PowerOutageHistory
B

Washington County Power Outage History

20142025 · Oklahoma

Better than average — fewer or shorter outages than most counties. How grades are calculated

Total events
690
Avg duration
2.0 hrs
Longest outage
71 hrs
National percentile
67th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Jul 22, 201921 hrs8,253 (26%)Excessive Heat
May 7, 202471 hrs6,619 (21%)Tornado
May 24, 202532 hrs6,232 (20%)Hail
Oct 9, 20171 hrs6,142 (19%)Unnamed event
Jun 18, 202540 hrs5,291 (17%)Thunderstorm Wind

Over the 12 years from 2014 to 2025, Washington County recorded 690 distinct power outage events, averaging 2.0 hours per event.

The single worst outage on record in Washington County started July 22, 2019 (Excessive Heat), lasting 21 hours and leaving up to 8,253 customers without power (26% of the county) at its peak.

May has historically been the worst month for outages in Washington County, with 106 events recorded during that month across the dataset.

Based on this history, Washington County earns a Reliability Grade of B, placing it in the 67th 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 Oklahoma

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

CountyGradeNational percentile
Cimarron CountyB66th
Beaver CountyB67th
Cleveland CountyB67th
Woodward CountyB64th
Stephens CountyB69th

FAQ

How often does power go out in Washington County?

Between 2014 and 2025, Washington County recorded 690 outage events, averaging 2.0 hours each.

What is Washington County's reliability grade?

Washington County has a Reliability Grade of B, in the 67th national percentile.

What was the worst power outage in Washington County?

The worst outage on record started July 22, 2019 (Excessive Heat), lasting 21 hours and affecting up to 8,253 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.