Sahuarita, AZ 85622 Frost Dates
When can you plant in Sahuarita, AZ?
The last spring frost here typically falls around 02/25, about 181 days from today. The first fall frost typically arrives around 11/27, about 276 frost-free days later.
The USDA Plant Hardiness Zone Map puts Sahuarita 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 13 weeks of growing season left in Sahuarita before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Sahuarita's last frost
02/25 is the middle of 30 years of NOAA records, not a promise. Plant by 01/31 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 Sahuarita compares
About 276 days separate Sahuarita's last and first frost, putting it 5,047 of 40,283 ZIP codes nationally. Within AZ, it ranks 302 of 506.
Learn more
local microclimates covers what one yard in Sahuarita can differ from the 85622 normal. zone vs. frost date covers why Zone 9a and Sahuarita's frost date answer different questions.