PowerOutageHistory
AReliability Grade

Washington CountyPower Outage History

20172025 · Colorado

Top 20% most reliable nationally — infrequent, short outages.

How grades are calculated

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Reliability Rank
Higher percentile = more reliable
Nationwide98th pct
In Colorado94th pct
Total events
34
Avg duration
2.5 hrs
Longest outage
20 hrs
Customers served
4,351
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Jun 21, 20203 hrs140 (3%)Unnamed event
Jun 6, 2020<1 hr138 (3%)Thunderstorm Wind
Aug 5, 20192 hrs130 (3%)Thunderstorm Wind
Jul 25, 20193 hrs129 (3%)Unnamed event
Jun 14, 20194 hrs128 (3%)Unnamed event

Over the 9 years from 2017 to 2025, Washington County recorded 34 distinct power outage events, averaging 2.5 hours per event.

The single worst outage on record in Washington County started June 21, 2020, lasting 3 hours and leaving up to 140 customers without power (3% of the county) at its peak.

August has historically been the worst month for outages in Washington County, with 7 events recorded during that month across the dataset.

Based on this history, Washington County earns a Reliability Grade of A, placing it in the 98th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Washington County's outage profile

See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.

Outage-prep kit

See our outage-prep guides.

Similar counties in Colorado

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

CountyGradeNational percentile
Baca CountyA98th
Rio Blanco CountyA99th
Gunnison CountyA97th
Montezuma CountyA100th
Grand CountyA95th

Most reliable counties in Colorado

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

CountyGradeNational percentile
Rio Blanco CountyA99th
Baca CountyA98th
Washington CountyA98th

Least reliable counties in Colorado

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

CountyGradeNational percentile
Clear Creek CountyF16th
Cheyenne CountyD20th
Jackson CountyD22nd

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 Washington County?

Between 2017 and 2025, Washington County recorded 34 outage events, averaging 2.5 hours each.

What is Washington County's reliability grade?

Washington County has a Reliability Grade of A, in the 98th national percentile.

What was the worst power outage in Washington County?

The worst outage on record started June 21, 2020, lasting 3 hours and affecting up to 140 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.