Power outage history
Jefferson County Arkansas
20hours
without power for the average customer in a typical year, 2018–2025
10th most of 73 in Arkansas 3.0× 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 Jefferson'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 2.9 days for the average customer. Hatched years have a thin record and are left out of the averages.
Jefferson, 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 12, 2020 | Thunderstorms | 24,409 | 72% | 6.7 d | 5.2 d | 2.1M |
| Feb 2, 2023 | Ice storm | 12,448 | 37% | 4.8 d | 4.0 d | 634k |
| Jul 14, 2016 | Thunderstorms | 11,260 | 33% | 2.1 d | 41 h | 210k |
| Jun 25, 2023 | Thunderstorms | 6,580 | 19% | 2.8 d | 2.3 d | 133k |
| Jan 11, 2024 | Thunderstorms | 6,010 | 18% | 39 h | 14 h | 70k |
| Jun 3, 2024 | No storm report | 6,837 | 20% | 25 h | 10 h | 63k |
| May 24, 2024 | Thunderstorms | 4,428 | 13% | 21 h | 11 h | 57k |
| Dec 10, 2021 | Thunderstorms | 4,635 | 14% | 18 h | 9.8 h | 50k |
| Aug 18, 2024 | Thunderstorms | 1,725 | 5% | 22 h | 9.0 h | 29k |
| Sep 9, 2019 | Thunderstorms | 2,351 | 7% | 21 h | 16 h | 26k |
| May 28, 2017 | No storm report | 1,809 | 5% | 32 h | 34 h | 25k |
| Jun 18, 2023 | Thunderstorms | 1,754 | 5% | 30 h | 34 h | 24k |
| Apr 30, 2017 | No storm report | 3,945 | 12% | 13 h | 6.8 h | 24k |
| Jul 7, 2025 | Thunderstorms | 1,362 | 4% | 28 h | – | 23k |
| Apr 23, 2020 | No storm report | 1,758 | 5% | 14 h | 5.2 h | 22k |
| Jan 11, 2020 | Thunderstorms | 2,044 | 6% | 18 h | 19 h | 21k |
| Feb 8, 2023 | No storm report | 2,429 | 7% | 15 h | 11 h | 20k |
| Aug 13, 2021 | No storm report | 3,072 | 9% | 16 h | 15 h | 20k |
| Mar 27, 2021 | Thunderstorms | 2,990 | 9% | 19 h | 12 h | 20k |
| May 8, 2019 | Tornadoes | 1,234 | 4% | 24 h | – | 19k |
| Jul 29, 2022 | No storm report | 3,146 | 9% | 14 h | 7.2 h | 18k |
| Nov 24, 2025 | No storm report | 1,359 | 4% | 15 h | – | 17k |
| Feb 3, 2022 | Winter storm | 2,445 | 7% | 13 h | 11 h | 15k |
| May 23, 2019 | No storm report | 2,540 | 7% | 13 h | 30 min | 14k |
| Apr 2, 2025 | No storm report | 1,290 | 4% | 17 h | – | 14k |
| May 15, 2022 | Thunderstorms | 1,536 | 5% | 20 h | – | 14k |
| Jul 3, 2020 | No storm report | 1,232 | 4% | 11 h | – | 13k |
| May 30, 2016 | No storm report | 1,561 | 5% | 17 h | – | 11k |
| Apr 3, 2025 | Thunderstorms | 866 | 3% | 22 h | – | 11k |
| Jan 22, 2018 | Thunderstorms | 2,184 | 6% | 7.8 h | 10 h | 11k |
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 Jefferson from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 62%
- No storm on record 21%
- Ice storm 15%
- Winter storm 1.1%
- Tropical storm 0.8%
- Flooding 0.6%
Who keeps the lights on
Utilities serving Jefferson
As each utility reports to the Energy Information Administration for its whole Arkansas territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Entergy Arkansas LLC | Investor Owned | 518 | 252 | 2.24 | 13.4 | 612k |
| First Electric Coop Corp | Cooperative | 646 | 222 | 2.54 | 12.9 | 97k |
| C & L Electric Coop Corp | Cooperative | – | – | – | 13.8 | 20k |
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 33,927 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 →