How deep is frost line in Arkansas?

Answer 1

I have checked several sources, National Weather Service, USGS, NOAA, local weather data, and to the best of knowledge the answer to this is. There is not a Frost Line Established for Central Arkansas. We simply do not stay below freezing long enough to establish one. Sure the ground freezes; sometimes 6-8 inches deep. But does not stay frozen as the ground does in the northern part of USA and other areas. Tommy Thompson

Answer 2

70" in the south, 90" in the Northern Aroostook County.

Answer 3

42

Answer 4

4'