Power outage history
Navarro County Texas
3.9hours
without power for the average customer in a typical year, 2018–2025
211th most of 240 in Texas 41% 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 Navarro'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 9.5 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Navarro, 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 |
|---|---|---|---|---|---|---|
| Feb 15, 2021 | Winter storm | 8,529 | 21% | 3.3 d | 28 h | 319k |
| Jun 21, 2023 | Thunderstorms | 9,988 | 24% | 30 h | 25 h | 136k |
| Mar 2, 2023 | Thunderstorms | 5,333 | 13% | 22 h | 20 h | 47k |
| Jun 10, 2023 | Thunderstorms | 2,034 | 5% | 19 h | – | 22k |
| Feb 2, 2023 | Ice storm | 1,570 | 4% | 31 h | – | 21k |
| May 16, 2022 | No storm report | 2,788 | 7% | 15 h | 14 h | 21k |
| May 28, 2024 | Heat | 3,693 | 9% | 13 h | 13 h | 20k |
| Apr 13, 2018 | Thunderstorms | 3,534 | 9% | 11 h | 11 h | 14k |
| Sep 24, 2023 | Thunderstorms | 3,138 | 8% | 4.0 h | 3.5 h | 11k |
| Jun 10, 2018 | No storm report | 4,282 | 10% | 4.0 h | 3.5 h | 8.9k |
| May 22, 2024 | No storm report | 2,206 | 5% | 4.5 h | 2.0 h | 8.7k |
| Jun 1, 2019 | Thunderstorms | 2,667 | 6% | 8.2 h | 9.8 h | 8.2k |
| Aug 17, 2020 | Heat | 1,629 | 4% | 7.0 h | – | 8.2k |
| Jun 9, 2019 | Thunderstorms | 1,296 | 3% | 8.2 h | – | 7.7k |
| Mar 8, 2020 | No storm report | 2,026 | 5% | 4.5 h | – | 7.0k |
| Oct 4, 2023 | No storm report | 1,825 | 4% | 7.0 h | – | 6.2k |
| Apr 17, 2015 | No storm report | 1,565 | 4% | 4.0 h | – | 6.0k |
| Apr 18, 2015 | Thunderstorms | 1,772 | 4% | 9.0 h | – | 5.6k |
| Nov 25, 2021 | No storm report | 1,703 | 4% | 3.0 h | – | 5.0k |
| Apr 29, 2020 | Thunderstorms | 1,449 | 4% | 5.5 h | – | 5.0k |
| Feb 14, 2023 | No storm report | 765 | 2% | 9.5 h | – | 4.8k |
| Jun 11, 2023 | Thunderstorms | 1,111 | 3% | 6.8 h | – | 4.7k |
| Oct 28, 2021 | No storm report | 874 | 2% | 7.0 h | – | 4.5k |
| Oct 19, 2023 | No storm report | 631 | 2% | 6.5 h | – | 4.1k |
| May 26, 2025 | No storm report | 522 | 1% | 9.0 h | – | 3.4k |
| Aug 13, 2025 | Flooding | 1,000 | 2% | 6.5 h | – | 3.3k |
| Oct 21, 2019 | Thunderstorms | 3,174 | 8% | 1.5 h | 30 min | 3.3k |
| Mar 4, 2025 | Thunderstorms | 651 | 2% | 6.0 h | – | 3.1k |
| May 31, 2021 | No storm report | 789 | 2% | 4.2 h | – | 3.1k |
| Jun 7, 2023 | No storm report | 1,762 | 4% | 4.8 h | – | 3.0k |
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 Navarro from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Winter storm 39%
- Thunderstorms 34%
- No storm on record 19%
- Heat 4.1%
- Ice storm 2.5%
- Flooding 0.7%
Who keeps the lights on
Utilities serving Navarro
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 |
|---|---|---|---|---|---|---|
| Navarro County Elec Coop, Inc | Cooperative | – | – | – | 12.9 | 19k |
| Oncor Electric Delivery Company LLC | Investor Owned | 232 | 67 | 1.55 | – | – |
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 41,267 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 →