FrostDateCheck

Sanger, CA 93786 Frost Dates

93786, near Sanger, CA: the frost window

Zone 9b

Typically, the last spring freeze lands around 01/14, roughly 139 days out. Fall's first freeze usually shows up around 12/14, roughly 337 days after the last spring frost.

Sanger 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

Sanger'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.

Why 01/14 isn't a guarantee

01/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/11 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.

Sanger against the rest of the dataset

Sanger's growing season runs about 337 days, ranking 2,690 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,213 of 2,555.

Learn more

Two guides worth reading on 93786: zone vs. frost date, on why Zone 9b and Sanger's frost date answer different questions, and the frost range, on how to read the range around Sanger's dates instead of trusting one.