FrostDateCheck

Corning, CA 96021 Frost Dates

When can you plant in Corning, CA?

Zone 9b

The last spring frost here typically falls around 02/25, about 181 days from today. The first fall frost typically arrives around 12/02, about 279 frost-free days later.

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 Corning, not a forecast for this year.

What to do before the first frost

About 14 weeks of growing season left in Corning before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Corning's last frost

02/25 is the middle of 30 years of NOAA records, not a promise. Plant by 01/19 and you're betting against frost in roughly 9 years out of 10. 04/06 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Corning compares

At roughly 279 frost-free days, Corning places 4,889 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,798 of 2,555.

Learn more

the frost range covers how to read the range around Corning's dates instead of trusting one. local microclimates covers what one yard in Corning can differ from the 96021 normal.