Lodi, CA 95237 Frost Dates
Frost dates for Lodi, CA, ZIP 95237
Typically, the last spring freeze lands around 02/09, roughly 165 days out. The first fall frost typically arrives around 12/05, about 301 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 Lodi, not a forecast for this year.
What to do before the first frost
Zone 9b around Lodi 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 02/09 isn't a guarantee
02/09 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. 03/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lodi compares
At roughly 301 frost-free days, Lodi places 3,893 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,616 of 2,555.
Learn more
local microclimates explains what one yard in Lodi can differ from the 95237 normal, and zone vs. frost date explains why Zone 9b and Lodi's frost date answer different questions.