Chowchilla, CA 95338 Frost Dates
Frost dates for Chowchilla, CA, ZIP 95338
The last spring frost here typically falls around 05/12, about 257 days from today. The first fall frost typically arrives around 11/01, about 171 frost-free days later.
Chowchilla sits in USDA Zone 9a (20 to 25°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 9a around Chowchilla has about 9 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.
The actual range around Chowchilla's last frost
05/12 is the middle of 30 years of NOAA records, not a promise. Plant by 04/18 and you're betting against frost in roughly 9 years out of 10. 06/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Chowchilla compares
About 171 days separate Chowchilla's last and first frost, putting it 28,604 of 40,283 ZIP codes nationally. Within CA, it ranks 2,377 of 2,555.
Learn more
the frost range explains how to read the range around Chowchilla's dates instead of trusting one, and local microclimates explains what one yard in Chowchilla can differ from the 95338 normal.