Washington CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 31, 2017 | <1 hr | 10,116 (12%) | Unnamed event |
| Nov 9, 2018 | 6 hrs | 5,751 (7%) | Unnamed event |
| Dec 18, 2018 | 7 hrs | 5,734 (7%) | Unnamed event |
| Sep 5, 2017 | 5 hrs | 5,504 (7%) | Unnamed event |
| Jan 31, 2023 | 2 hrs | 5,475 (6%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Washington County, Utah that day.
Over the 9 years from 2017 to 2025, Washington County recorded 314 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Washington County started August 31, 2017, lasting less than 1 hour and leaving up to 10,116 customers without power (12% of the county) at its peak.
July has historically been the worst month for outages in Washington County, with 42 events recorded during that month across the dataset.
Based on this history, Washington County earns a Reliability Grade of A, placing it in the 92nd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Utah
Counties with the closest reliability grade and national percentile to Washington County.
| County | Grade | National percentile |
|---|---|---|
| Wasatch County | A | 92nd |
| Utah County | A | 91st |
| Wayne County | A | 94th |
| Uintah County | A | 88th |
| Duchesne County | A | 97th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Washington County?
Between 2017 and 2025, Washington County recorded 314 outage events, averaging 2.7 hours each.
What is Washington County's reliability grade?
Washington County has a Reliability Grade of A, in the 92nd national percentile.
What was the worst power outage in Washington County?
The worst outage on record started August 31, 2017, lasting less than 1 hour and affecting up to 10,116 customers.