Colfax, CA 95701 Frost Dates
95701, near Colfax, CA: the frost window
The last spring frost here typically falls around 05/04, about 249 days from today. Fall's first freeze usually shows up around 11/04, roughly 183 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Colfax in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Colfax's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
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 23,878 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,337 of 2,555.
Learn more
Two guides worth reading on 95701: local microclimates, on what one yard in Colfax can differ from the 95701 normal, and zone vs. frost date, on why Zone 8b and Colfax's frost date answer different questions.