Apache Junction, AZ 85119 Frost Dates
Frost dates for Apache Junction, AZ, ZIP 85119
Typically, the last spring freeze lands around 02/11, roughly 167 days out. The first fall frost typically arrives around 12/10, about 304 frost-free days later.
Apache Junction 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 Apache Junction has about 15 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 02/11 isn't a guarantee
02/11 is the middle of 30 years of NOAA records, not a promise. Plant by 01/05 and you're betting against frost in roughly 9 years out of 10. 03/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Apache Junction compares
At roughly 304 frost-free days, Apache Junction places 3,751 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 252 of 506.
Learn more
zone vs. frost date explains why Zone 9b and Apache Junction's frost date answer different questions, and the frost range explains how to read the range around Apache Junction's dates instead of trusting one.