Power outage history
Montgomery County Kansas
0.9hours
without power for the average customer in a typical year, 2018–2025
75th most of 81 in Kansas 86% 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 Montgomery's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2023 was the worst well-recorded year, at 1.5 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Montgomery, 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 5, 2023 | Thunderstorms | 4,731 | 20% | 4.5 h | 2.8 h | 14k |
| Nov 30, 2018 | No storm report | 3,387 | 14% | 4.2 h | 4.2 h | 7.0k |
| Dec 27, 2015 | No storm report | 1,858 | 8% | 3.8 h | 3.0 h | 6.4k |
| Sep 6, 2016 | No storm report | 2,361 | 10% | 3.2 h | 3.2 h | 5.5k |
| May 19, 2025 | Thunderstorms | 1,969 | 8% | 6.2 h | 5.8 h | 5.4k |
| Jun 26, 2018 | No storm report | 2,054 | 9% | 3.8 h | 2.8 h | 4.7k |
| Aug 8, 2019 | Flooding | 3,469 | 15% | 1.2 h | 1.0 h | 4.1k |
| Apr 22, 2021 | No storm report | 7,838 | 33% | 30 min | 30 min | 3.9k |
| Aug 3, 2018 | No storm report | 3,367 | 14% | 1.5 h | 1.0 h | 3.9k |
| Sep 14, 2023 | No storm report | 3,373 | 14% | 1.0 h | 3.8 h | 3.4k |
| Apr 11, 2016 | Thunderstorms | 1,197 | 5% | 4.2 h | 30 min | 3.3k |
| Apr 26, 2016 | Thunderstorms | 798 | 3% | 5.5 h | – | 3.0k |
| Oct 27, 2020 | Winter storm | 473 | 2% | 9.2 h | – | 3.0k |
| Jun 12, 2018 | Thunderstorms | 1,612 | 7% | 2.2 h | 48 min | 2.8k |
| Jan 7, 2023 | No storm report | 1,807 | 8% | 1.5 h | 1.5 h | 2.7k |
| Jul 31, 2017 | No storm report | 3,355 | 14% | 1.2 h | 1.0 h | 2.4k |
| Jul 12, 2016 | No storm report | 1,195 | 5% | 2.0 h | 1.5 h | 2.4k |
| Jun 26, 2025 | No storm report | 1,290 | 5% | 3.8 h | 3.8 h | 2.3k |
| Jun 15, 2024 | No storm report | 1,554 | 7% | 1.5 h | 1.5 h | 2.3k |
| Mar 31, 2023 | Windstorm | 998 | 4% | 4.0 h | – | 2.0k |
| Jul 27, 2017 | No storm report | 1,537 | 7% | 1.2 h | 1.2 h | 1.9k |
| Oct 16, 2024 | No storm report | 3,692 | 16% | 30 min | 12 min | 1.8k |
| Aug 29, 2018 | No storm report | 1,136 | 5% | 1.5 h | – | 1.7k |
| May 20, 2024 | No storm report | 1,128 | 5% | 1.5 h | – | 1.7k |
| May 20, 2019 | Flooding | 719 | 3% | 4.0 h | – | 1.5k |
| Nov 11, 2015 | No storm report | 803 | 3% | 2.0 h | – | 1.4k |
| Jan 20, 2025 | No storm report | 1,123 | 5% | 1.2 h | – | 1.4k |
| Oct 22, 2016 | No storm report | 1,631 | 7% | 1.0 h | 48 min | 1.4k |
| Jun 29, 2019 | No storm report | 690 | 3% | 2.0 h | – | 1.4k |
| Jul 8, 2022 | No storm report | 1,418 | 6% | 1.0 h | 48 min | 1.3k |
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 Montgomery from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 64%
- Thunderstorms 23%
- Flooding 5.7%
- Winter storm 4.3%
- Windstorm 2.7%
Who keeps the lights on
Utilities serving Montgomery
As each utility reports to the Energy Information Administration for its whole Kansas territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Evergy Kansas South, Inc | Investor Owned | 244 | 84 | 1.39 | 14.5 | 306k |
| Caney Valley El Coop Assn, Inc | KS | 352 | 352 | 3.37 | 16.1 | 32k |
| Twin Valley Electric Coop Inc | KS | 384 | 93 | 1.59 | 17.0 | 25k |
| City of Coffeyville | Municipal | 45 | 13 | 0.23 | 12.4 | 4.7k |
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.
Next door
Neighbouring counties
- Nowata, OK 8.7 h
- Washington, OK 6.6 h
- Elk 5.6 h
- Chautauqua 1.9 h
- Labette 1.7 h
- Montgomery (this county) 0.9 h
- Wilson 0.8 h
- Neosho 0.4 h
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 23,498 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 →