Colfax, CA 95714 Frost Dates
Colfax, CA: when does the frost end?
Typically, the last spring freeze lands around 05/04, roughly 249 days out. Fall's first freeze usually shows up around 11/04, roughly 183 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 10 weeks until Colfax's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Colfax's last frost
05/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/31 and only about 1 year in 10 sees frost after that.
Colfax against the rest of the dataset
At roughly 183 frost-free days, Colfax places 23,879 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,338 of 2,555.
Learn more
Before leaning on 95714's figures: local microclimates explains what one yard in Colfax can differ from the 95714 normal, while zone vs. frost date explains why Zone 9a and Colfax's frost date answer different questions.