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

Power outage history

Iron County Missouri

14hours

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

9th most of 110 in Missouri 2.1× the national median

Worst outage on record Jan 6, 2025 61% of customers out · 90% back in 2.4 days
Hours without power, average customer per year 14h / yr State average 5.2 h · national median 6.6 h
Major outages a year 4.1 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 6.0days Mar 14, 2025, over 1% of customers out
Outage hours on storm days 73% Share falling on days with a NOAA storm report here
Worst year 2025 47 hours without power, average customer
Electricity customers 5,709 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 Iron'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 47 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Iron, hours without power per customer

IronUS median countyMissouri average
0 20 40 60 2.3 ’15 3.5 ’16 1.6 ’17 1.6 ’18 5.5 ’19 4.3 ’20 5.9 ’21 5.5 ’22 19 ’23 22 ’24 47 ’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
Jan 5, 2025 Ice storm 3,458 61% 4.6 d 2.4 d 160k
May 8, 2024 Tornadoes 3,024 53% 3.0 d 2.4 d 81k
Jan 24, 2023 Winter storm 2,663 47% 2.9 d 2.4 d 72k
Mar 14, 2025 Tornadoes 1,665 29% 6.0 d 2.2 d 47k
Oct 24, 2021 Tornadoes 871 15% 45 h 8.8 h 12k
Mar 14, 2024 Thunderstorms 1,657 29% 11 h 7.8 h 12k
Jul 6, 2016 Thunderstorms 4,029 71% 14 h 4.2 h 10k
Apr 4, 2025 Flooding 887 16% 39 h 4.8 h 6.8k
May 19, 2022 No storm report 397 7% 2.1 d 22 h 5.9k
Aug 10, 2021 No storm report 1,012 18% 5.5 h 5.5 h 5.3k
Apr 1, 2020 No storm report 630 11% 11 h 7.5 h 5.1k
Nov 21, 2015 No storm report 1,280 22% 11 h 10 h 3.7k

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 +10h

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

  • Ice storm 28%
  • No storm on record 27%
  • Tornadoes 26%
  • Winter storm 13%
  • Thunderstorms 4.2%
  • Flooding 1.8%

Who keeps the lights on

Utilities serving Iron

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
Black River Electric Coop Cooperative 2,909 564 – 13.6 22k

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 5,709 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 →