Avondale, AZ 85038 Frost Dates
85038, near Avondale, AZ: the frost window
Typically, the last spring freeze lands around 01/14, roughly 139 days out. Fall's first freeze usually shows up around 12/22, roughly 343 days after the last spring frost.
Avondale sits in USDA Zone 10a (30 to 35°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
Avondale's growing season runs out in roughly 17 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
01/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/19 and only about 1 year in 10 sees frost after that.
Avondale against the rest of the dataset
Avondale's growing season runs about 343 days, ranking 2,472 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 86 of 506.
Learn more
Two guides worth reading on 85038: local microclimates, on what one yard in Avondale can differ from the 85038 normal, and zone vs. frost date, on why Zone 10a and Avondale's frost date answer different questions.