Tehama, CA 96090 Frost Dates
When can you plant in Tehama, CA?
Around 02/22 is the usual last spring frost, about 178 days away. The first fall frost typically arrives around 11/29, about 281 frost-free days later.
Zone 9a (20 to 25°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 Tehama, not a forecast for this year.
What to do before the first frost
About 13 weeks of growing season left in Tehama before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Tehama's last frost
02/22 is the middle of 30 years of NOAA records, not a promise. Plant by 01/17 and you're betting against frost in roughly 9 years out of 10. 03/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tehama compares
At roughly 281 frost-free days, Tehama places 4,822 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,777 of 2,555.
Learn more
zone vs. frost date covers why Zone 9a and Tehama's frost date answer different questions. the frost range covers how to read the range around Tehama's dates instead of trusting one.