Sulphur Rock, AR 72522 Frost Dates
When can you plant in Sulphur Rock, AR?
Typically, the last spring freeze lands around 03/30, roughly 214 days out. The first fall frost typically arrives around 11/05, about 221 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 Sulphur Rock, not a forecast for this year.
What to do before the first frost
About 10 weeks of growing season left in Sulphur Rock before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Sulphur Rock's last frost
03/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/11 and you're betting against frost in roughly 9 years out of 10. 04/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sulphur Rock compares
At roughly 221 frost-free days, Sulphur Rock places 12,555 of 40,283 ZIP codes in this dataset. Within AR, it ranks 408 of 687.
Learn more
local microclimates covers what one yard in Sulphur Rock can differ from the 72522 normal. zone vs. frost date covers why Zone 7b and Sulphur Rock's frost date answer different questions.