Orinda, CA planting zone & frost dates
Orinda is in USDA hardiness zone 9b. Frost is rare here: in most years temperatures do not drop to 32°F.
USDA hardiness zone9bavg. extreme winter low 25°F to 30°F
FrostRarein most years the nearest weather station records no 32°F freeze
Useful for zone 9b gardens
- Drip irrigation kit — saves water in long, hot seasons
- Shade cloth — protects plants from midday sun
- Soil moisture meter
- Plants for zone 9
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Hardiness zone by ZIP code in Orinda
- 94563 zone 9b
Nearby cities
- Lafayette zone 9b, last frost Jan 7
- Moraga zone 9b
- Piedmont zone 10a
- Berkeley zone 10a
- Emeryville zone 10a
- Oakland zone 10a
- Walnut Creek zone 9b, last frost Jan 7
- Albany zone 10a
Questions
What growing zone is Orinda, CA?
Orinda is in USDA Plant Hardiness Zone 9b (average extreme winter low 25°F to 30°F), according to the USDA 2023 map.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Berkeley, CA (USC00040693), 7.1 km (4.4 mi) from the city center, elevation 94 m, based on 22 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.