Pine Bluff, AR 71613 Frost Dates
71613, near Pine Bluff, AR: the frost window
Typically, the last spring freeze lands around 03/14, roughly 198 days out. Fall's first freeze usually shows up around 11/16, roughly 245 days after the last spring frost.
Zone 8b (15 to 20°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 Pine Bluff, not a forecast for this year.
Stretching the season past the first frost
Pine Bluff'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 03/14 isn't a guarantee
03/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/02 and only about 1 year in 10 sees frost after that.
Pine Bluff against the rest of the dataset
Pine Bluff's growing season runs about 245 days, ranking 7,973 of 40,283 US ZIP codes measured here, longest to shortest. Within AR, it ranks 44 of 687.
Learn more
Two guides worth reading on 71613: the frost range, on how to read the range around Pine Bluff's dates instead of trusting one, and local microclimates, on what one yard in Pine Bluff can differ from the 71613 normal.