Miami, AZ 85532 Frost Dates
85532, near Miami, AZ: the frost window
Typically, the last spring freeze lands around 02/24, roughly 180 days out. Fall's first freeze usually shows up around 12/01, roughly 279 days after the last spring frost.
Miami sits in USDA Zone 9a (20 to 25°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
Miami's growing season runs out in roughly 14 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Miami's last frost
02/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/18 and only about 1 year in 10 sees frost after that.
Miami against the rest of the dataset
At roughly 279 frost-free days, Miami places 4,901 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 299 of 506.
Learn more
Two guides worth reading on 85532: zone vs. frost date, on why Zone 9a and Miami's frost date answer different questions, and the frost range, on how to read the range around Miami's dates instead of trusting one.