– 0% of Webster out 0 customers out in Missouri

Power outage history

Webster County Missouri

12hours

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

10th most of 110 in Missouri 1.8× the national median

Worst outage on record Jul 23, 2023 11% of customers out · 90% back in 18 hours
Hours without power, average customer per year 12h / yr State average 5.2 h · national median 6.6 h
Major outages a year 1.1 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 4hours Median across major outages, from the peak
Longest single outage 5.6days Jul 18, 2023, over 1% of customers out
Outage hours on storm days 15% Share falling on days with a NOAA storm report here
Worst year 2023 40 hours without power, average customer
Electricity customers 12,849 ORNL customer model · 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 Webster'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

2023 was the worst well-recorded year, at 40 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Webster, hours without power per customer

WebsterUS median countyMissouri average
0 10 20 30 40 50 ’15 ’16 ’17 0.4 ’18 0.4 ’19 0.6 ’20 0.6 ’21 10 ’22 40 ’23 16 ’24 25 ’25 US 6.6 MO 5.2

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
Jul 18, 2023 No storm report 1,370 11% 5.6 d 18 h 110k
Mar 31, 2023 No storm report 1,538 12% 2.6 d 2.1 d 89k
Jul 10, 2025 No storm report 501 4% 3.6 d – 43k
Sep 1, 2023 No storm report 474 4% 3.8 d – 42k
Feb 2, 2023 No storm report 571 4% 3.6 d – 42k
Sep 16, 2022 No storm report 567 4% 2.9 d – 39k
Apr 26, 2024 Flooding 620 5% 2.9 d – 39k
May 12, 2023 No storm report 566 4% 2.8 d – 38k
Jul 25, 2025 No storm report 522 4% 2.8 d – 35k
Jan 25, 2023 Winter storm 4,297 33% 21 h 12 h 33k
Oct 31, 2025 No storm report 355 3% 3.0 d – 25k
Oct 27, 2022 No storm report 211 2% 5.1 d – 22k

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 +6h 90% by +8h

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 Webster from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 85%
  • Flooding 4.4%
  • Thunderstorms 4.1%
  • Winter storm 4.0%
  • Tropical storm 1.4%
  • Windstorm 0.6%

Who keeps the lights on

Utilities serving Webster

As each utility reports to the Energy Information Administration for its whole Missouri territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
SE-MA-NO Electric Coop MO – – – 9.1 85k
Southwest Electric Coop, Inc Cooperative 356 214 1.00 12.3 42k
Laclede Electric Coop, Inc Cooperative 155 123 2.07 12.4 35k
Webster Electric Coop Cooperative 103 103 1.20 10.3 19k
City of Seymour MO – – – – 9.6k

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 Missouri

Where it is darkest

Hours / yr64+

All Missouri 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 12,849 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 →