Etna, CA 95556 Frost Dates
When can you plant in Etna, CA?
The last spring frost here typically falls around 03/12, about 196 days from today. The first fall frost typically arrives around 11/26, about 262 frost-free days later.
The USDA Plant Hardiness Zone Map puts Etna in Zone 9a (20 to 25°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
About 13 weeks of growing season left in Etna before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Etna's last frost
03/12 is the middle of 30 years of NOAA records, not a promise. Plant by 01/26 and you're betting against frost in roughly 9 years out of 10. 04/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Etna compares
At roughly 262 frost-free days, Etna places 6,242 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,031 of 2,555.
Learn more
zone vs. frost date covers why Zone 9a and Etna's frost date answer different questions. the frost range covers how to read the range around Etna's dates instead of trusting one.