Firebaugh, CA 93622 Frost Dates
93622, near Firebaugh, CA: the frost window
The last spring frost here typically falls around 01/13, about 138 days from today. Fall's first freeze usually shows up around 12/14, roughly 338 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 Firebaugh, not a forecast for this year.
Stretching the season past the first frost
Firebaugh's growing season runs out in roughly 15 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 Firebaugh's last frost
01/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/22 and only about 1 year in 10 sees frost after that.
Firebaugh against the rest of the dataset
Firebaugh's growing season runs about 338 days, ranking 2,633 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,161 of 2,555.
Learn more
Two guides worth reading on 93622: zone vs. frost date, on why Zone 9b and Firebaugh's frost date answer different questions, and the frost range, on how to read the range around Firebaugh's dates instead of trusting one.