West Sacramento, CA 95832 Frost Dates
Frost dates for West Sacramento, CA, ZIP 95832
Typically, the last spring freeze lands around 02/02, roughly 158 days out. The first fall frost typically arrives around 12/02, about 301 frost-free days later.
The USDA Plant Hardiness Zone Map puts West Sacramento in Zone 9b (25 to 30°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
Zone 9b around West Sacramento has about 14 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 02/02 isn't a guarantee
02/02 is the middle of 30 years of NOAA records, not a promise. Plant by 01/02 and you're betting against frost in roughly 9 years out of 10. 03/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How West Sacramento compares
West Sacramento's growing season runs about 301 days, ranking 3,911 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,630 of 2,555.
Learn more
zone vs. frost date explains why Zone 9b and West Sacramento's frost date answer different questions, and the frost range explains how to read the range around West Sacramento's dates instead of trusting one.