Iowa climate zones

Adair County (Cold) · Adams County (Cold) · Allamakee County (Cold) · Appanoose County (Cold) · Audubon County (Cold) · Benton County (Cold) · Boone County (Cold) · Bremer County (Cold) · Buchanan County (Cold) · Buena Vista County (Cold) · Butler County (Cold) · Calhoun County (Cold) · Carroll County (Cold) · Cass County (Cold) · Cedar County (Cold) · Cherokee County (Cold) · Chickasaw County (Cold) · Clarke County (Cold) · Clayton County (Cold) · Clinton County (Cold) · Crawford County (Cold) · Dallas County (Cold) · Davis County (Cold) · Decatur County (Cold) · Delaware County (Cold) · Des Moines County (Cold) · Dubuque County (Cold) · Fayette County (Cold) · Floyd County (Cold) · Franklin County (Cold) · Fremont County (Cold) · Greene County (Cold) · Grundy County (Cold) · Guthrie County (Cold) · Hamilton County (Cold) · Hardin County (Cold) · Harrison County (Cold) · Henry County (Cold) · Howard County (Cold) · Humboldt County (Cold) · Ida County (Cold) · Iowa County (Cold) · Jackson County (Cold) · Jasper County (Cold) · Jefferson County (Cold) · Johnson County (Cold) · Jones County (Cold) · Keokuk County (Cold) · Lee County (Cold) · Linn County (Cold) · Louisa County (Cold) · Lucas County (Cold) · Madison County (Cold) · Mahaska County (Cold) · Marion County (Cold) · Marshall County (Cold) · Mills County (Cold) · Monona County (Cold) · Monroe County (Cold) · Montgomery County (Cold) · Muscatine County (Cold) · Page County (Cold) · Plymouth County (Cold) · Pocahontas County (Cold) · Polk County (Cold) · Pottawattamie County (Cold) · Poweshiek County (Cold) · Ringgold County (Cold) · Sac County (Cold) · Scott County (Cold) · Shelby County (Cold) · Story County (Cold) · Tama County (Cold) · Taylor County (Cold) · Union County (Cold) · Van Buren County (Cold) · Wapello County (Cold) · Warren County (Cold) · Washington County (Cold) · Wayne County (Cold) · Webster County (Cold) · Winneshiek County (Cold) · Woodbury County (Cold) · Wright County (Cold)

Black Hawk County (Cold) · Cerro Gordo County (Cold) · Clay County (Cold) · Dickinson County (Cold) · Emmet County (Cold) · Hancock County (Cold) · Kossuth County (Cold) · Lyon County (Cold) · Mitchell County (Cold) · O'Brien County (Cold) · Osceola County (Cold) · Palo Alto County (Cold) · Sioux County (Cold) · Winnebago County (Cold) · Worth County (Cold)