Big Flat, AR 72617 Frost Dates
Frost dates for Big Flat, AR, ZIP 72617
Typically, the last spring freeze lands around 04/14, roughly 229 days out. The first fall frost typically arrives around 10/28, about 196 frost-free days later.
Zone 7b (5 to 10°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 Big Flat, not a forecast for this year.
What to do before the first frost
Zone 7b around Big Flat has about 9 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
04/14 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Big Flat compares
Big Flat's growing season runs about 196 days, ranking 19,120 of 40,283 US ZIP codes measured here, longest to shortest. Within AR, it ranks 639 of 687.
Learn more
the frost range explains how to read the range around Big Flat's dates instead of trusting one, and local microclimates explains what one yard in Big Flat can differ from the 72617 normal.