Power outage history
Osceola County Iowa
6.3hours
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 Osceola's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2019 was the worst well-recorded year, at 6.3 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Osceola, 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 11, 2019 | Ice storm | 824 | 23% | 2.4 d | 47 h | 20k |
| Apr 14, 2018 | Winter storm | 258 | 7% | 21 h | 19 h | 5.2k |
| Jun 11, 2025 | Thunderstorms | 540 | 15% | 22 h | 16 h | 5.1k |
| Aug 11, 2020 | No storm report | 309 | 9% | 3.5 h | 3.5 h | 1.1k |
| May 15, 2015 | No storm report | 472 | 13% | 1.8 h | 1.5 h | 773 |
| Jun 13, 2025 | No storm report | 229 | 6% | 3.2 h | 3.2 h | 744 |
| Jun 16, 2025 | No storm report | 473 | 13% | 2.2 h | 2.2 h | 728 |
| Mar 13, 2019 | Flooding | 316 | 9% | 2.0 h | 48 min | 631 |
| Oct 3, 2023 | No storm report | 170 | 5% | 3.5 h | – | 595 |
| Dec 15, 2021 | Windstorm | 171 | 5% | 3.0 h | – | 513 |
| Jun 6, 2015 | No storm report | 473 | 13% | 1.0 h | 1.0 h | 473 |
| Jan 27, 2024 | No storm report | 207 | 6% | 2.2 h | 2.2 h | 466 |
| Jun 21, 2020 | Thunderstorms | 259 | 7% | 3.2 h | 3.2 h | 433 |
| Mar 5, 2022 | Winter storm | 156 | 4% | 2.8 h | – | 428 |
| Feb 7, 2019 | No storm report | 223 | 6% | 1.8 h | 1.8 h | 389 |
| Jul 31, 2024 | Heat | 308 | 9% | 1.2 h | 1.2 h | 385 |
| Jul 1, 2022 | No storm report | 235 | 7% | 1.5 h | 1.5 h | 352 |
| Mar 9, 2019 | Winter storm | 178 | 5% | 2.2 h | – | 347 |
| Dec 28, 2021 | No storm report | 171 | 5% | 2.0 h | – | 342 |
| Mar 30, 2016 | No storm report | 301 | 8% | 1.0 h | 1.0 h | 301 |
| Dec 11, 2022 | No storm report | 169 | 5% | 1.8 h | – | 296 |
| Apr 10, 2019 | Ice storm | 189 | 5% | 1.5 h | 30 min | 272 |
| Oct 26, 2017 | No storm report | 225 | 6% | 1.0 h | 2.2 h | 214 |
| May 16, 2018 | No storm report | 166 | 5% | 1.2 h | – | 208 |
| Sep 16, 2015 | No storm report | 187 | 5% | 1.8 h | 30 min | 203 |
| Jun 13, 2015 | No storm report | 187 | 5% | 1.0 h | 1.0 h | 187 |
| Apr 14, 2018 | Winter storm | 183 | 5% | 1.0 h | 1.0 h | 183 |
| Aug 27, 2022 | No storm report | 40 | 1% | 4.5 h | – | 176 |
| Jul 29, 2025 | Thunderstorms | 227 | 6% | 48 min | 48 min | 170 |
| Aug 5, 2021 | No storm report | 152 | 4% | 2.0 h | – | 168 |
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 Osceola from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Ice storm 51%
- Winter storm 15%
- No storm on record 15%
- Thunderstorms 14%
- Flooding 1.7%
- Windstorm 1.3%
- Heat 1.0%
Who keeps the lights on
Utilities serving Osceola
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 |
| Lyon Rural Electric Coop | IA | 173 | 51 | 0.90 | 9.6 | 70k |
| Osceola Electric Coop, Inc | IA | 452 | 103 | 3.79 | 10.8 | 34k |
| City of Sibley | IA | – | – | – | 9.5 | 16k |
| Iowa Lakes Electric Coop | Cooperative | 55 | 54 | 0.44 | 13.8 | 9.8k |
| North West Rural Electric Coop | Cooperative | 188 | 115 | 1.11 | 9.4 | 9.5k |
| Nobles Cooperative Electric | MN | – | – | – | 11.6 | 135 |
| Federated Rural Electric Assn | Cooperative | – | – | – | 12.9 | 53 |
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 3,588 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 →