Dunsmuir, CA 96011 Frost Dates
Frost dates for Dunsmuir, CA, ZIP 96011
The last spring frost here typically falls around 06/03, about 279 days from today. The first fall frost typically arrives around 09/14, about 102 frost-free days later.
Dunsmuir sits in USDA Zone 8b (15 to 20°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
Zone 8b around Dunsmuir has about 2 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Dunsmuir's last frost
06/03 is the middle of 30 years of NOAA records, not a promise. Plant by 05/15 and you're betting against frost in roughly 9 years out of 10. 06/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dunsmuir compares
At roughly 102 frost-free days, Dunsmuir places 39,658 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,519 of 2,555.
Learn more
the frost range explains how to read the range around Dunsmuir's dates instead of trusting one, and local microclimates explains what one yard in Dunsmuir can differ from the 96011 normal.