Box Elder County Power Outage History
2017–2025 · Utah
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 28, 2024 | 4 hrs | 7,571 (32%) | Thunderstorm Wind |
| Mar 23, 2022 | 1 hrs | 5,562 (24%) | Unnamed event |
| Jun 6, 2020 | 3 hrs | 5,085 (22%) | Thunderstorm Wind |
| Sep 19, 2017 | 1 hrs | 4,822 (20%) | Unnamed event |
| Aug 8, 2017 | 5 hrs | 4,816 (20%) | Unnamed event |
Over the 9 years from 2017 to 2025, Box Elder County recorded 496 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Box Elder County started July 28, 2024 (Thunderstorm Wind), lasting 4 hours and leaving up to 7,571 customers without power (32% of the county) at its peak.
August has historically been the worst month for outages in Box Elder County, with 79 events recorded during that month across the dataset.
Based on this history, Box Elder County earns a Reliability Grade of B, placing it in the 62nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Box Elder County's outage profile
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Similar counties in Utah
Counties with the closest reliability grade and national percentile to Box Elder County.
| County | Grade | National percentile |
|---|---|---|
| Millard County | B | 63rd |
| Sanpete County | B | 65th |
| Iron County | B | 66th |
| Grand County | C | 58th |
| Tooele County | B | 70th |
FAQ
How often does power go out in Box Elder County?
Between 2017 and 2025, Box Elder County recorded 496 outage events, averaging 2.9 hours each.
What is Box Elder County's reliability grade?
Box Elder County has a Reliability Grade of B, in the 62nd national percentile.
What was the worst power outage in Box Elder County?
The worst outage on record started July 28, 2024 (Thunderstorm Wind), lasting 4 hours and affecting up to 7,571 customers.