Santa Ana, CA planting zone & frost dates
Santa Ana is in USDA hardiness zone 10b. Frost is rare here: in most years temperatures do not drop to 32°F.
USDA hardiness zone10bavg. extreme winter low 35°F to 40°F
FrostRarein most years the nearest weather station records no 32°F freeze
Useful for zone 10b gardens
- Drip irrigation kit — saves water in long, hot seasons
- Shade cloth — protects plants from midday sun
- Soil moisture meter
- Plants for zone 10
As an Amazon Associate, FrostZoneMap earns from qualifying purchases, at no extra cost to you.
Hardiness zone by ZIP code in Santa Ana
- 92701 zone 10b
- 92702 zone 10b
- 92703 zone 10b
- 92704 zone 10b
- 92705 zone 10b
- 92706 zone 10b
- 92707 zone 10b
- 92711 zone 10b
- 92712 zone 10b
- 92735 zone 10b
- 92799 zone 10b
Nearby cities
- Tustin zone 10a
- Orange zone 10b
- North Tustin zone 10b
- Garden Grove zone 10b
- Irvine zone 10b
- Fountain Valley zone 10b
- Anaheim zone 10b
- Costa Mesa zone 10b
Questions
What growing zone is Santa Ana, CA?
Santa Ana is in USDA Plant Hardiness Zone 10b (average extreme winter low 35°F to 40°F), according to the USDA 2023 map.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Santa Ana Fire Stn, CA (USC00047888), 0.2 km (0.1 mi) from the city center, elevation 41 m, based on 28 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.