Kingman, AZ 86402 Frost Dates
Frost dates for Kingman, AZ, ZIP 86402
The last spring frost here typically falls around 04/02, about 217 days from today. The first fall frost typically arrives around 11/11, about 220 frost-free days later.
The USDA Plant Hardiness Zone Map puts Kingman in Zone 8b (15 to 20°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
Zone 8b around Kingman has about 11 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.
How much risk comes with planting early here
04/02 is the middle of 30 years of NOAA records, not a promise. Plant by 03/08 and you're betting against frost in roughly 9 years out of 10. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kingman compares
Kingman's growing season runs about 220 days, ranking 12,689 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 352 of 506.
Learn more
the frost range explains how to read the range around Kingman's dates instead of trusting one, and local microclimates explains what one yard in Kingman can differ from the 86402 normal.