Power outage history
Box Elder County Utah
4.3hours
without power for the average customer in a typical year, 2018–2025
7th most of 23 in Utah 35% below the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Box Elder's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2020 was the worst well-recorded year, at 9.6 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Box Elder, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Sep 8, 2020 | No storm report | 3,185 | 14% | 5.8 d | 2.7 d | 115k |
| Jul 27, 2024 | Thunderstorms | 7,571 | 33% | 3.5 h | 1.5 h | 25k |
| Nov 28, 2019 | No storm report | 3,428 | 15% | 15 h | 6.5 h | 19k |
| May 30, 2020 | Thunderstorms | 3,596 | 16% | 14 h | 2.8 h | 16k |
| Aug 8, 2017 | No storm report | 4,816 | 21% | 4.8 h | 4.2 h | 11k |
| Jun 6, 2020 | Thunderstorms | 1,354 | 6% | 12 h | 12 h | 8.5k |
| Jun 6, 2020 | Thunderstorms | 5,085 | 22% | 2.8 h | 2.2 h | 7.5k |
| Sep 8, 2022 | No storm report | 716 | 3% | 11 h | – | 7.5k |
| Feb 5, 2024 | No storm report | 1,375 | 6% | 5.2 h | 3.0 h | 7.2k |
| Mar 23, 2022 | No storm report | 5,562 | 24% | 1.2 h | 48 min | 6.8k |
| May 23, 2019 | No storm report | 1,815 | 8% | 13 h | 4.5 h | 6.2k |
| Sep 18, 2017 | No storm report | 4,822 | 21% | 1.2 h | 1.2 h | 6.0k |
| May 1, 2025 | No storm report | 1,934 | 8% | 6.0 h | 15 h | 6.0k |
| Jun 4, 2018 | No storm report | 877 | 4% | 10 h | – | 5.8k |
| Dec 2, 2023 | Winter storm | 906 | 4% | 8.2 h | – | 5.7k |
| Oct 18, 2019 | No storm report | 2,374 | 10% | 4.0 h | 3.8 h | 5.7k |
| Aug 7, 2024 | No storm report | 1,769 | 8% | 6.2 h | 5.8 h | 5.4k |
| Jul 15, 2023 | No storm report | 886 | 4% | 6.0 h | – | 5.3k |
| Sep 19, 2020 | No storm report | 1,530 | 7% | 3.5 h | 2.2 h | 5.3k |
| Jul 31, 2025 | No storm report | 1,009 | 4% | 7.0 h | – | 5.1k |
| Jan 19, 2018 | No storm report | 1,608 | 7% | 6.5 h | 8.8 h | 5.0k |
| Sep 16, 2020 | No storm report | 1,898 | 8% | 2.5 h | 2.2 h | 4.7k |
| Sep 14, 2022 | No storm report | 758 | 3% | 7.0 h | – | 4.7k |
| Mar 22, 2023 | Winter storm | 1,382 | 6% | 3.8 h | 4.2 h | 4.6k |
| Jan 31, 2021 | No storm report | 1,819 | 8% | 2.5 h | 48 min | 4.5k |
| Jul 30, 2024 | No storm report | 2,026 | 9% | 5.8 h | 3.5 h | 4.5k |
| Nov 4, 2023 | No storm report | 1,372 | 6% | 3.2 h | 30 min | 4.5k |
| Jul 25, 2024 | Thunderstorms | 984 | 4% | 8.0 h | – | 4.3k |
| May 12, 2025 | No storm report | 753 | 3% | 5.8 h | – | 4.3k |
| Jul 27, 2024 | Thunderstorms | 1,573 | 7% | 4.8 h | 4.2 h | 4.3k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Box Elder from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 79%
- Thunderstorms 15%
- Winter storm 4.2%
- Windstorm 1.3%
Who keeps the lights on
Utilities serving Box Elder
As each utility reports to the Energy Information Administration for its whole Utah territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| PacifiCorp | Investor Owned | 118 | 102 | 0.90 | 13.5 | 969k |
| Brigham City Corporation | UT | – | – | – | 10.5 | 51k |
| Raft Rural Elec Coop Inc | Cooperative | – | – | – | 11.3 | 386 |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
- Weber 6.5 h
- Oneida, ID 4.9 h
- Box Elder (this county) 4.3 h
- Tooele 3.6 h
- Elko, NV 2.8 h
- Davis 2.7 h
- Cache 2.1 h
- Cassia, ID 1.5 h
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 23,064 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →