PowerOutageHistory
C

Coahoma County Power Outage History

20142025 · Mississippi

Average — typical outage frequency and duration nationally. How grades are calculated

Total events
352
Avg duration
4.2 hrs
Longest outage
71 hrs
National percentile
49th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Apr 13, 202071 hrs2,678 (22%)Thunderstorm Wind
Apr 16, 202025 hrs1,742 (14%)Thunderstorm Wind
Feb 2, 202361 hrs1,664 (14%)Ice Storm
Mar 30, 202246 hrs1,588 (13%)Thunderstorm Wind
May 27, 20153 hrs1,381 (11%)Unnamed event

Over the 12 years from 2014 to 2025, Coahoma County recorded 352 distinct power outage events, averaging 4.2 hours per event.

The single worst outage on record in Coahoma County started April 13, 2020 (Thunderstorm Wind), lasting 71 hours and leaving up to 2,678 customers without power (22% of the county) at its peak.

June has historically been the worst month for outages in Coahoma County, with 46 events recorded during that month across the dataset.

Based on this history, Coahoma County earns a Reliability Grade of C, placing it in the 49th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Coahoma County's outage profile

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Outage-prep kit

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Similar counties in Mississippi

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

CountyGradeNational percentile
Winston CountyC49th
Benton CountyC51st
Tippah CountyC46th
Carroll CountyC45th
Lauderdale CountyC45th

FAQ

How often does power go out in Coahoma County?

Between 2014 and 2025, Coahoma County recorded 352 outage events, averaging 4.2 hours each.

What is Coahoma County's reliability grade?

Coahoma County has a Reliability Grade of C, in the 49th national percentile.

What was the worst power outage in Coahoma County?

The worst outage on record started April 13, 2020 (Thunderstorm Wind), lasting 71 hours and affecting up to 2,678 customers.

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.