FrostDateCheck

Chandler, AZ 85225 Frost Dates

Frost dates for Chandler, AZ, ZIP 85225

Zone 9b

The last spring frost here typically falls around 02/13, about 169 days from today. The first fall frost typically arrives around 12/05, about 298 frost-free days later.

The USDA Plant Hardiness Zone Map puts Chandler in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

What to do before the first frost

Zone 9b around Chandler has about 14 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.

Why 02/13 isn't a guarantee

02/13 is the middle of 30 years of NOAA records, not a promise. Plant by 01/12 and you're betting against frost in roughly 9 years out of 10. 03/09 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Chandler compares

About 298 days separate Chandler's last and first frost, putting it 4,188 of 40,283 ZIP codes nationally. Within AZ, it ranks 259 of 506.

Learn more

the frost range explains how to read the range around Chandler's dates instead of trusting one, and local microclimates explains what one yard in Chandler can differ from the 85225 normal.