Heber Springs, AR 72545 Frost Dates
72545, near Heber Springs, AR: the frost window
Typically, the last spring freeze lands around 03/31, roughly 215 days out. Fall's first freeze usually shows up around 11/06, roughly 222 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Heber Springs in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Heber Springs'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.
How much risk comes with planting early here
03/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Heber Springs against the rest of the dataset
Heber Springs's growing season runs about 222 days, ranking 12,244 of 40,283 US ZIP codes measured here, longest to shortest. Within AR, it ranks 385 of 687.
Learn more
Two guides worth reading on 72545: local microclimates, on what one yard in Heber Springs can differ from the 72545 normal, and zone vs. frost date, on why Zone 7b and Heber Springs's frost date answer different questions.