Etna, CA 96014 Frost Dates
Frost dates for Etna, CA, ZIP 96014
Around 05/20 is the usual last spring frost, about 265 days away. The first fall frost typically arrives around 10/05, about 135 frost-free days later.
Zone 8a (10 to 15°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 Etna, not a forecast for this year.
What to do before the first frost
Zone 8a around Etna has about 5 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.
The actual range around Etna's last frost
05/20 is the middle of 30 years of NOAA records, not a promise. Plant by 05/02 and you're betting against frost in roughly 9 years out of 10. 06/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Etna compares
About 135 days separate Etna's last and first frost, putting it 37,901 of 40,283 ZIP codes nationally. Within CA, it ranks 2,448 of 2,555.
Learn more
zone vs. frost date explains why Zone 8a and Etna's frost date answer different questions, and the frost range explains how to read the range around Etna's dates instead of trusting one.