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IECC 2021 · PNNL

Kentucky climate zones

Kentucky’s 120 counties fall in 1 IECC 2021 climate zone: 4A (120).

Zone 4A: mixed-humid

Attic target R60 (ENERGY STAR)

Adair County (Mixed-humid) · Allen County (Mixed-humid) · Anderson County (Mixed-humid) · Ballard County (Mixed-humid) · Barren County (Mixed-humid) · Bath County (Mixed-humid) · Bell County (Mixed-humid) · Boone County (Mixed-humid) · Bourbon County (Mixed-humid) · Boyd County (Mixed-humid) · Boyle County (Mixed-humid) · Bracken County (Mixed-humid) · Breathitt County (Mixed-humid) · Breckinridge County (Mixed-humid) · Bullitt County (Mixed-humid) · Butler County (Mixed-humid) · Caldwell County (Mixed-humid) · Calloway County (Mixed-humid) · Campbell County (Mixed-humid) · Carlisle County (Mixed-humid) · Carroll County (Mixed-humid) · Carter County (Mixed-humid) · Casey County (Mixed-humid) · Christian County (Mixed-humid) · Clark County (Mixed-humid) · Clay County (Mixed-humid) · Clinton County (Mixed-humid) · Crittenden County (Mixed-humid) · Cumberland County (Mixed-humid) · Daviess County (Mixed-humid) · Edmonson County (Mixed-humid) · Elliott County (Mixed-humid) · Estill County (Mixed-humid) · Fayette County (Mixed-humid) · Fleming County (Mixed-humid) · Floyd County (Mixed-humid) · Franklin County (Mixed-humid) · Fulton County (Mixed-humid) · Gallatin County (Mixed-humid) · Garrard County (Mixed-humid) · Grant County (Mixed-humid) · Graves County (Mixed-humid) · Grayson County (Mixed-humid) · Green County (Mixed-humid) · Greenup County (Mixed-humid) · Hancock County (Mixed-humid) · Hardin County (Mixed-humid) · Harlan County (Mixed-humid) · Harrison County (Mixed-humid) · Hart County (Mixed-humid) · Henderson County (Mixed-humid) · Henry County (Mixed-humid) · Hickman County (Mixed-humid) · Hopkins County (Mixed-humid) · Jackson County (Mixed-humid) · Jefferson County (Mixed-humid) · Jessamine County (Mixed-humid) · Johnson County (Mixed-humid) · Kenton County (Mixed-humid) · Knott County (Mixed-humid) · Knox County (Mixed-humid) · Larue County (Mixed-humid) · Laurel County (Mixed-humid) · Lawrence County (Mixed-humid) · Lee County (Mixed-humid) · Leslie County (Mixed-humid) · Letcher County (Mixed-humid) · Lewis County (Mixed-humid) · Lincoln County (Mixed-humid) · Livingston County (Mixed-humid) · Logan County (Mixed-humid) · Lyon County (Mixed-humid) · Madison County (Mixed-humid) · Magoffin County (Mixed-humid) · Marion County (Mixed-humid) · Marshall County (Mixed-humid) · Martin County (Mixed-humid) · Mason County (Mixed-humid) · McCracken County (Mixed-humid) · McCreary County (Mixed-humid) · McLean County (Mixed-humid) · Meade County (Mixed-humid) · Menifee County (Mixed-humid) · Mercer County (Mixed-humid) · Metcalfe County (Mixed-humid) · Monroe County (Mixed-humid) · Montgomery County (Mixed-humid) · Morgan County (Mixed-humid) · Muhlenberg County (Mixed-humid) · Nelson County (Mixed-humid) · Nicholas County (Mixed-humid) · Ohio County (Mixed-humid) · Oldham County (Mixed-humid) · Owen County (Mixed-humid) · Owsley County (Mixed-humid) · Pendleton County (Mixed-humid) · Perry County (Mixed-humid) · Pike County (Mixed-humid) · Powell County (Mixed-humid) · Pulaski County (Mixed-humid) · Robertson County (Mixed-humid) · Rockcastle County (Mixed-humid) · Rowan County (Mixed-humid) · Russell County (Mixed-humid) · Scott County (Mixed-humid) · Shelby County (Mixed-humid) · Simpson County (Mixed-humid) · Spencer County (Mixed-humid) · Taylor County (Mixed-humid) · Todd County (Mixed-humid) · Trigg County (Mixed-humid) · Trimble County (Mixed-humid) · Union County (Mixed-humid) · Warren County (Mixed-humid) · Washington County (Mixed-humid) · Wayne County (Mixed-humid) · Webster County (Mixed-humid) · Whitley County (Mixed-humid) · Wolfe County (Mixed-humid) · Woodford County (Mixed-humid)