Buckeye, AZ 85354 Frost Dates
Frost dates for Buckeye, AZ, ZIP 85354
The last spring frost here typically falls around 01/21, about 146 days from today. The first fall frost typically arrives around 12/15, about 327 frost-free days later.
Zone 9b (25 to 30°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 Buckeye, not a forecast for this year.
What to do before the first frost
Zone 9b around Buckeye has about 16 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.
The actual range around Buckeye's last frost
01/21 is the middle of 30 years of NOAA records, not a promise. Plant by 02/18 and you're betting against frost in roughly 9 years out of 10. 12/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Buckeye compares
Buckeye's growing season runs about 327 days, ranking 3,199 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 189 of 506.
Learn more
local microclimates explains what one yard in Buckeye can differ from the 85354 normal, and zone vs. frost date explains why Zone 9b and Buckeye's frost date answer different questions.