FrostDateCheck

Fresno, CA 93702 Frost Dates

When can you plant in Fresno, CA?

Zone 9b

The last spring frost here typically falls around 01/14, about 139 days from today. The first fall frost typically arrives around 12/14, about 337 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 Fresno, not a forecast for this year.

What to do before the first frost

About 15 weeks of growing season left in Fresno before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Fresno's last frost

01/14 is the middle of 30 years of NOAA records, not a promise. Plant by 02/11 and you're betting against frost in roughly 9 years out of 10. 12/22 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Fresno compares

At roughly 337 frost-free days, Fresno places 2,641 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,164 of 2,555.

Learn more

local microclimates covers what one yard in Fresno can differ from the 93702 normal. zone vs. frost date covers why Zone 9b and Fresno's frost date answer different questions.