Power Out Map
– 0% of Montgomery out 0 customers out in Missouri

Power outage history

Montgomery County Missouri

4.4hours

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

67th most of 110 in Missouri 34% below the national median

Worst outage on record Jun 25, 2024 33% of customers out · 90% back in 8.8 hours
Hours without power, average customer per year 4.4h / yr State average 5.2 h · national median 6.6 h
Major outages a year 3.1 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 2hours Median across major outages, from the peak
Longest single outage 22hours Mar 14, 2025, over 1% of customers out
Outage hours on storm days 25% Share falling on days with a NOAA storm report here
Worst year 2024 6.1 hours without power, average customer
Electricity customers 5,285 ORNL customer model · 7 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 Montgomery'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

2024 was the worst well-recorded year, at 6.1 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Montgomery, hours without power per customer

MontgomeryUS median countyMissouri average
0 2 4 6 8 2.1 ’15 1.9 ’16 0.5 ’17 ’18 0.6 ’19 4.5 ’20 5.1 ’21 5.6 ’22 5.4 ’23 6.1 ’24 3.2 ’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
Jun 25, 2024 Thunderstorms 1,756 33% 14 h 8.8 h 11k
Nov 13, 2020 No storm report 3,497 66% 2.5 h 2.2 h 5.5k
May 14, 2023 Thunderstorms 649 12% 8.2 h 8.0 h 4.8k
May 21, 2024 No storm report 1,139 22% 6.2 h 3.8 h 4.7k
Jun 25, 2015 Thunderstorms 1,704 32% 4.8 h 1.2 h 4.6k
Aug 16, 2022 No storm report 1,571 30% 2.5 h 3.8 h 3.4k
Jul 10, 2021 No storm report 315 6% 15 h 11 h 3.2k
Oct 25, 2022 No storm report 1,875 35% 4.8 h 3.2 h 3.2k
Oct 12, 2022 No storm report 1,566 30% 2.2 h 3.5 h 3.2k
Mar 14, 2025 No storm report 180 3% 22 h – 3.0k
May 9, 2021 No storm report 184 3% 18 h – 2.9k
Nov 24, 2020 No storm report 1,642 31% 1.8 h 2.0 h 2.9k

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 +4h

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

  • No storm on record 75%
  • Thunderstorms 21%
  • Tornadoes 1.8%
  • Flooding 0.7%
  • Winter storm 0.6%

Who keeps the lights on

Utilities serving Montgomery

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
Union Electric Co Investor Owned 594 119 1.18 13.3 1.1M
Cuivre River Electric Coop Inc Cooperative 136 136 1.21 11.4 74k
Callaway Electric Cooperative Cooperative – – – 16.8 13k
Consolidated Electric Coop Cooperative 233 120 1.18 13.5 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.

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 5,285 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 →