Goleta, CA 93121 Frost Dates
Frost dates for Goleta, CA, ZIP 93121
Around 12/31 is the usual last spring frost, about 125 days away. The first fall frost typically arrives around 12/20, about 365 frost-free days later.
The USDA Plant Hardiness Zone Map puts Goleta in Zone 10b (35 to 40°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 10b around Goleta has about 16 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.
The actual range around Goleta's last frost
12/31 is the middle of 30 years of NOAA records, not a promise. Plant by 01/29 and you're betting against frost in roughly 9 years out of 10. 12/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Goleta compares
About 365 days separate Goleta's last and first frost, putting it 1,039 of 40,283 ZIP codes nationally. Within CA, it ranks 452 of 2,555.
Learn more
the frost range explains how to read the range around Goleta's dates instead of trusting one, and local microclimates explains what one yard in Goleta can differ from the 93121 normal.