Berkeley, CA 94710 Frost Dates
Frost dates for Berkeley, CA, ZIP 94710
The last spring frost here typically falls around 01/03, about 128 days from today. The first fall frost typically arrives around 01/01, about 365 frost-free days later.
The USDA Plant Hardiness Zone Map puts Berkeley in Zone 10a (30 to 35°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 10a around Berkeley has about 18 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 01/03 isn't a guarantee
01/03 is the middle of 30 years of NOAA records, not a promise. Plant by 02/14 and you're betting against frost in roughly 9 years out of 10. 12/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Berkeley compares
At roughly 365 frost-free days, Berkeley places 436 of 40,283 ZIP codes in this dataset. Within CA, it ranks 174 of 2,555.
Learn more
the frost range explains how to read the range around Berkeley's dates instead of trusting one, and local microclimates explains what one yard in Berkeley can differ from the 94710 normal.