Ojai, CA 93023 Frost Dates
When can you plant in Ojai, CA?
Typically, the last spring freeze lands around 03/21, roughly 205 days out. The first fall frost typically arrives around 11/15, about 235 frost-free days later.
Zone 8b (15 to 20°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 Ojai, not a forecast for this year.
What to do before the first frost
About 11 weeks of growing season left in Ojai before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Ojai's last frost
03/21 is the middle of 30 years of NOAA records, not a promise. Plant by 02/20 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ojai compares
About 235 days separate Ojai's last and first frost, putting it 9,588 of 40,283 ZIP codes nationally. Within CA, it ranks 2,149 of 2,555.
Learn more
zone vs. frost date covers why Zone 8b and Ojai's frost date answer different questions. the frost range covers how to read the range around Ojai's dates instead of trusting one.