Patagonia, AZ 85624 Frost Dates
When can you plant in Patagonia, AZ?
The last spring frost here typically falls around 03/20, about 204 days from today. The first fall frost typically arrives around 11/17, about 239 frost-free days later.
The USDA Plant Hardiness Zone Map puts Patagonia in Zone 8a (10 to 15°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 12 weeks of growing season left in Patagonia before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Patagonia's last frost
03/20 is the middle of 30 years of NOAA records, not a promise. Plant by 02/24 and you're betting against frost in roughly 9 years out of 10. 04/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Patagonia compares
At roughly 239 frost-free days, Patagonia places 8,865 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 328 of 506.
Learn more
the frost range covers how to read the range around Patagonia's dates instead of trusting one. local microclimates covers what one yard in Patagonia can differ from the 85624 normal.