Orange, CA planting zone & frost dates
Orange 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
Hardiness zone by ZIP code in Orange
- 92856 zone 10b
- 92857 zone 10b
- 92859 zone 10a
- 92862 zone 10b
- 92863 zone 10b
- 92864 zone 10b
- 92865 zone 10b
- 92866 zone 10b
- 92867 zone 10b
- 92868 zone 10b
- 92869 zone 10b
Nearby cities
- Santa Ana zone 10b
- Tustin zone 10a
- North Tustin zone 10b
- Anaheim zone 10b
- Placentia zone 10b
- Garden Grove zone 10b
- Yorba Linda zone 10a
- Fullerton zone 10b
Questions
What growing zone is Orange, CA?
Orange is in USDA Plant Hardiness Zone 10b (average extreme winter low 35°F to 40°F), according to the USDA 2023 map. Some ZIP codes of the city fall in zone 10a.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Santa Ana Fire Stn, CA (USC00047888), 5.0 km (3.1 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.