Rosemead, CA planting zone & frost dates
Rosemead 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 Rosemead
- 91770 zone 10b
- 91771 zone 10b
- 91772 zone 10b
Nearby cities
- Temple City zone 10a
- San Gabriel zone 10a
- South El Monte zone 10b
- El Monte zone 10b
- San Marino zone 10a
- Monterey Park zone 10b
- Alhambra zone 10a
- Arcadia zone 10a
Questions
What growing zone is Rosemead, CA?
Rosemead 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 San Gabriel Fire Dept, CA (USC00047785), 2.6 km (1.6 mi) from the city center, elevation 111 m, based on 18 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.