Power outage history
Jones County Iowa
7.3hours
without power for the average customer in a typical year, 2018–2025
16th most of 98 in Iowa 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 Jones'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 42 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Jones, 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 |
|---|---|---|---|---|---|---|
| Aug 10, 2020 | Thunderstorms | 5,250 | 62% | 7.7 d | 14 h | 339k |
| Jul 11, 2025 | Tornadoes | 3,762 | 44% | 24 h | 12 h | 24k |
| Jul 28, 2023 | Thunderstorms | 1,644 | 19% | 15 h | 2.2 h | 8.8k |
| Jul 6, 2016 | Thunderstorms | 3,120 | 37% | 8.2 h | 3.0 h | 8.8k |
| Feb 17, 2024 | No storm report | 107 | 1% | 2.6 d | – | 6.6k |
| Jun 13, 2018 | No storm report | 456 | 5% | 12 h | 12 h | 5.6k |
| Jan 11, 2020 | Winter storm | 530 | 6% | 11 h | 10 h | 5.3k |
| Dec 15, 2021 | Windstorm | 3,110 | 37% | 6.5 h | 1.0 h | 5.0k |
| May 14, 2018 | Thunderstorms | 3,163 | 37% | 1.0 h | 30 min | 2.8k |
| Mar 31, 2023 | Tornadoes | 1,172 | 14% | 6.0 h | 2.5 h | 2.8k |
| Jul 11, 2020 | Thunderstorms | 768 | 9% | 6.2 h | 6.0 h | 2.6k |
| Jul 29, 2025 | Thunderstorms | 452 | 5% | 8.8 h | 5.5 h | 2.6k |
| Apr 3, 2019 | No storm report | 486 | 6% | 5.2 h | 5.0 h | 2.6k |
| Jun 20, 2023 | No storm report | 1,809 | 21% | 1.8 h | 8.5 h | 2.5k |
| Feb 23, 2023 | Ice storm | 460 | 5% | 9.5 h | 9.5 h | 2.5k |
| Apr 15, 2021 | No storm report | 856 | 10% | 2.8 h | 2.8 h | 2.4k |
| Jul 5, 2017 | Thunderstorms | 1,745 | 21% | 2.8 h | 1.2 h | 2.1k |
| Mar 28, 2016 | No storm report | 223 | 3% | 11 h | – | 2.0k |
| Jun 30, 2019 | Thunderstorms | 531 | 6% | 5.5 h | 5.5 h | 2.0k |
| Jun 28, 2017 | Tornadoes | 401 | 5% | 8.0 h | – | 1.9k |
| Jul 10, 2017 | Thunderstorms | 422 | 5% | 8.2 h | – | 1.8k |
| Sep 2, 2017 | No storm report | 510 | 6% | 3.2 h | 3.2 h | 1.7k |
| Apr 15, 2017 | Tornadoes | 1,681 | 20% | 1.0 h | 48 min | 1.5k |
| Jan 21, 2019 | No storm report | 349 | 4% | 3.8 h | – | 1.3k |
| Mar 5, 2025 | No storm report | 530 | 6% | 6.0 h | 6.2 h | 1.3k |
| Dec 14, 2015 | No storm report | 462 | 5% | 2.8 h | 2.8 h | 1.3k |
| Apr 26, 2017 | No storm report | 1,648 | 19% | 1.0 h | 6.5 h | 1.2k |
| Mar 5, 2018 | No storm report | 309 | 4% | 7.0 h | – | 1.1k |
| May 23, 2020 | Tornadoes | 373 | 4% | 3.0 h | – | 1.1k |
| Apr 2, 2016 | No storm report | 539 | 6% | 3.2 h | 2.8 h | 1.1k |
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 Jones from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 81%
- No storm on record 9.9%
- Tornadoes 6.3%
- Winter storm 1.4%
- Windstorm 1.1%
- Ice storm 0.6%
Who keeps the lights on
Utilities serving Jones
As each utility reports to the Energy Information Administration for its whole Iowa territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Interstate Power and Light Co | Investor Owned | 89 | 74 | 0.82 | 17.8 | 419k |
| Corridor Energy Cooperative | Cooperative | 135 | 135 | 1.77 | 14.2 | 31k |
| Eastern Iowa Light & Power Coop | Cooperative | 92 | 79 | 0.93 | 14.8 | 20k |
| Maquoketa Valley Rrl Elec Coop | Cooperative | 138 | 63 | 1.03 | 13.8 | 11k |
| Cascade Municipal Utilities | IA | – | – | – | – | 7.7k |
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 8,507 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 →