Power outage history
Hemphill County Texas
6.1hours
without power for the average customer in a typical year, 2018–2025
close to 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 Hemphill'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 6.1 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Hemphill, 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 |
|---|---|---|---|---|---|---|
| Oct 28, 2020 | Winter storm | 1,189 | 100% | 2.3 d | 14 h | 26k |
| Oct 24, 2019 | No storm report | 1,189 | 100% | 5.8 h | 4.0 h | 4.7k |
| Nov 16, 2015 | Tornadoes | 1,189 | 100% | 5.8 h | 3.8 h | 4.6k |
| Apr 14, 2025 | No storm report | 1,189 | 100% | 2.8 h | 7.0 h | 3.3k |
| Jun 22, 2018 | Thunderstorms | 1,189 | 100% | 2.5 h | 2.2 h | 2.7k |
| Mar 13, 2021 | Thunderstorms | 1,189 | 100% | 2.2 h | 1.5 h | 1.9k |
| Aug 12, 2019 | No storm report | 1,189 | 100% | 1.8 h | 5.2 h | 1.8k |
| Sep 10, 2025 | No storm report | 1,189 | 100% | 1.5 h | 1.5 h | 1.6k |
| Oct 30, 2020 | No storm report | 26 | 2% | 2.0 d | – | 1.2k |
| Feb 27, 2024 | Wildfire | 414 | 35% | 4.0 h | 3.2 h | 1.0k |
| Dec 22, 2022 | No storm report | 400 | 34% | 2.5 h | 2.2 h | 996 |
| Jun 22, 2020 | No storm report | 1,189 | 100% | 1.0 h | 11 h | 951 |
| Jun 10, 2020 | Windstorm | 1,189 | 100% | 48 min | 48 min | 892 |
| Mar 17, 2021 | Winter storm | 137 | 12% | 12 h | 8.0 h | 888 |
| Mar 13, 2019 | Windstorm | 1,189 | 100% | 1.5 h | 1.5 h | 818 |
| Mar 14, 2025 | Windstorm | 27 | 2% | 30 h | – | 800 |
| Jul 6, 2018 | No storm report | 321 | 27% | 2.5 h | 1.8 h | 754 |
| Mar 19, 2025 | Windstorm | 73 | 6% | 11 h | 5.5 h | 674 |
| Apr 16, 2020 | Windstorm | 307 | 26% | 1.8 h | 48 min | 536 |
| Jun 2, 2017 | No storm report | 455 | 38% | 1.0 h | 12 min | 454 |
| Jun 4, 2023 | No storm report | 448 | 38% | 1.0 h | 1.0 h | 448 |
| Feb 28, 2024 | Wildfire | 36 | 3% | 14 h | – | 371 |
| Mar 10, 2016 | No storm report | 504 | 42% | 48 min | – | 344 |
| Dec 29, 2025 | No storm report | 143 | 12% | 2.0 h | 2.0 h | 286 |
| Dec 28, 2015 | Winter storm | 83 | 7% | 5.0 h | 11 h | 282 |
| May 16, 2016 | Tornadoes | 327 | 28% | 1.2 h | 5.8 h | 265 |
| May 16, 2015 | No storm report | 91 | 8% | 4.5 h | 3.2 h | 239 |
| May 24, 2019 | Thunderstorms | 67 | 6% | 4.2 h | 4.2 h | 233 |
| Dec 27, 2015 | Winter storm | 88 | 7% | 2.5 h | 15 h | 220 |
| Jan 24, 2025 | No storm report | 81 | 7% | 2.0 h | 5.0 h | 162 |
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 Hemphill from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Winter storm 49%
- No storm on record 32%
- Thunderstorms 8.9%
- Windstorm 7.0%
- Wildfire 2.7%
Who keeps the lights on
Utilities serving Hemphill
As each utility reports to the Energy Information Administration for its whole Texas territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Southwestern Public Service Co | Investor Owned | 441 | 151 | 1.71 | 13.9 | 224k |
| Greenbelt Electric Coop, Inc | Cooperative | – | – | – | 17.9 | 3.9k |
| North Plains Electric Coop Inc | Cooperative | 890 | 336 | – | 11.5 | 3.1k |
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 1,189 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 →