Ridgecrest, CA 93549 Frost Dates
When can you plant in Ridgecrest, CA?
Typically, the last spring freeze lands around 03/11, roughly 195 days out. The first fall frost typically arrives around 11/12, about 244 frost-free days later.
The USDA Plant Hardiness Zone Map puts Ridgecrest in Zone 8b (15 to 20°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 11 weeks of growing season left in Ridgecrest before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/11 isn't a guarantee
03/11 is the middle of 30 years of NOAA records, not a promise. Plant by 02/18 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 Ridgecrest compares
About 244 days separate Ridgecrest's last and first frost, putting it 8,201 of 40,283 ZIP codes nationally. Within CA, it ranks 2,110 of 2,555.
Learn more
the frost range covers how to read the range around Ridgecrest's dates instead of trusting one. local microclimates covers what one yard in Ridgecrest can differ from the 93549 normal.