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Frost dates for Fort Smith, Arkansas

In a typical year, Fort Smith’s last spring frost lands around Mar 25 and the first fall frost around Nov 6, a growing season of about 226 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 8a.

Last spring frost and first fall frost odds for Fort Smith, Arkansas
OddsLast spring frostFirst fall frost
10 percentMar 4Oct 23
50 percentMar 25Nov 6
90 percentApr 11Nov 21

A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.

Soil in Fort Smith is typically around 81°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.

Plantable now in Fort Smith

Timing comes from the same temperature engine the app uses, run against Fort Smith’s normals for today.

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