PowerOutageHistory
BReliability Grade

Cimarron CountyPower Outage History

20172025 · Oklahoma

Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.

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Reliability Rank
Fuller bar = more reliable
Nationwide66th pct
In Oklahoma#16 of 77
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Total events
305
Avg duration
1.8 hrs
Longest outage
22 hrs
Customers served
3,661
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Jun 28, 20192 hrs2,679 (73%)Unnamed event
Mar 19, 20258 hrs2,186 (60%)High Wind
Oct 7, 20184 hrs2,123 (58%)Unnamed event
Aug 12, 20239 hrs2,066 (56%)Thunderstorm Wind
Dec 27, 201813 hrs1,517 (41%)Winter Storm

Over the 9 years from 2017 to 2025, Cimarron County recorded 305 distinct power outage events, averaging 1.8 hours per event.

The single worst outage on record in Cimarron County started June 28, 2019, lasting 2 hours and leaving up to 2,679 customers without power (73% of the county) at its peak.

June has historically been the worst month for outages in Cimarron County, with 54 events recorded during that month across the dataset.

Based on this history, Cimarron County earns a Reliability Grade of B, placing it in the 66th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Cimarron County's outage profile

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Similar counties in Oklahoma

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

CountyGradeNational percentile
Washington CountyB67th
Beaver CountyB67th
Cleveland CountyB67th
Woodward CountyB64th
Carter CountyB63rd

Most reliable counties in Oklahoma

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

CountyGradeNational percentile
Texas CountyA96th
Kay CountyA95th
Greer CountyA89th

Least reliable counties in Oklahoma

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

CountyGradeNational percentile
Caddo CountyF4th
Washita CountyF10th
Oklahoma CountyF15th

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 Cimarron County?

Between 2017 and 2025, Cimarron County recorded 305 outage events, averaging 1.8 hours each.

What is Cimarron County's reliability grade?

Cimarron County has a Reliability Grade of B, in the 66th national percentile.

What was the worst power outage in Cimarron County?

The worst outage on record started June 28, 2019, lasting 2 hours and affecting up to 2,679 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.