Power outage history
Laramie County Wyoming
1.0hours
without power for the average customer in a typical year, 2018–2025
17th most of 20 in Wyoming 84% 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 Laramie'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 2.4 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Laramie, 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 15, 2020 | Ice storm | 19,300 | 36% | 31 h | 4.5 h | 74k |
| Jun 2, 2025 | Thunderstorms | 3,011 | 6% | 5.0 h | 1.5 h | 15k |
| Aug 31, 2019 | No storm report | 5,756 | 11% | 6.0 h | 1.0 h | 13k |
| Mar 14, 2021 | Winter storm | 1,856 | 4% | 7.0 h | – | 12k |
| Apr 20, 2019 | No storm report | 3,022 | 6% | 4.2 h | 3.2 h | 11k |
| Nov 4, 2025 | No storm report | 4,879 | 9% | 1.8 h | 48 min | 8.5k |
| Mar 10, 2021 | No storm report | 2,471 | 5% | 3.5 h | – | 7.7k |
| Mar 31, 2023 | Windstorm | 1,549 | 3% | 6.0 h | – | 6.8k |
| Dec 25, 2023 | Windstorm | 3,951 | 7% | 2.0 h | 1.5 h | 6.3k |
| Oct 19, 2016 | No storm report | 1,580 | 3% | 3.8 h | – | 5.5k |
| Mar 21, 2016 | No storm report | 1,956 | 4% | 2.8 h | – | 5.4k |
| Jul 11, 2022 | No storm report | 2,576 | 5% | 2.0 h | – | 5.1k |
| Jul 21, 2016 | No storm report | 2,847 | 5% | 1.8 h | 8.8 h | 5.0k |
| Feb 3, 2023 | Windstorm | 4,086 | 8% | 1.0 h | 2.0 h | 4.1k |
| Jul 18, 2025 | No storm report | 2,221 | 4% | 1.8 h | – | 3.9k |
| Apr 30, 2017 | No storm report | 3,054 | 6% | 1.2 h | 1.2 h | 3.8k |
| Jul 13, 2023 | No storm report | 1,245 | 2% | 3.0 h | – | 3.7k |
| Jan 13, 2021 | Windstorm | 2,455 | 5% | 1.5 h | – | 3.6k |
| Mar 14, 2025 | Windstorm | 1,594 | 3% | 3.8 h | – | 3.1k |
| Dec 21, 2022 | Winter storm | 1,448 | 3% | 2.0 h | – | 2.9k |
| Jun 8, 2021 | Thunderstorms | 2,881 | 5% | 1.0 h | 1.5 h | 2.9k |
| May 8, 2022 | No storm report | 1,439 | 3% | 2.0 h | – | 2.9k |
| Jan 26, 2025 | No storm report | 720 | 1% | 3.8 h | – | 2.7k |
| Mar 15, 2021 | No storm report | 1,810 | 3% | 2.2 h | – | 2.6k |
| Sep 25, 2025 | No storm report | 1,129 | 2% | 3.0 h | – | 2.3k |
| Jun 26, 2024 | No storm report | 984 | 2% | 2.2 h | – | 2.2k |
| Jan 3, 2021 | Windstorm | 1,195 | 2% | 1.8 h | – | 2.1k |
| Nov 14, 2022 | No storm report | 1,980 | 4% | 1.0 h | – | 2.0k |
| Jan 13, 2024 | Winter storm | 668 | 1% | 2.8 h | – | 1.8k |
| Jul 27, 2025 | No storm report | 722 | 1% | 2.5 h | – | 1.8k |
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 Laramie from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 39%
- Ice storm 30%
- Windstorm 13%
- Winter storm 10%
- Thunderstorms 7.7%
Who keeps the lights on
Utilities serving Laramie
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 |
|---|---|---|---|---|---|---|
| Cheyenne Light Fuel & Power | Investor Owned | 54 | 38 | 0.76 | 17.3 | 44k |
| Wyrulec Company | WY | 692 | 164 | 1.80 | 15.4 | 31k |
| Wheatland Rural Elec Assn, Inc | WY | – | – | – | – | 28k |
| High West Energy, Inc | Cooperative | – | – | – | 14.7 | 5.7k |
| City of Pine Bluffs | WY | – | – | – | – | 4.6k |
| 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
- Weld, CO 3.8 h
- Albany 3.3 h
- Platte 2.3 h
- Larimer, CO 1.8 h
- Laramie (this county) 1.0 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 52,987 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 →