Apache Junction, AZ 85190 Frost Dates
Apache Junction, AZ: when does the frost end?
The last spring frost here typically falls around 01/29, about 154 days from today. Fall's first freeze usually shows up around 12/24, roughly 334 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 17 weeks until Apache Junction's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Apache Junction's last frost
01/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/23 and only about 1 year in 10 sees frost after that.
Apache Junction against the rest of the dataset
About 334 days separate Apache Junction's last and first frost, putting it 2,762 of 40,283 ZIP codes nationally. Within AZ, it ranks 148 of 506.
Learn more
Before leaning on 85190's figures: local microclimates explains what one yard in Apache Junction can differ from the 85190 normal, while zone vs. frost date explains why Zone 9b and Apache Junction's frost date answer different questions.