Mountainburg, AR 72946 Frost Dates
When can you plant in Mountainburg, AR?
Typically, the last spring freeze lands around 04/09, roughly 224 days out. The first fall frost typically arrives around 10/28, about 201 frost-free days later.
The USDA Plant Hardiness Zone Map puts Mountainburg in Zone 7b (5 to 10°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
About 9 weeks of growing season left in Mountainburg before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Mountainburg's last frost
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/24 and you're betting against frost in roughly 9 years out of 10. 04/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mountainburg compares
Mountainburg's growing season runs about 201 days, ranking 17,628 of 40,283 US ZIP codes measured here, longest to shortest. Within AR, it ranks 601 of 687.
Learn more
zone vs. frost date covers why Zone 7b and Mountainburg's frost date answer different questions. the frost range covers how to read the range around Mountainburg's dates instead of trusting one.