PowerOutageHistory
DReliability Grade

Wheeler CountyPower Outage History

20142025 · Texas

Worse than average — more frequent or longer outages than most counties.

How grades are calculated

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Reliability Rank
Higher percentile = more reliable
Nationwide28th pct
In Texas34th pct
Total events
353
Avg duration
4.4 hrs
Longest outage
166 hrs
Customers served
4,897
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Dec 27, 201578 hrs4,046 (83%)Blizzard
Oct 28, 2020136 hrs2,638 (54%)Drought
Mar 14, 202528 hrs1,927 (39%)Winter Storm
Jul 28, 20203 hrs1,597 (33%)Drought
Sep 22, 202410 hrs1,581 (32%)Unnamed event

Over the 12 years from 2014 to 2025, Wheeler County recorded 353 distinct power outage events, averaging 4.4 hours per event.

The single worst outage on record in Wheeler County started December 27, 2015 (Blizzard), lasting 78 hours and leaving up to 4,046 customers without power (83% of the county) at its peak.

July has historically been the worst month for outages in Wheeler County, with 42 events recorded during that month across the dataset.

Based on this history, Wheeler County earns a Reliability Grade of D, placing it in the 28th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Wheeler County's outage profile

See more picks in our Best Dual-Fuel Portable Generators for Power Outages roundup.

Outage-prep kit

See our outage-prep guides or the Texas storm prep checklist.

Similar counties in Texas

Counties with the closest reliability grade and national percentile to Wheeler County.

CountyGradeNational percentile
Schleicher CountyD28th
Live Oak CountyD27th
Henderson CountyD28th
Calhoun CountyD28th
Uvalde CountyD27th

Most reliable counties in Texas

The top 3 counties in Texas by reliability grade and percentile.

CountyGradeNational percentile
Zavala CountyA95th
Jasper CountyA94th
Fayette CountyA91st

Least reliable counties in Texas

The bottom 3 counties in Texas by reliability grade and percentile.

CountyGradeNational percentile
Trinity CountyF2nd
Orange CountyF2nd
Marion CountyF4th

Most reliable counties nationally

The top 3 counties nationally by reliability grade and percentile.

CountyStateGradeNational percentile
Clay CountySouth DakotaA100th
Clearwater CountyMinnesotaA99th
Limestone CountyAlabamaA99th

Least reliable counties nationally

The bottom 3 counties nationally by reliability grade and percentile.

CountyStateGradeNational percentile
Clay CountyWest VirginiaF0th
Lincoln CountyWest VirginiaF0th
Cameron ParishLouisianaF0th

FAQ

How often does power go out in Wheeler County?

Between 2014 and 2025, Wheeler County recorded 353 outage events, averaging 4.4 hours each.

What is Wheeler County's reliability grade?

Wheeler County has a Reliability Grade of D, in the 28th national percentile.

What was the worst power outage in Wheeler County?

The worst outage on record started December 27, 2015 (Blizzard), lasting 78 hours and affecting up to 4,046 customers.

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Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.