Siloam Springs, AR 72761 Frost Dates
Frost dates for Siloam Springs, AR, ZIP 72761
Around 04/08 is the usual last spring frost, about 223 days away. The first fall frost typically arrives around 10/28, about 203 frost-free days later.
Zone 7a (0 to 5°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 Siloam Springs, not a forecast for this year.
What to do before the first frost
Zone 7a around Siloam Springs has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/08 isn't a guarantee
04/08 is the middle of 30 years of NOAA records, not a promise. Plant by 03/21 and you're betting against frost in roughly 9 years out of 10. 04/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Siloam Springs compares
About 203 days separate Siloam Springs's last and first frost, putting it 16,857 of 40,283 ZIP codes nationally. Within AR, it ranks 579 of 687.
Learn more
the frost range explains how to read the range around Siloam Springs's dates instead of trusting one, and local microclimates explains what one yard in Siloam Springs can differ from the 72761 normal.