Frostline.info

Frost line depth in Ohio

Estimated frost depth in typical soil runs from 26″ to 39″ across Ohio's 88 counties. Pick your county or enter a ZIP code for a local estimate.

Deepest frost

  1. Williams County 39″
  2. Paulding County 39″
  3. Knox County 39″
  4. Defiance County 38″
  5. Morrow County 38″

Mildest

  1. Gallia County 26″
  2. Scioto County 26″
  3. Meigs County 26″
  4. Lawrence County 27″
  5. Adams County 28″

Frost depth by county

CountyEst. frost (typical soil)Typical code range
Adams County28″24–36″
Allen County35″30–48″
Ashland County37″30–48″
Ashtabula County36″30–48″
Athens County31″24–42″
Auglaize County36″30–48″
Belmont County33″30–42″
Brown County31″24–42″
Butler County31″24–42″
Carroll County35″30–42″
Champaign County36″30–48″
Clark County35″30–42″
Clermont County32″30–42″
Clinton County33″30–42″
Columbiana County35″30–42″
Coshocton County35″30–42″
Crawford County37″30–48″
Cuyahoga County35″30–48″
Darke County37″30–48″
Defiance County38″30–48″
Delaware County36″30–48″
Erie County36″30–48″
Fairfield County34″30–42″
Fayette County32″30–42″
Franklin County33″30–42″
Fulton County37″30–48″
Gallia County26″24–36″
Geauga County36″30–48″
Greene County33″30–42″
Guernsey County34″30–42″
Hamilton County30″24–36″
Hancock County37″30–48″
Hardin County37″30–48″
Harrison County32″30–42″
Henry County36″30–48″
Highland County32″30–42″
Hocking County33″30–42″
Holmes County35″30–42″
Huron County37″30–48″
Jackson County31″24–42″
Jefferson County31″24–42″
Knox County39″30–48″
Lake County35″30–42″
Lawrence County27″24–36″
Licking County34″30–42″
Logan County36″30–48″
Lorain County35″30–42″
Lucas County36″30–48″
Madison County34″30–42″
Mahoning County35″30–42″
Marion County36″30–48″
Medina County35″30–48″
Meigs County26″24–36″
Mercer County36″30–48″
Miami County34″30–42″
Monroe County34″30–42″
Montgomery County33″30–42″
Morgan County32″30–42″
Morrow County38″30–48″
Muskingum County32″30–42″
Noble County34″30–42″
Ottawa County35″30–42″
Paulding County39″30–48″
Perry County33″30–42″
Pickaway County31″30–42″
Pike County29″24–36″
Portage County35″30–48″
Preble County35″30–42″
Putnam County37″30–48″
Richland County38″30–48″
Ross County31″24–42″
Sandusky County35″30–48″
Scioto County26″24–36″
Seneca County36″30–48″
Shelby County36″30–48″
Stark County35″30–48″
Summit County35″30–48″
Trumbull County35″30–42″
Tuscarawas County34″30–42″
Union County36″30–48″
Van Wert County37″30–48″
Vinton County31″30–42″
Warren County33″30–42″
Washington County29″24–36″
Wayne County36″30–48″
Williams County39″30–48″
Wood County36″30–48″
Wyandot County35″30–48″

Common questions

What is the frost line depth in Ohio?

It ranges from about 26 inches in the mildest county to 39 inches in the coldest, in typical soil.

Which Ohio county has the deepest frost?

Williams County, at about 39 inches in typical soil.