Buckeye, AZ 85322 Frost Dates
85322, near Buckeye, AZ: the frost window
Typically, the last spring freeze lands around 01/21, roughly 146 days out. Fall's first freeze usually shows up around 12/15, roughly 327 days after the last spring frost.
Buckeye 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
Buckeye's growing season runs out in roughly 16 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
01/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/24 and only about 1 year in 10 sees frost after that.
Buckeye against the rest of the dataset
About 327 days separate Buckeye's last and first frost, putting it 3,198 of 40,283 ZIP codes nationally. Within AZ, it ranks 188 of 506.
Learn more
Two guides worth reading on 85322: zone vs. frost date, on why Zone 9b and Buckeye's frost date answer different questions, and the frost range, on how to read the range around Buckeye's dates instead of trusting one.