Miami, AZ 85502 Frost Dates
When can you plant in Miami, AZ?
The last spring frost here typically falls around 02/24, about 180 days from today. The first fall frost typically arrives around 12/01, about 279 frost-free days later.
The USDA Plant Hardiness Zone Map puts Miami in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 14 weeks of growing season left in Miami before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Miami's last frost
02/24 is the middle of 30 years of NOAA records, not a promise. Plant by 01/30 and you're betting against frost in roughly 9 years out of 10. 03/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Miami compares
About 279 days separate Miami's last and first frost, putting it 4,900 of 40,283 ZIP codes nationally. Within AZ, it ranks 298 of 506.
Learn more
the frost range covers how to read the range around Miami's dates instead of trusting one. local microclimates covers what one yard in Miami can differ from the 85502 normal.