– 0% of Cherokee out 0 customers out in Kansas

Power outage history

Cherokee County Kansas

2.8hours

without power for the average customer in a typical year, 2018–2025

51st most of 81 in Kansas 58% below the national median

Worst outage on record Dec 17, 2021 6% of customers out · 90% back in 28 hours
Hours without power, average customer per year 2.8h / yr State average 3.0 h · national median 6.6 h
Major outages a year 2.3 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 1hours Median across major outages, from the peak
Longest single outage 39hours Aug 16, 2024, over 1% of customers out
Outage hours on storm days 23% Share falling on days with a NOAA storm report here
Worst year 2025 3.8 hours without power, average customer
Electricity customers 9,878 Estimated from population · 8 well-covered years

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 Cherokee's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2025 was the worst well-recorded year, at 3.8 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Cherokee, hours without power per customer

CherokeeUS median countyKansas average
0 2 4 6 8 ’15 ’16 1.9 ’17 1.4 ’18 2.8 ’19 2.1 ’20 3.6 ’21 2.6 ’22 2.4 ’23 3.4 ’24 3.8 ’25 US 6.6 KS 3.0

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
Dec 17, 2021 No storm report 552 6% 28 h 28 h 16k
Jun 9, 2024 No storm report 1,642 17% 10 h 5.2 h 15k
Apr 30, 2025 No storm report 673 7% 23 h 22 h 11k
Oct 14, 2020 No storm report 4,837 49% 2.2 h 2.0 h 11k
Oct 2, 2022 No storm report 3,221 33% 3.0 h 2.5 h 8.9k
Aug 16, 2024 Thunderstorms 320 3% 39 h – 8.6k
Mar 30, 2025 Thunderstorms 614 6% 15 h 4.0 h 8.4k
May 20, 2019 Tornadoes 1,373 14% 23 h 14 h 8.3k
Jun 22, 2018 No storm report 1,540 16% 4.8 h 4.5 h 7.1k
Aug 5, 2023 No storm report 922 9% 12 h 2.5 h 5.0k
May 22, 2017 No storm report 1,540 16% 3.2 h 2.2 h 4.4k
Mar 14, 2025 No storm report 767 8% 7.0 h 5.5 h 4.3k

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.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +4h 90% by +6h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for Cherokee from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 78%
  • Thunderstorms 15%
  • Tornadoes 4.6%
  • Winter storm 1.7%
  • Flooding 1.6%

Who keeps the lights on

Utilities serving Cherokee

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
Heartland Rural Elec Coop, Inc KS 417 168 2.54 14.4 113k
Twin Valley Electric Coop Inc KS 384 93 1.59 17.0 25k
Empire District Electric Co Investor Owned 146 91 1.44 13.3 8.5k

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

Across Kansas

Where it is darkest

Hours / yr64+

All Kansas 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 9,878 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 →