Avondale, AZ 85277 Frost Dates
Frost dates for Avondale, AZ, ZIP 85277
Around 01/14 is the usual last spring frost, about 139 days away. The first fall frost typically arrives around 12/22, about 343 frost-free days later.
Avondale sits in USDA Zone 9b (25 to 30°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 9b around Avondale has about 17 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.
How much risk comes with planting early here
01/14 is the middle of 30 years of NOAA records, not a promise. Plant by 02/12 and you're betting against frost in roughly 9 years out of 10. 12/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Avondale compares
At roughly 343 frost-free days, Avondale places 2,506 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 120 of 506.
Learn more
the frost range explains how to read the range around Avondale's dates instead of trusting one, and local microclimates explains what one yard in Avondale can differ from the 85277 normal.