Weber County Power Outage History
2017–2025 · Utah
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 8, 2020 | 180 hrs | 40,536 (38%) | Unnamed event |
| Jun 12, 2018 | 0 hrs | 35,083 (33%) | Unnamed event |
| Oct 14, 2017 | 0 hrs | 32,640 (31%) | Unnamed event |
| Aug 13, 2025 | 7 hrs | 31,394 (30%) | Unnamed event |
| Sep 2, 2017 | 1 hrs | 26,663 (25%) | Unnamed event |
Over the 9 years from 2017 to 2025, Weber County recorded 1,103 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Weber County started September 8, 2020, lasting 180 hours and leaving up to 40,536 customers without power (38% of the county) at its peak.
August has historically been the worst month for outages in Weber County, with 148 events recorded during that month across the dataset.
Based on this history, Weber County earns a Reliability Grade of C, placing it in the 47th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Utah
Counties with the closest reliability grade and national percentile to Weber County.
| County | Grade | National percentile |
|---|---|---|
| Piute County | D | 39th |
| Summit County | D | 36th |
| Grand County | C | 58th |
| Beaver County | D | 34th |
| Box Elder County | B | 62nd |
FAQ
How often does power go out in Weber County?
Between 2017 and 2025, Weber County recorded 1,103 outage events, averaging 3.0 hours each.
What is Weber County's reliability grade?
Weber County has a Reliability Grade of C, in the 47th national percentile.
What was the worst power outage in Weber County?
The worst outage on record started September 8, 2020, lasting 180 hours and affecting up to 40,536 customers.