PowerOutageHistory
FReliability Grade

Brewster CountyPower Outage History

20142025 · Texas

Bottom 20% least reliable nationally — frequent and/or long outages.

How grades are calculated

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Reliability Rank
Higher percentile = more reliable
Nationwide16th pct
In Texas16th pct
Total events
838
Avg duration
11.8 hrs
Longest outage
574 hrs
Customers served
4,958
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Feb 15, 202177 hrs2,748 (55%)Winter Storm Uri
Aug 19, 2024175 hrs2,467 (50%)Unnamed event
Mar 13, 20216 hrs1,918 (39%)High Wind
Aug 28, 20221 hrs1,788 (36%)Thunderstorm Wind
Jul 24, 2024253 hrs1,778 (36%)Unnamed event

Over the 12 years from 2014 to 2025, Brewster County recorded 838 distinct power outage events, averaging 11.8 hours per event.

The single worst outage on record in Brewster County started February 15, 2021 (Winter Storm Uri), lasting 77 hours and leaving up to 2,748 customers without power (55% of the county) at its peak.

May has historically been the worst month for outages in Brewster County, with 103 events recorded during that month across the dataset.

Based on this history, Brewster County earns a Reliability Grade of F, placing it in the 16th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Brewster 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 Brewster County.

CountyGradeNational percentile
Carson CountyF16th
Briscoe CountyF16th
Martin CountyF16th
Willacy CountyF16th
Irion CountyF17th

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 Brewster County?

Between 2014 and 2025, Brewster County recorded 838 outage events, averaging 11.8 hours each.

What is Brewster County's reliability grade?

Brewster County has a Reliability Grade of F, in the 16th national percentile.

What was the worst power outage in Brewster County?

The worst outage on record started February 15, 2021 (Winter Storm Uri), lasting 77 hours and affecting up to 2,748 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.