Twentynine Palms, CA 92334 Frost Dates
Frost dates for Twentynine Palms, CA, ZIP 92334
Typically, the last spring freeze lands around 03/06, roughly 190 days out. The first fall frost typically arrives around 12/08, about 272 frost-free days later.
Twentynine Palms sits in USDA Zone 10a (30 to 35°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 10a around Twentynine Palms has about 15 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 03/06 isn't a guarantee
03/06 is the middle of 30 years of NOAA records, not a promise. Plant by 01/17 and you're betting against frost in roughly 9 years out of 10. 04/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Twentynine Palms compares
At roughly 272 frost-free days, Twentynine Palms places 5,339 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,844 of 2,555.
Learn more
the frost range explains how to read the range around Twentynine Palms's dates instead of trusting one, and local microclimates explains what one yard in Twentynine Palms can differ from the 92334 normal.