Altheimer, AR 71612 Frost Dates
71612, near Altheimer, AR: the frost window
Typically, the last spring freeze lands around 03/13, roughly 197 days out. Fall's first freeze usually shows up around 11/13, roughly 243 days after the last spring frost.
Altheimer sits in USDA Zone 8b (15 to 20°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
Altheimer'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.
How much risk comes with planting early here
03/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/01 and only about 1 year in 10 sees frost after that.
Altheimer against the rest of the dataset
About 243 days separate Altheimer's last and first frost, putting it 8,324 of 40,283 ZIP codes nationally. Within AR, it ranks 62 of 687.
Learn more
Two guides worth reading on 71612: zone vs. frost date, on why Zone 8b and Altheimer's frost date answer different questions, and the frost range, on how to read the range around Altheimer's dates instead of trusting one.