Avondale, AZ 85074 Frost Dates
85074, near Avondale, AZ: the frost window
Around 01/14 is the usual last spring frost, about 139 days away. Fall's first freeze usually shows up around 12/22, roughly 343 days after the last spring frost.
Zone 10a (30 to 35°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Avondale, not a forecast for this year.
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
About 343 days separate Avondale's last and first frost, putting it 2,489 of 40,283 ZIP codes nationally. Within AZ, it ranks 103 of 506.
Learn more
Two guides worth reading on 85074: zone vs. frost date, on why Zone 10a and Avondale's frost date answer different questions, and the frost range, on how to read the range around Avondale's dates instead of trusting one.