Power outage history
Washakie County Wyoming
1.4hours
without power for the average customer in a typical year, 2018–2025
15th most of 20 in Wyoming 79% 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 Washakie'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 4.7 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Washakie, 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 19, 2025 | No storm report | 2,607 | 88% | 1.2 h | 3.8 h | 3.3k |
| Jul 4, 2025 | Thunderstorms | 1,284 | 43% | 5.2 h | 12 min | 3.2k |
| May 26, 2024 | No storm report | 1,464 | 49% | 2.0 h | 1.8 h | 2.6k |
| Apr 17, 2018 | No storm report | 353 | 12% | 8.0 h | 1.8 h | 2.3k |
| Jul 19, 2025 | No storm report | 1,221 | 41% | 1.8 h | 1.2 h | 2.1k |
| Nov 5, 2017 | No storm report | 2,699 | 91% | 48 min | 48 min | 2.0k |
| Jul 30, 2025 | Wildfire | 283 | 10% | 7.5 h | 6.5 h | 1.4k |
| Nov 13, 2017 | No storm report | 354 | 12% | 2.8 h | 2.8 h | 974 |
| Jul 9, 2018 | Wildfire | 55 | 2% | 18 h | – | 881 |
| Nov 2, 2017 | Winter storm | 319 | 11% | 7.2 h | 3.2 h | 837 |
| Jun 14, 2025 | No storm report | 412 | 14% | 2.0 h | 1.0 h | 823 |
| Nov 6, 2017 | No storm report | 253 | 9% | 7.8 h | 7.8 h | 624 |
| Aug 23, 2021 | No storm report | 142 | 5% | 4.0 h | – | 522 |
| Oct 4, 2019 | No storm report | 96 | 3% | 6.2 h | – | 494 |
| Jun 14, 2024 | Thunderstorms | 85 | 3% | 5.8 h | – | 484 |
| Aug 23, 2025 | No storm report | 283 | 10% | 3.2 h | 1.0 h | 423 |
| Mar 4, 2019 | No storm report | 676 | 23% | 30 min | 30 min | 338 |
| Apr 29, 2018 | No storm report | 158 | 5% | 1.8 h | 1.8 h | 274 |
| Jul 6, 2023 | No storm report | 248 | 8% | 1.5 h | 1.2 h | 269 |
| Dec 17, 2025 | Windstorm | 182 | 6% | 3.5 h | 2.0 h | 268 |
| Jan 25, 2021 | No storm report | 176 | 6% | 1.5 h | 1.5 h | 263 |
| Aug 21, 2025 | No storm report | 150 | 5% | 1.8 h | 1.8 h | 262 |
| Mar 18, 2025 | Winter storm | 61 | 2% | 5.5 h | – | 242 |
| Feb 2, 2020 | Winter storm | 588 | 20% | 30 min | 30 min | 231 |
| Jun 1, 2025 | No storm report | 147 | 5% | 1.5 h | – | 220 |
| Oct 11, 2019 | No storm report | 95 | 3% | 2.2 h | – | 214 |
| Aug 26, 2024 | No storm report | 89 | 3% | 2.2 h | – | 200 |
| Apr 7, 2024 | Winter storm | 40 | 1% | 5.2 h | – | 200 |
| Aug 8, 2024 | No storm report | 44 | 1% | 5.0 h | – | 186 |
| Aug 27, 2024 | No storm report | 89 | 3% | 2.0 h | – | 178 |
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 Washakie from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 71%
- Thunderstorms 16%
- Wildfire 9.2%
- Winter storm 3.0%
- Windstorm 1.1%
Who keeps the lights on
Utilities serving Washakie
As each utility reports to the Energy Information Administration for its whole Wyoming 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 | 195 | 91 | 1.37 | 15.1 | 119k |
| Big Horn Rural Electric Co | WY | 208 | – | 1.29 | 14.9 | 31k |
| High Plains Power Inc | Cooperative | 320 | 263 | – | 14.2 | 13k |
| 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
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 2,958 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 →