Marianna, AR 72360 Frost Dates
Frost dates for Marianna, AR, ZIP 72360
Around 03/18 is the usual last spring frost, about 202 days away. The first fall frost typically arrives around 11/11, about 238 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 Marianna, not a forecast for this year.
What to do before the first frost
Zone 8a around Marianna has about 11 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.
The actual range around Marianna's last frost
03/18 is the middle of 30 years of NOAA records, not a promise. Plant by 03/01 and you're betting against frost in roughly 9 years out of 10. 04/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Marianna compares
At roughly 238 frost-free days, Marianna places 8,974 of 40,283 ZIP codes in this dataset. Within AR, it ranks 105 of 687.
Learn more
the frost range explains how to read the range around Marianna's dates instead of trusting one, and local microclimates explains what one yard in Marianna can differ from the 72360 normal.