RANKING · 2022 ACS · 144 SHOWN OF 3,144

Most extreme-heat days, US counties

US counties ranked by the number of days in 2022 that reached at least 90°F, from the heat-exposure data (NOAA North American Regional Reanalysis) published with the Census Bureau's experimental Community Resilience Estimates for Heat.

All statesAll rankings

RELATEDMost socially vulnerable Least socially vulnerable Most socially vulnerable people Most homes without air conditioning Most homes without air conditioning (total)Most vulnerable to extreme heat

RANKPLACESTATEPOPEXTREME-HEAT DAYS (90°F+)VS –

3001Luzerne County, PAPA332,1260–

3002Lycoming County, PAPA112,5870–

3003McKean County, PAPA38,9840–

3004Mercer County, PAPA107,8600–

3005Mifflin County, PAPA46,1270–

3006Monroe County, PAPA167,1790–

3007Montour County, PAPA17,8680–

3008Northampton County, PAPA324,4110–

3009Northumberland County, PAPA89,9200–

3010Pike County, PAPA62,8080–

3011Potter County, PAPA15,8970–

3012Somerset County, PAPA72,0040–

3013Sullivan County, PAPA5,8560–

3014Susquehanna County, PAPA38,2370–

3015Tioga County, PAPA40,5020–

3016Union County, PAPA42,3130–

3017Venango County, PAPA49,3460–

3018Warren County, PAPA37,0380–

3019Wayne County, PAPA51,7030–

3020Westmoreland County, PAPA349,3240–

3021Wyoming County, PAPA25,7900–

3022Blount County, TNTN143,8200–

3023Carter County, TNTN57,3610–

3024Cocke County, TNTN37,8890–

3025Johnson County, TNTN18,7180–

3026Sevier County, TNTN101,3420–

3027Unicoi County, TNTN17,8560–

3028Aransas County, TXTX26,1460–

3029Galveston County, TXTX372,2070–

3030Carbon County, UTUT20,6800–

3031Daggett County, UTUT9340–

3032Garfield County, UTUT5,2560–

3033Grand County, UTUT9,7900–

3034Kane County, UTUT8,5970–

3035Piute County, UTUT1,5090–

3036Sevier County, UTUT22,8270–

3037Summit County, UTUT43,1410–

3038Wasatch County, UTUT38,5140–

3039Addison County, VTVT38,0480–

3040Bennington County, VTVT36,6300–

3041Caledonia County, VTVT30,4140–

3042Chittenden County, VTVT169,1150–

3043Essex County, VTVT6,0510–

3044Franklin County, VTVT51,1770–

3045Grand Isle County, VTVT7,5110–

3046Lamoille County, VTVT26,2940–

3047Orange County, VTVT30,0020–

3048Orleans County, VTVT27,6000–

3049Rutland County, VTVT59,6530–

3050Washington County, VTVT59,6520–

3051Windham County, VTVT45,2040–

3052Windsor County, VTVT57,3120–

3053Bland County, VAVA6,1510–

3054Carroll County, VAVA29,2990–

3055Floyd County, VAVA15,7890–

3056Giles County, VAVA16,5640–

3057Grayson County, VAVA15,2300–

3058Highland County, VAVA2,3180–

3059Lancaster County, VAVA10,9950–

3060Lee County, VAVA21,6420–

3061Montgomery County, VAVA98,4340–

3062Northampton County, VAVA11,8790–

3063Northumberland County, VAVA12,5570–

3064Patrick County, VAVA17,4240–

3065Pulaski County, VAVA33,5860–

3066Russell County, VAVA25,3320–

3067Smyth County, VAVA28,8820–

3068Tazewell County, VAVA38,6350–

3069Washington County, VAVA53,8980–

3070Westmoreland County, VAVA19,7150–

3071Wise County, VAVA34,8240–

3072Wythe County, VAVA27,9830–

3073Galax, VAVA6,6700–

3074Norton, VAVA3,4770–

3075Radford, VAVA17,2430–

3076Virginia Beach, VAVA453,7370–

3077Chelan County, WAWA81,9410–

3078Clallam County, WAWA78,2020–

3079Clark County, WAWA532,1190–

3080Cowlitz County, WAWA114,8850–

3081Grays Harbor County, WAWA78,1440–

3082Island County, WAWA85,6570–

3083Jefferson County, WAWA33,9700–

3084King County, WAWA2,344,9390–

3085Kittitas County, WAWA48,8030–

3086Lewis County, WAWA88,0620–

3087Mason County, WAWA71,1650–

3088Okanogan County, WAWA45,2300–

3089Pacific County, WAWA24,3570–

3090Pend Oreille County, WAWA14,4570–

3091Pierce County, WAWA946,2880–

3092San Juan County, WAWA18,5770–

3093Skagit County, WAWA132,9750–

3094Skamania County, WAWA12,6690–

3095Snohomish County, WAWA870,6560–

3096Thurston County, WAWA304,2610–

3097Wahkiakum County, WAWA4,8730–

3098Whatcom County, WAWA236,3920–

3099Barbour County, WVWV15,4140–

3100Braxton County, WVWV11,8850–

3101Fayette County, WVWV38,1650–

3102Grant County, WVWV11,0410–

3103Greenbrier County, WVWV31,5780–

3104Harrison County, WVWV64,2210–

3105Lewis County, WVWV16,3940–

3106Logan County, WVWV30,3750–

3107McDowell County, WVWV16,8780–

3108Marion County, WVWV55,5840–

3109Marshall County, WVWV29,1590–

3110Mercer County, WVWV57,5030–

3111Monongalia County, WVWV107,9910–

3112Monroe County, WVWV12,4910–

3113Nicholas County, WVWV23,8480–

3114Ohio County, WVWV40,4960–

3115Pendleton County, WVWV5,8260–

3116Pocahontas County, WVWV7,6020–

3117Preston County, WVWV34,0040–

3118Raleigh County, WVWV71,7750–

3119Randolph County, WVWV26,8820–

3120Summers County, WVWV11,5320–

3121Taylor County, WVWV16,2870–

3122Tucker County, WVWV6,5400–

3123Upshur County, WVWV23,7580–

3124Webster County, WVWV7,7600–

3125Wetzel County, WVWV13,7340–

3126Ashland County, WIWI16,2030–

3127Door County, WIWI30,6160–

3128Forest County, WIWI9,5740–

3129Iron County, WIWI6,1270–

3130Kewaunee County, WIWI20,7580–

3131Lincoln County, WIWI28,4030–

3132Manitowoc County, WIWI81,7100–

3133Oneida County, WIWI38,1310–

3134Price County, WIWI13,9880–

3135Sheboygan County, WIWI118,0470–

3136Vilas County, WIWI23,7610–

3137Albany County, WYWY38,5580–

3138Hot Springs County, WYWY4,6000–

3139Johnson County, WYWY8,9080–

3140Lincoln County, WYWY21,1800–

3141Park County, WYWY31,1710–

3142Sublette County, WYWY8,9290–

3143Teton County, WYWY23,3330–

3144Uinta County, WYWY20,7280–

SHOWING 3,001–3,144 OF 3,144

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES