Davis County Power Outage History
2017–2025 · Utah
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 8, 2020 | 156 hrs | 39,446 (30%) | Unnamed event |
| Sep 2, 2017 | 1 hrs | 19,340 (15%) | Unnamed event |
| Jul 1, 2024 | 2 hrs | 17,786 (13%) | Unnamed event |
| Oct 14, 2017 | 0 hrs | 17,735 (13%) | Unnamed event |
| Jun 12, 2018 | 0 hrs | 16,562 (13%) | Unnamed event |
Over the 9 years from 2017 to 2025, Davis County recorded 773 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Davis County started September 8, 2020, lasting 156 hours and leaving up to 39,446 customers without power (30% of the county) at its peak.
August has historically been the worst month for outages in Davis County, with 106 events recorded during that month across the dataset.
Based on this history, Davis County earns a Reliability Grade of A, placing it in the 80th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Davis County's outage profile
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Similar counties in Utah
Counties with the closest reliability grade and national percentile to Davis County.
| County | Grade | National percentile |
|---|---|---|
| Cache County | A | 84th |
| San Juan County | A | 85th |
| Garfield County | B | 75th |
| Uintah County | A | 88th |
| Sevier County | B | 72nd |
FAQ
How often does power go out in Davis County?
Between 2017 and 2025, Davis County recorded 773 outage events, averaging 2.3 hours each.
What is Davis County's reliability grade?
Davis County has a Reliability Grade of A, in the 80th national percentile.
What was the worst power outage in Davis County?
The worst outage on record started September 8, 2020, lasting 156 hours and affecting up to 39,446 customers.