Arvin, CA 93220 Frost Dates
Frost dates for Arvin, CA, ZIP 93220
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.
Arvin sits in USDA Zone 9b (25 to 30°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 9b 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
Arvin's growing season runs about 334 days, ranking 2,766 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,256 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 93220 normal.