Truckee, CA 96145 Frost Dates
Frost dates for Truckee, CA, ZIP 96145
Around 06/09 is the usual last spring frost, about 285 days away. The first fall frost typically arrives around 09/25, about 108 frost-free days later.
Zone 7a (0 to 5°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 Truckee, not a forecast for this year.
What to do before the first frost
Zone 7a around Truckee has about 4 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 06/09 isn't a guarantee
06/09 is the middle of 30 years of NOAA records, not a promise. Plant by 05/26 and you're betting against frost in roughly 9 years out of 10. 06/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Truckee compares
About 108 days separate Truckee's last and first frost, putting it 39,532 of 40,283 ZIP codes nationally. Within CA, it ranks 2,505 of 2,555.
Learn more
local microclimates explains what one yard in Truckee can differ from the 96145 normal, and zone vs. frost date explains why Zone 7a and Truckee's frost date answer different questions.