Little Rock, AR 72115 Frost Dates
72115, near Little Rock, 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 11/10, roughly 234 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 Little Rock, not a forecast for this year.
Stretching the season past the first frost
Little Rock'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 03/21 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.
Little Rock against the rest of the dataset
About 234 days separate Little Rock's last and first frost, putting it 9,678 of 40,283 ZIP codes nationally. Within AR, it ranks 165 of 687.
Learn more
Two guides worth reading on 72115: local microclimates, on what one yard in Little Rock can differ from the 72115 normal, and zone vs. frost date, on why Zone 8a and Little Rock's frost date answer different questions.