Frost line depth in Meigs County, TN
How deep the ground freezes in Meigs County, TN
13 in. Dig to 13 in, just below the frost. Nearest NOAA station: Dayton 2se, 10.5 mi.
Your building department sets the legal frost line depth (IRC Table R301.2(1)); footings must go below it (R403.1.4.1). Call them before you dig.