Amity, AR 71921 Frost Dates
71921, near Amity, AR: the frost window
Typically, the last spring freeze lands around 03/20, roughly 204 days out. Fall's first freeze usually shows up around 11/10, roughly 234 days after the last spring frost.
Amity sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Amity's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/20 isn't a guarantee
03/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/07 and only about 1 year in 10 sees frost after that.
Amity against the rest of the dataset
About 234 days separate Amity's last and first frost, putting it 9,792 of 40,283 ZIP codes nationally. Within AR, it ranks 189 of 687.
Learn more
Two guides worth reading on 71921: zone vs. frost date, on why Zone 8a and Amity's frost date answer different questions, and the frost range, on how to read the range around Amity's dates instead of trusting one.