Dunsmuir, CA 96057 Frost Dates
When can you plant in Dunsmuir, CA?
Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/27, about 185 frost-free days later.
Dunsmuir sits in USDA Zone 7b (5 to 10°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 9 weeks of growing season left in Dunsmuir before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/23 isn't a guarantee
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dunsmuir compares
At roughly 185 frost-free days, Dunsmuir places 23,207 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,328 of 2,555.
Learn more
the frost range covers how to read the range around Dunsmuir's dates instead of trusting one. local microclimates covers what one yard in Dunsmuir can differ from the 96057 normal.