PowerOutageHistory
CReliability Grade

Hartley CountyPower Outage History

20142025 · Texas

Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.

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Reliability Rank
Fuller bar = more reliable
Nationwide60th pct
In Texas#63 of 251
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Total events
246
Avg duration
2.7 hrs
Longest outage
36 hrs
Customers served
2,249
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Aug 25, 2017<1 hr1,684 (75%)Unnamed event
Jun 15, 2022<1 hr1,504 (67%)Drought
Oct 29, 202023 hrs1,445 (64%)Heavy Snow
Jul 19, 20241 hrs918 (41%)Unnamed event
Jul 12, 2024<1 hr918 (41%)Unnamed event

Over the 12 years from 2014 to 2025, Hartley County recorded 246 distinct power outage events, averaging 2.7 hours per event.

The single worst outage on record in Hartley County started August 25, 2017, lasting less than 1 hour and leaving up to 1,684 customers without power (75% of the county) at its peak.

July has historically been the worst month for outages in Hartley County, with 34 events recorded during that month across the dataset.

Based on this history, Hartley County earns a Reliability Grade of C, placing it in the 60th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Hartley County's outage profile

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Similar counties in Texas

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

CountyGradeNational percentile
Potter CountyC59th
Oldham CountyC59th
Rockwall CountyC59th
Bowie CountyB60th
Wise CountyB60th

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.

FAQ

How often does power go out in Hartley County?

Between 2014 and 2025, Hartley County recorded 246 outage events, averaging 2.7 hours each.

What is Hartley County's reliability grade?

Hartley County has a Reliability Grade of C, in the 60th national percentile.

What was the worst power outage in Hartley County?

The worst outage on record started August 25, 2017, lasting less than 1 hour and affecting up to 1,684 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.