FrostDateCheck

Eloy, AZ 85131 Frost Dates

When can you plant in Eloy, AZ?

Zone 9a

The last spring frost here typically falls around 02/28, about 184 days from today. The first fall frost typically arrives around 11/21, about 266 frost-free days later.

Zone 9a (20 to 25°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 Eloy, not a forecast for this year.

What to do before the first frost

About 12 weeks of growing season left in Eloy before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 02/28 isn't a guarantee

02/28 is the middle of 30 years of NOAA records, not a promise. Plant by 02/03 and you're betting against frost in roughly 9 years out of 10. 03/14 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Eloy compares

About 266 days separate Eloy's last and first frost, putting it 5,927 of 40,283 ZIP codes nationally. Within AZ, it ranks 311 of 506.

Learn more

the frost range covers how to read the range around Eloy's dates instead of trusting one. local microclimates covers what one yard in Eloy can differ from the 85131 normal.