Coalinga, CA 93210 Frost Dates
93210, near Coalinga, CA: the frost window
Typically, the last spring freeze lands around 02/14, roughly 170 days out. Fall's first freeze usually shows up around 11/30, roughly 292 days after the last spring frost.
Coalinga sits in USDA Zone 9b (25 to 30°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
Coalinga's growing season runs out in roughly 13 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 Coalinga's last frost
02/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/08 and only about 1 year in 10 sees frost after that.
Coalinga against the rest of the dataset
Coalinga's growing season runs about 292 days, ranking 4,344 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,697 of 2,555.
Learn more
Two guides worth reading on 93210: zone vs. frost date, on why Zone 9b and Coalinga's frost date answer different questions, and the frost range, on how to read the range around Coalinga's dates instead of trusting one.