Biggs, CA 95917 Frost Dates
95917, near Biggs, CA: the frost window
Around 01/29 is the usual last spring frost, about 154 days away. Fall's first freeze usually shows up around 12/07, roughly 317 days after the last spring frost.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Biggs, not a forecast for this year.
Stretching the season past the first frost
Biggs's growing season runs out in roughly 14 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 Biggs's last frost
01/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/28 and only about 1 year in 10 sees frost after that.
Biggs against the rest of the dataset
Biggs's growing season runs about 317 days, ranking 3,386 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,409 of 2,555.
Learn more
Two guides worth reading on 95917: zone vs. frost date, on why Zone 9b and Biggs's frost date answer different questions, and the frost range, on how to read the range around Biggs's dates instead of trusting one.