FrostDateCheck

Chino Valley, AZ 86334 Frost Dates

When can you plant in Chino Valley, AZ?

Zone 8a

The last spring frost here typically falls around 04/27, about 242 days from today. The first fall frost typically arrives around 10/24, about 178 frost-free days later.

Zone 8a (10 to 15°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 Chino Valley, not a forecast for this year.

What to do before the first frost

About 8 weeks of growing season left in Chino Valley before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Chino Valley compares

Chino Valley's growing season runs about 178 days, ranking 25,630 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 430 of 506.

Learn more

zone vs. frost date covers why Zone 8a and Chino Valley's frost date answer different questions. the frost range covers how to read the range around Chino Valley's dates instead of trusting one.