Fallbrook, CA planting zone & frost dates
Fallbrook 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 Fallbrook
- 92028 zone 10a
- 92088 zone 10b
Nearby cities
- Temecula zone 9b
- Vista zone 10a
- Murrieta zone 9b
- Camp Pendleton South zone 10a
- Oceanside zone 10a
- Wildomar zone 9b, last frost Jan 28
- Carlsbad zone 10b, last frost Jan 23
- San Marcos zone 10a
Questions
What growing zone is Fallbrook, CA?
Fallbrook 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 Fallbrook 5 Ne, CA (USW00053151), 9.0 km (5.6 mi) from the city center, elevation 348 m, based on 13 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.