Pleasanton, CA 94662 Frost Dates
When can you plant in Pleasanton, CA?
Around 02/15 is the usual last spring frost, about 171 days away. The first fall frost typically arrives around 12/02, about 292 frost-free days later.
The USDA Plant Hardiness Zone Map puts Pleasanton 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
About 14 weeks of growing season left in Pleasanton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/15 isn't a guarantee
02/15 is the middle of 30 years of NOAA records, not a promise. Plant by 01/12 and you're betting against frost in roughly 9 years out of 10. 03/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Pleasanton compares
About 292 days separate Pleasanton's last and first frost, putting it 4,337 of 40,283 ZIP codes nationally. Within CA, it ranks 1,693 of 2,555.
Learn more
the frost range covers how to read the range around Pleasanton's dates instead of trusting one. local microclimates covers what one yard in Pleasanton can differ from the 94662 normal.