– 0% of Moody out 0 customers out in South Dakota

Power outage history

Moody County South Dakota

7.2hours

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

10th most of 32 in South Dakota close to the national median

Worst outage on record Apr 12, 2019 26% of customers out · 90% back in 3.2 days

Hours without power, average customer per year 7.2h / yr State average 4.8 h · national median 6.6 h

Major outages a year 1.9 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 9.0days Jan 14, 2019, over 1% of customers out

Outage hours on storm days 68% Share falling on days with a NOAA storm report here

Worst year 2019 27 hours without power, average customer

Electricity customers 3,517 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 Moody'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

2019 was the worst well-recorded year, at 27 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Moody, hours without power per customer

MoodyUS median countySouth Dakota average

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
Apr 10, 2019	Flooding	921	26%	6.1 d	3.2 d	59k
May 12, 2022	Thunderstorms	1,528	43%	3.0 d	2.1 d	45k
Jan 14, 2019	No storm report	116	3%	9.0 d	–	24k
Jul 5, 2022	No storm report	410	12%	15 h	15 h	2.7k
Jul 21, 2021	No storm report	167	5%	16 h	–	2.7k
May 30, 2025	No storm report	37	1%	3.0 d	–	2.6k
Jan 7, 2021	No storm report	77	2%	27 h	–	1.9k
Dec 26, 2024	No storm report	153	4%	28 h	–	1.5k
Jun 25, 2022	No storm report	200	6%	6.0 h	1.8 h	1.2k
Jun 4, 2025	No storm report	55	2%	21 h	–	1.1k
May 9, 2019	Flooding	509	14%	2.0 h	1.8 h	1.0k
Dec 8, 2020	No storm report	476	14%	1.8 h	1.8 h	832
Apr 20, 2023	Flooding	479	14%	2.2 h	1.5 h	767
Jan 27, 2022	No storm report	87	2%	12 h	–	765
Jan 23, 2024	No storm report	167	5%	4.0 h	–	668
Oct 22, 2020	Winter storm	215	6%	3.5 h	2.5 h	642
May 26, 2020	No storm report	488	14%	1.2 h	5.8 h	610
Apr 28, 2025	No storm report	323	9%	3.5 h	3.2 h	597
Jul 20, 2019	Flooding	152	4%	6.2 h	–	542
Jun 2, 2018	No storm report	899	26%	1.0 h	1.0 h	538
Jul 1, 2021	No storm report	234	7%	2.5 h	4.5 h	526
Sep 14, 2020	No storm report	191	5%	3.0 h	2.2 h	518
Oct 22, 2025	No storm report	46	1%	11 h	–	509
Apr 30, 2023	Windstorm	169	5%	5.8 h	–	492
Mar 11, 2020	Flooding	440	13%	1.8 h	1.8 h	410
Aug 17, 2019	Thunderstorms	164	5%	3.8 h	–	405
Apr 14, 2022	Windstorm	68	2%	5.8 h	–	391
May 3, 2023	No storm report	169	5%	2.2 h	–	380
Jan 30, 2020	No storm report	463	13%	1.0 h	1.0 h	376
Mar 29, 2023	No storm report	424	12%	1.0 h	48 min	366

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

Flooding 38%
No storm on record 32%
Thunderstorms 28%
Winter storm 0.8%
Windstorm 0.5%

Who keeps the lights on

Utilities serving Moody

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

Utility	Type	Outage min / yr	Excl. major storms	Outages / yr	Residential ¢/kWh	Customers
Northern States Power Co - Minnesota	Investor Owned	160	58	0.88	13.1	94k
Sioux Valley SW Elec Coop	Cooperative	59	59	1.64	13.9	23k
City of Flandreau	SD	–	–	–	11.3	11k
Otter Tail Power Co	Investor Owned	191	189	1.73	11.4	9.1k
City of Colman	SD	–	–	–	–	5.1k
WAPA-- Western Area Power Administration	Federal	–	–	–	–	–

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

Pipestone, MN 10 h
Moody (this county) 7.2 h
Minnehaha 5.6 h
Lake 5.0 h
Rock, MN 3.1 h
Brookings 2.1 h

Across South Dakota

Where it is darkest

Hours / yr64+

All South Dakota 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 3,517 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 →