Santa Clara, UT 84765 Frost Dates
Frost dates for Santa Clara, UT, ZIP 84765
Around 03/14 is the usual last spring frost, about 198 days away. The first fall frost typically arrives around 11/10, about 239 frost-free days later.
The USDA Plant Hardiness Zone Map puts Santa Clara in Zone 8a (10 to 15°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 8a around Santa Clara has about 11 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.
Why 03/14 isn't a guarantee
03/14 is the middle of 30 years of NOAA records, not a promise. Plant by 02/27 and you're betting against frost in roughly 9 years out of 10. 04/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Santa Clara compares
About 239 days separate Santa Clara's last and first frost, putting it 8,804 of 40,283 ZIP codes nationally. Within UT, it ranks 6 of 344.
Learn more
the frost range explains how to read the range around Santa Clara's dates instead of trusting one, and local microclimates explains what one yard in Santa Clara can differ from the 84765 normal.