PowerOutageHistory
DReliability Grade

McLean CountyPower Outage History

20142025 · Kentucky

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
Nationwide31st pct
In Kentucky40th pct
Total events
501
Avg duration
3.1 hrs
Longest outage
427 hrs
Customers served
5,609
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Mar 3, 202381 hrs2,655 (47%)Strong Wind
Nov 5, 20228 hrs2,250 (40%)Drought
Dec 11, 202144 hrs1,994 (36%)Unnamed event
Jan 21, 2020<1 hr1,800 (32%)Unnamed event
May 26, 202483 hrs1,596 (28%)Tornado

Over the 12 years from 2014 to 2025, McLean County recorded 501 distinct power outage events, averaging 3.1 hours per event.

The single worst outage on record in McLean County started March 3, 2023 (Strong Wind), lasting 81 hours and leaving up to 2,655 customers without power (47% of the county) at its peak.

July has historically been the worst month for outages in McLean County, with 63 events recorded during that month across the dataset.

Based on this history, McLean County earns a Reliability Grade of D, placing it in the 31st percentile nationally for grid reliability (higher percentile = more reliable).

Sized for McLean County's outage profile

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Outage-prep kit

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Similar counties in Kentucky

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

CountyGradeNational percentile
Hopkins CountyD31st
Monroe CountyD31st
Trimble CountyD31st
Logan CountyD30th
Russell CountyD31st

Most reliable counties in Kentucky

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

CountyGradeNational percentile
Taylor CountyA96th
Webster CountyA92nd
Green CountyA91st

Least reliable counties in Kentucky

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

CountyGradeNational percentile
Leslie CountyF0th
Lawrence CountyF1st
Knott CountyF2nd

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 McLean County?

Between 2014 and 2025, McLean County recorded 501 outage events, averaging 3.1 hours each.

What is McLean County's reliability grade?

McLean County has a Reliability Grade of D, in the 31st national percentile.

What was the worst power outage in McLean County?

The worst outage on record started March 3, 2023 (Strong Wind), lasting 81 hours and affecting up to 2,655 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.