Norwalk, CA planting zone & frost dates
Norwalk 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 Norwalk
- 90650 zone 10b
- 90651 zone 10b
- 90652 zone 10b
Nearby cities
- Artesia zone 10a
- Bellflower zone 10b
- Santa Fe Springs zone 10b
- Cerritos zone 10a
- Downey zone 10b
- South Whittier zone 10b
- La Palma zone 10a
- La Mirada zone 10a
Questions
What growing zone is Norwalk, CA?
Norwalk 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 Fullerton Muni Ap, CA (USW00003166), 10.1 km (6.3 mi) from the city center, elevation 29 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.