Stockton, CA 95209 Frost Dates
When can you plant in Stockton, CA?
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.
Zone 9b (25 to 30°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 Stockton, not a forecast for this year.
What to do before the first frost
About 15 weeks of growing season left in Stockton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/05 isn't a guarantee
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
Stockton's growing season runs about 305 days, ranking 3,722 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,507 of 2,555.
Learn more
the frost range covers how to read the range around Stockton's dates instead of trusting one. local microclimates covers what one yard in Stockton can differ from the 95209 normal.