Winkelman, AZ 85192 Frost Dates
When can you plant in Winkelman, AZ?
Around 03/29 is the usual last spring frost, about 213 days away. The first fall frost typically arrives around 11/13, about 225 frost-free days later.
The USDA Plant Hardiness Zone Map puts Winkelman 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 11 weeks of growing season left in Winkelman before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Winkelman's last frost
03/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/06 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Winkelman compares
About 225 days separate Winkelman's last and first frost, putting it 11,475 of 40,283 ZIP codes nationally. Within AZ, it ranks 342 of 506.
Learn more
local microclimates covers what one yard in Winkelman can differ from the 85192 normal. zone vs. frost date covers why Zone 9a and Winkelman's frost date answer different questions.