Arvin, CA 93556 Frost Dates
Frost dates for Arvin, CA, ZIP 93556
Typically, the last spring freeze lands around 01/17, roughly 142 days out. The first fall frost typically arrives around 12/15, about 334 frost-free days later.
Zone 8b (15 to 20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Arvin, not a forecast for this year.
What to do before the first frost
Zone 8b around Arvin has about 16 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 01/17 isn't a guarantee
01/17 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. 12/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Arvin compares
At roughly 334 frost-free days, Arvin places 2,780 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,270 of 2,555.
Learn more
the frost range explains how to read the range around Arvin's dates instead of trusting one, and local microclimates explains what one yard in Arvin can differ from the 93556 normal.