Avondale, AZ 85312 Frost Dates
When can you plant in Avondale, AZ?
Typically, the last spring freeze lands around 01/14, roughly 139 days out. 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
About 17 weeks of growing season left in Avondale before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Avondale's last frost
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
Avondale's growing season runs about 343 days, ranking 2,510 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 124 of 506.
Learn more
zone vs. frost date covers why Zone 9b and Avondale's frost date answer different questions. the frost range covers how to read the range around Avondale's dates instead of trusting one.