Colfax, CA 95713 Frost Dates
Frost dates for Colfax, CA, ZIP 95713
The last spring frost here typically falls around 04/03, about 218 days from today. The first fall frost typically arrives around 11/24, about 233 frost-free days later.
Colfax sits in USDA Zone 9a (20 to 25°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 9a around Colfax has about 13 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.
How much risk comes with planting early here
04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Colfax compares
At roughly 233 frost-free days, Colfax places 9,913 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,163 of 2,555.
Learn more
local microclimates explains what one yard in Colfax can differ from the 95713 normal, and zone vs. frost date explains why Zone 9a and Colfax's frost date answer different questions.