Frostline.info

Frost line depth in Missouri

Estimated frost depth in typical soil runs from 20″ to 38″ across Missouri's 115 counties. Pick your county or enter a ZIP code for a local estimate.

Deepest frost

  1. Nodaway County 38″
  2. Mercer County 38″
  3. Putnam County 37″
  4. Schuyler County 37″
  5. Gentry County 37″

Mildest

  1. Dunklin County 20″
  2. Oregon County 20″
  3. Taney County 21″
  4. Pemiscot County 21″
  5. McDonald County 22″

Frost depth by county

CountyEst. frost (typical soil)Typical code range
Adair County35″30–48″
Andrew County35″30–48″
Atchison County36″30–48″
Audrain County33″30–42″
Barry County23″18–30″
Barton County25″24–30″
Bates County26″24–36″
Benton County27″24–36″
Bollinger County24″24–30″
Boone County31″24–42″
Buchanan County33″30–42″
Butler County22″18–30″
Caldwell County35″30–48″
Callaway County31″24–42″
Camden County25″24–30″
Cape Girardeau County24″18–30″
Carroll County32″30–42″
Carter County23″18–30″
Cass County29″24–36″
Cedar County25″24–36″
Chariton County32″30–42″
Christian County24″24–30″
Clark County34″30–42″
Clay County31″24–42″
Clinton County33″30–42″
Cole County28″24–36″
Cooper County30″24–42″
Crawford County25″24–36″
Dade County24″24–30″
Dallas County25″24–36″
Daviess County36″30–48″
DeKalb County35″30–42″
Dent County25″24–30″
Douglas County24″24–30″
Dunklin County20″18–24″
Franklin County28″24–36″
Gasconade County28″24–36″
Gentry County37″30–48″
Greene County26″24–36″
Grundy County35″30–48″
Harrison County36″30–48″
Henry County29″24–36″
Hickory County26″24–36″
Holt County36″30–48″
Howard County31″24–42″
Howell County23″18–30″
Iron County24″24–30″
Jackson County30″24–36″
Jasper County24″18–30″
Jefferson County28″24–36″
Johnson County31″24–42″
Knox County35″30–48″
Laclede County25″24–30″
Lafayette County31″24–42″
Lawrence County25″24–36″
Lewis County34″30–42″
Lincoln County32″30–42″
Linn County33″30–42″
Livingston County33″30–42″
Macon County33″30–42″
Madison County25″24–30″
Maries County27″24–36″
Marion County34″30–42″
McDonald County22″18–30″
Mercer County38″30–48″
Miller County26″24–36″
Mississippi County23″18–30″
Moniteau County28″24–36″
Monroe County33″30–42″
Montgomery County30″24–36″
Morgan County28″24–36″
New Madrid County22″18–30″
Newton County22″18–30″
Nodaway County38″30–48″
Oregon County20″18–24″
Osage County29″24–36″
Ozark County23″18–30″
Pemiscot County21″18–30″
Perry County25″24–30″
Pettis County31″24–42″
Phelps County26″24–36″
Pike County31″24–42″
Platte County31″24–42″
Polk County26″24–36″
Pulaski County24″24–30″
Putnam County37″30–48″
Ralls County33″30–42″
Randolph County31″24–42″
Ray County32″30–42″
Reynolds County24″24–30″
Ripley County22″18–30″
Saline County31″24–42″
Schuyler County37″30–48″
Scotland County36″30–48″
Scott County23″18–30″
Shannon County23″18–30″
Shelby County34″30–42″
St. Charles County30″24–42″
St. Clair County26″24–36″
St. Francois County26″24–36″
St. Louis city30″24–42″
St. Louis County30″24–42″
Ste. Genevieve County26″24–36″
Stoddard County23″18–30″
Stone County22″18–30″
Sullivan County36″30–48″
Taney County21″18–30″
Texas County25″24–30″
Vernon County25″24–36″
Warren County30″24–36″
Washington County26″24–36″
Wayne County24″24–30″
Webster County25″24–30″
Worth County36″30–48″
Wright County24″24–30″

Common questions

What is the frost line depth in Missouri?

It ranges from about 20 inches in the mildest county to 38 inches in the coldest, in typical soil.

Which Missouri county has the deepest frost?

Nodaway County, at about 38 inches in typical soil.