IslandUSDA hardiness zone: 9b
• BlackhawkUSDA hardiness zone: 9b
• BrentwoodUSDA hardiness zone: 9b
• ByronUSDA hardiness zone: 9b
• ClaytonUSDA hardiness zone: 9b
• ClydeUSDA hardiness zone: 9b
• ConcordUSDA hardiness zone: 9b
• CrockettUSDA hardiness zone: 9b
• DanvilleUSDA hardiness zone: 9b
• DiabloUSDA hardiness zone: 9b
• Discovery BayUSDA hardiness zone: 9b
• East Richmond HeightsUSDA hardiness zone: 10a
• El CerritoUSDA hardiness zone: 10a
• El SobranteUSDA hardiness zone: 10a
• HerculesUSDA hardiness zone: 9b
• KensingtonUSDA hardiness zone: 10a
• KnightsenUSDA hardiness zone: 9b
• LafayetteUSDA hardiness zone: 9b
• MartinezUSDA hardiness zone: 9b
• MontalvinUSDA hardiness zone: 9b
• MoragaUSDA hardiness zone: 9b
• North RichmondUSDA hardiness zone: 10a
• OakleyUSDA hardiness zone: 9b
• OrindaUSDA hardiness zone: 9b
• PachecoUSDA hardiness zone: 9b
• PinoleUSDA hardiness zone: 10a
• PittsburgUSDA hardiness zone: 9b
• Pleasant HillUSDA hardiness zone: 9b
• Port CostaUSDA hardiness zone: 9b
• RichmondUSDA hardiness zone: 10a
• RodeoUSDA hardiness zone: 9b
• RollingwoodUSDA hardiness zone: 10a
• San PabloUSDA hardiness zone: 10a
• San RamonUSDA hardiness zone: 9b
• SaranapUSDA hardiness zone: 9b
• Tara HillsUSDA hardiness zone: 10a
• Vine HillUSDA hardiness zone: 9b
• WaldonUSDA hardiness zone: 9b
• Walnut CreekUSDA hardiness zone: 9b
• West PittsburgUSDA hardiness zone: 9b