Hollister, CA 95075 Frost Dates
When can you plant in Hollister, CA?
Typically, the last spring freeze lands around 04/14, roughly 229 days out. The first fall frost typically arrives around 11/02, about 201 frost-free days later.
Zone 9a (20 to 25°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 Hollister, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Hollister before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/14 is the middle of 30 years of NOAA records, not a promise. Plant by 03/15 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hollister compares
About 201 days separate Hollister's last and first frost, putting it 17,448 of 40,283 ZIP codes nationally. Within CA, it ranks 2,242 of 2,555.
Learn more
local microclimates covers what one yard in Hollister can differ from the 95075 normal. zone vs. frost date covers why Zone 9a and Hollister's frost date answer different questions.