FrostDateCheck

Sanger, CA 93717 Frost Dates

Sanger, CA: when does the frost end?

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.

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

With roughly 15 weeks until Sanger's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around Sanger's last frost

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 2,666 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,189 of 2,555.

Learn more

Before leaning on 93717's figures: the frost range explains how to read the range around Sanger's dates instead of trusting one, while local microclimates explains what one yard in Sanger can differ from the 93717 normal.