Sparkman, AR 71763 Frost Dates
Frost dates for Sparkman, AR, ZIP 71763
Typically, the last spring freeze lands around 03/29, roughly 213 days out. The first fall frost typically arrives around 11/04, about 223 frost-free days later.
Sparkman sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 8a around Sparkman 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 03/29 isn't a guarantee
03/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 and you're betting against frost in roughly 9 years out of 10. 04/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sparkman compares
At roughly 223 frost-free days, Sparkman places 12,147 of 40,283 ZIP codes in this dataset. Within AR, it ranks 378 of 687.
Learn more
local microclimates explains what one yard in Sparkman can differ from the 71763 normal, and zone vs. frost date explains why Zone 8a and Sparkman's frost date answer different questions.