Scottsdale, AZ 85260 Frost Dates
When can you plant in Scottsdale, AZ?
Around 01/06 is the usual last spring frost, about 131 days away. The first fall frost typically arrives around 12/26, about 353 frost-free days later.
The USDA Plant Hardiness Zone Map puts Scottsdale in Zone 10a (30 to 35°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 17 weeks of growing season left in Scottsdale before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Scottsdale's last frost
01/06 is the middle of 30 years of NOAA records, not a promise. Plant by 02/07 and you're betting against frost in roughly 9 years out of 10. 12/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Scottsdale compares
Scottsdale's growing season runs about 353 days, ranking 2,206 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 56 of 506.
Learn more
the frost range covers how to read the range around Scottsdale's dates instead of trusting one. local microclimates covers what one yard in Scottsdale can differ from the 85260 normal.