Sebastopol, CA 95486 Frost Dates
When can you plant in Sebastopol, CA?
Typically, the last spring freeze lands around 01/29, roughly 154 days out. The first fall frost typically arrives around 12/30, about 347 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 Sebastopol, not a forecast for this year.
What to do before the first frost
About 18 weeks of growing season left in Sebastopol before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Sebastopol's last frost
01/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/17 and you're betting against frost in roughly 9 years out of 10. 12/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sebastopol compares
About 347 days separate Sebastopol's last and first frost, putting it 2,412 of 40,283 ZIP codes nationally. Within CA, it ranks 1,099 of 2,555.
Learn more
the frost range covers how to read the range around Sebastopol's dates instead of trusting one. local microclimates covers what one yard in Sebastopol can differ from the 95486 normal.