Jasper, AR 72648 Frost Dates
Jasper, AR: when does the frost end?
Around 03/22 is the usual last spring frost, about 206 days away. Fall's first freeze usually shows up around 11/09, roughly 231 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Jasper 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
With roughly 10 weeks until Jasper's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/22 isn't a guarantee
03/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Jasper against the rest of the dataset
At roughly 231 frost-free days, Jasper places 10,250 of 40,283 ZIP codes in this dataset. Within AR, it ranks 218 of 687.
Learn more
Before leaning on 72648's figures: the frost range explains how to read the range around Jasper's dates instead of trusting one, while local microclimates explains what one yard in Jasper can differ from the 72648 normal.