FrostDateCheck

Sanger, CA 93773 Frost Dates

93773, near Sanger, CA: the frost window

Zone 9b

The last spring frost here typically falls around 01/14, about 139 days from today. Fall's first freeze usually shows up around 12/14, roughly 337 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 Sanger, not a forecast for this year.

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.

How much risk comes with planting early here

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

At roughly 337 frost-free days, Sanger places 2,683 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,206 of 2,555.

Learn more

Two guides worth reading on 93773: 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.