Clifton, AZ 85533 Frost Dates
Frost dates for Clifton, AZ, ZIP 85533
Around 02/26 is the usual last spring frost, about 182 days away. The first fall frost typically arrives around 11/23, about 268 frost-free days later.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Clifton, not a forecast for this year.
What to do before the first frost
Zone 8a around Clifton has about 12 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 02/26 isn't a guarantee
02/26 is the middle of 30 years of NOAA records, not a promise. Plant by 02/06 and you're betting against frost in roughly 9 years out of 10. 03/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Clifton compares
At roughly 268 frost-free days, Clifton places 5,767 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 308 of 506.
Learn more
zone vs. frost date explains why Zone 8a and Clifton's frost date answer different questions, and the frost range explains how to read the range around Clifton's dates instead of trusting one.