Dorris, CA 97627 Frost Dates
When can you plant in Dorris, CA?
Typically, the last spring freeze lands around 06/05, roughly 281 days out. The first fall frost typically arrives around 09/20, about 107 frost-free days later.
Dorris sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 3 weeks of growing season left in Dorris before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Dorris's last frost
06/05 is the middle of 30 years of NOAA records, not a promise. Plant by 05/16 and you're betting against frost in roughly 9 years out of 10. 06/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dorris compares
At roughly 107 frost-free days, Dorris places 39,566 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,509 of 2,555.
Learn more
zone vs. frost date covers why Zone 6b and Dorris's frost date answer different questions. the frost range covers how to read the range around Dorris's dates instead of trusting one.