Coy, AR 72037 Frost Dates
72037, near Coy, AR: the frost window
Around 03/21 is the usual last spring frost, about 205 days away. Fall's first freeze usually shows up around 11/09, roughly 235 days after the last spring frost.
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 Coy, not a forecast for this year.
Stretching the season past the first frost
Coy's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/21 isn't a guarantee
03/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/06 and only about 1 year in 10 sees frost after that.
Coy against the rest of the dataset
Coy's growing season runs about 235 days, ranking 9,673 of 40,283 US ZIP codes measured here, longest to shortest. Within AR, it ranks 160 of 687.
Learn more
Two guides worth reading on 72037: local microclimates, on what one yard in Coy can differ from the 72037 normal, and zone vs. frost date, on why Zone 8a and Coy's frost date answer different questions.