Stockton, CA 95210 Frost Dates
Frost dates for Stockton, CA, ZIP 95210
Typically, the last spring freeze lands around 02/05, roughly 161 days out. The first fall frost typically arrives around 12/08, about 305 frost-free days later.
The USDA Plant Hardiness Zone Map puts Stockton 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 Stockton has about 15 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.
How much risk comes with planting early here
02/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/11 and you're betting against frost in roughly 9 years out of 10. 12/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Stockton compares
At roughly 305 frost-free days, Stockton places 3,723 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,508 of 2,555.
Learn more
zone vs. frost date explains why Zone 9b and Stockton's frost date answer different questions, and the frost range explains how to read the range around Stockton's dates instead of trusting one.