Power outage history
San Juan County Utah
1.9hours
without power for the average customer in a typical year, 2018–2025
19th most of 23 in Utah 72% 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 San Juan's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2025 was the worst well-recorded year, at 3.8 hours for the average customer. Hatched years have a thin record and are left out of the averages.
San Juan, 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 |
|---|---|---|---|---|---|---|
| Mar 18, 2025 | Winter storm | 1,744 | 34% | 8.8 h | 8.5 h | 15k |
| Oct 31, 2017 | No storm report | 686 | 13% | 22 h | 30 h | 7.8k |
| Oct 26, 2017 | No storm report | 565 | 11% | 12 h | 12 h | 6.5k |
| Aug 28, 2019 | Wildfire | 2,090 | 41% | 2.2 h | 3.8 h | 3.6k |
| Oct 18, 2017 | No storm report | 577 | 11% | 5.8 h | 5.8 h | 3.3k |
| Aug 3, 2020 | No storm report | 895 | 17% | 4.0 h | 4.0 h | 3.1k |
| Jun 27, 2024 | Thunderstorms | 413 | 8% | 7.8 h | 7.2 h | 2.9k |
| Oct 17, 2017 | No storm report | 577 | 11% | 3.5 h | 3.5 h | 2.0k |
| Oct 11, 2025 | No storm report | 283 | 6% | 7.2 h | 7.2 h | 1.6k |
| Aug 12, 2018 | No storm report | 345 | 7% | 4.5 h | 12 h | 1.5k |
| Aug 21, 2018 | No storm report | 409 | 8% | 5.2 h | 3.8 h | 1.4k |
| Jun 28, 2024 | No storm report | 295 | 6% | 7.2 h | 3.5 h | 1.4k |
| Aug 1, 2023 | No storm report | 681 | 13% | 2.8 h | 3.2 h | 1.2k |
| Nov 6, 2023 | No storm report | 435 | 8% | 3.5 h | 2.8 h | 1.2k |
| Jul 28, 2021 | Flooding | 912 | 18% | 1.2 h | 1.8 h | 1.1k |
| Feb 18, 2020 | No storm report | 146 | 3% | 7.8 h | – | 1.1k |
| Jun 26, 2023 | No storm report | 292 | 6% | 3.8 h | 3.5 h | 1.1k |
| Feb 6, 2018 | No storm report | 347 | 7% | 3.0 h | 3.0 h | 1.0k |
| Jul 12, 2020 | Wildfire | 577 | 11% | 1.8 h | 1.5 h | 995 |
| Sep 1, 2021 | No storm report | 137 | 3% | 7.0 h | – | 949 |
| Sep 11, 2025 | No storm report | 165 | 3% | 5.2 h | – | 858 |
| Aug 25, 2024 | No storm report | 271 | 5% | 3.0 h | 1.8 h | 812 |
| Jun 21, 2024 | Tornadoes | 360 | 7% | 3.0 h | 2.2 h | 811 |
| Aug 17, 2018 | No storm report | 264 | 5% | 3.0 h | 2.0 h | 783 |
| Feb 14, 2019 | Winter storm | 514 | 10% | 7.2 h | 6.2 h | 779 |
| May 22, 2022 | No storm report | 171 | 3% | 4.5 h | – | 770 |
| Oct 12, 2017 | No storm report | 577 | 11% | 1.2 h | 1.2 h | 721 |
| Nov 28, 2017 | No storm report | 347 | 7% | 2.0 h | 2.0 h | 694 |
| Sep 1, 2018 | No storm report | 205 | 4% | 3.8 h | – | 638 |
| Jun 18, 2024 | No storm report | 174 | 3% | 3.8 h | – | 631 |
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 San Juan from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 56%
- Winter storm 27%
- Wildfire 9.1%
- Thunderstorms 5.4%
- Flooding 2.0%
- Tornadoes 1.3%
Who keeps the lights on
Utilities serving San Juan
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 |
| City of Blanding | UT | – | – | – | – | 12k |
| Navajo Tribal Utility Authority | State | 484 | 82 | 1.35 | 14.6 | 1.8k |
| Empire Electric Assn, Inc | Cooperative | – | – | – | 16.2 | 950 |
| WAPA-- Western Area Power Administration | Federal | – | – | – | – | – |
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
- Grand 8.8 h
- Garfield 4.3 h
- Wayne 3.3 h
- Navajo, AZ 3.2 h
- Emery 3.1 h
- San Juan, NM 3.0 h
- Mesa, CO 2.1 h
- San Juan (this county) 1.9 h
- Apache, AZ 1.8 h
- Coconino, AZ 1.8 h
- Montrose, CO 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 5,137 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 →