Winthrop, AR 71866 Frost Dates
When can you plant in Winthrop, AR?
The last spring frost here typically falls around 03/29, about 213 days from today. The first fall frost typically arrives around 11/05, about 222 frost-free days later.
Zone 8a (10 to 15°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 Winthrop, not a forecast for this year.
What to do before the first frost
About 10 weeks of growing season left in Winthrop before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
03/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/07 and you're betting against frost in roughly 9 years out of 10. 04/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Winthrop compares
About 222 days separate Winthrop's last and first frost, putting it 12,364 of 40,283 ZIP codes nationally. Within AR, it ranks 403 of 687.
Learn more
zone vs. frost date covers why Zone 8a and Winthrop's frost date answer different questions. the frost range covers how to read the range around Winthrop's dates instead of trusting one.