Benton, AR 72158 Frost Dates
Frost dates for Benton, AR, ZIP 72158
Typically, the last spring freeze lands around 03/24, roughly 208 days out. The first fall frost typically arrives around 11/07, about 229 frost-free days later.
The USDA Plant Hardiness Zone Map puts Benton in Zone 8a (10 to 15°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 8a around Benton has about 10 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 03/24 isn't a guarantee
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/03 and you're betting against frost in roughly 9 years out of 10. 04/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Benton compares
Benton's growing season runs about 229 days, ranking 10,549 of 40,283 US ZIP codes measured here, longest to shortest. Within AR, it ranks 248 of 687.
Learn more
zone vs. frost date explains why Zone 8a and Benton's frost date answer different questions, and the frost range explains how to read the range around Benton's dates instead of trusting one.