Santa Clara, CA 95054 Frost Dates
Frost dates for Santa Clara, CA, ZIP 95054
The last spring frost here typically falls around 01/12, about 137 days from today. The first fall frost typically arrives around 12/22, about 347 frost-free days later.
Santa Clara sits in USDA Zone 10a (30 to 35°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 10a around Santa Clara has about 17 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.
How much risk comes with planting early here
01/12 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. 12/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Santa Clara compares
About 347 days separate Santa Clara's last and first frost, putting it 2,385 of 40,283 ZIP codes nationally. Within CA, it ranks 1,072 of 2,555.
Learn more
local microclimates explains what one yard in Santa Clara can differ from the 95054 normal, and zone vs. frost date explains why Zone 10a and Santa Clara's frost date answer different questions.