Power outage history
Utah County Utah
1.5hours
without power for the average customer in a typical year, 2018–2025
22nd most of 23 in Utah 77% 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 Utah's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2021 was the worst well-recorded year, at 2.5 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Utah, 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 |
|---|---|---|---|---|---|---|
| Apr 8, 2021 | No storm report | 3,063 | 1% | 4.0 d | – | 286k |
| Sep 5, 2017 | No storm report | 17,945 | 8% | 5.0 h | 3.0 h | 58k |
| Mar 17, 2025 | Winter storm | 6,370 | 3% | 7.8 h | 2.8 h | 49k |
| Jul 26, 2023 | Thunderstorms | 11,476 | 5% | 2.8 h | 48 min | 30k |
| Aug 4, 2023 | No storm report | 19,014 | 8% | 1.5 h | 48 min | 26k |
| Apr 1, 2020 | No storm report | 11,640 | 5% | 2.0 h | 48 min | 23k |
| Apr 13, 2020 | No storm report | 3,462 | 1% | 6.8 h | – | 23k |
| Apr 1, 2020 | No storm report | 11,565 | 5% | 2.2 h | 1.0 h | 21k |
| Nov 3, 2022 | No storm report | 2,918 | 1% | 7.2 h | – | 21k |
| Oct 6, 2022 | No storm report | 9,111 | 4% | 2.0 h | 1.5 h | 17k |
| Feb 27, 2022 | No storm report | 2,631 | 1% | 6.2 h | – | 16k |
| Nov 26, 2025 | No storm report | 19,897 | 8% | 48 min | 30 min | 15k |
| Jun 27, 2024 | Windstorm | 11,145 | 5% | 1.5 h | 1.5 h | 15k |
| May 27, 2023 | No storm report | 3,204 | 1% | 5.0 h | – | 14k |
| Jun 14, 2024 | No storm report | 10,952 | 5% | 2.0 h | 2.0 h | 13k |
| Jul 21, 2022 | No storm report | 6,118 | 3% | 2.0 h | 1.5 h | 12k |
| Jun 11, 2025 | No storm report | 3,659 | 2% | 3.0 h | – | 11k |
| Jun 15, 2023 | No storm report | 4,581 | 2% | 3.8 h | – | 11k |
| Apr 8, 2021 | No storm report | 3,025 | 1% | 3.5 h | – | 11k |
| Mar 23, 2017 | No storm report | 6,341 | 3% | 2.0 h | 1.0 h | 10k |
| Jan 11, 2021 | No storm report | 5,017 | 2% | 2.0 h | 1.5 h | 9.7k |
| Jul 25, 2023 | No storm report | 3,005 | 1% | 3.2 h | – | 9.7k |
| Aug 14, 2024 | Thunderstorms | 5,401 | 2% | 1.8 h | 30 min | 9.4k |
| Jan 21, 2019 | No storm report | 6,377 | 3% | 1.5 h | 2.2 h | 9.3k |
| Aug 30, 2021 | No storm report | 3,591 | 2% | 2.5 h | – | 9.0k |
| Oct 12, 2019 | No storm report | 7,245 | 3% | 1.2 h | 12 min | 9.0k |
| Feb 18, 2023 | No storm report | 7,122 | 3% | 1.2 h | 30 min | 8.9k |
| Jan 10, 2018 | No storm report | 11,160 | 5% | 1.2 h | 30 min | 8.8k |
| Oct 7, 2022 | No storm report | 3,534 | 1% | 2.5 h | – | 8.6k |
| Mar 2, 2024 | Winter storm | 2,894 | 1% | 3.0 h | – | 8.5k |
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 Utah from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 87%
- Winter storm 6.4%
- Thunderstorms 4.3%
- Windstorm 2.9%
Who keeps the lights on
Utilities serving Utah
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 |
| Payson City Corporation | UT | – | – | – | 12.2 | 47k |
| Provo City Corp | Municipal | 53 | 53 | 0.65 | 11.4 | 36k |
| Lehi City Corporation | Municipal | 42 | 42 | 0.45 | 10.1 | 28k |
| Salem City Corporation | UT | – | – | – | – | 24k |
| Spanish Fork City Corporation | Municipal | – | – | – | 10.4 | 17k |
| City of Springville | Municipal | 46 | – | 0.45 | 12.9 | 11k |
| Strawberry Electric Serv Dist | Political Subdivision | 62 | 62 | – | 15.3 | 3.6k |
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.
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 239,289 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 →