Brawley, CA 92227 Frost Dates
When can you plant in Brawley, CA?
Typically, the last spring freeze lands around 01/16, roughly 141 days out. The first fall frost typically arrives around 12/19, about 335 frost-free days later.
The USDA Plant Hardiness Zone Map puts Brawley in Zone 10a (30 to 35°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 16 weeks of growing season left in Brawley before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
01/16 is the middle of 30 years of NOAA records, not a promise. Plant by 02/17 and you're betting against frost in roughly 9 years out of 10. 12/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Brawley compares
At roughly 335 frost-free days, Brawley places 2,741 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,237 of 2,555.
Learn more
zone vs. frost date covers why Zone 10a and Brawley's frost date answer different questions. the frost range covers how to read the range around Brawley's dates instead of trusting one.