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

Power outage history

Jackson County South Dakota

5.1hours

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

18th most of 32 in South Dakota 23% below the national median

Worst outage on record Jun 13, 2022 81% of customers out · 90% back in 2.2 days

Hours without power, average customer per year 5.1h / yr State average 4.8 h · national median 6.6 h

Major outages a year 2.6 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 3.8days Jun 12, 2022, over 1% of customers out

Outage hours on storm days 94% Share falling on days with a NOAA storm report here

Worst year 2021 10 hours without power, average customer

Electricity customers 915 ORNL customer model · 5 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 Jackson'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

2021 was the worst well-recorded year, at 10 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Jackson, hours without power per customer

JacksonUS 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
Jun 12, 2022	Thunderstorms	739	81%	3.8 d	2.2 d	36k
Mar 14, 2021	Winter storm	439	48%	2.0 d	46 h	7.3k
Dec 16, 2022	Winter storm	74	8%	47 h	47 h	2.4k
Jun 11, 2022	Thunderstorms	647	71%	2.8 h	3.0 h	1.8k
Mar 5, 2018	Winter storm	74	8%	11 h	11 h	777
Jun 6, 2020	Thunderstorms	132	14%	5.0 h	3.5 h	515
Mar 5, 2018	Winter storm	79	9%	6.0 h	16 h	462
Aug 3, 2020	No storm report	49	5%	7.8 h	7.8 h	380
Jul 16, 2021	Thunderstorms	83	9%	4.0 h	4.0 h	332
Jun 23, 2023	Thunderstorms	52	6%	7.2 h	5.8 h	330
Aug 6, 2020	No storm report	91	10%	3.2 h	3.2 h	296
Jun 26, 2020	No storm report	34	4%	6.8 h	–	230
Jan 17, 2020	Windstorm	70	8%	3.0 h	3.0 h	210
Nov 7, 2023	No storm report	115	13%	1.8 h	1.8 h	201
Dec 15, 2022	Winter storm	127	14%	3.0 h	2.0 h	197
Apr 15, 2024	Thunderstorms	78	9%	2.2 h	2.2 h	176
May 1, 2021	No storm report	54	6%	3.2 h	3.2 h	176
Aug 27, 2020	Thunderstorms	45	5%	6.0 h	–	167
Feb 7, 2021	No storm report	111	12%	1.8 h	30 min	162
Jul 5, 2021	No storm report	78	9%	2.0 h	14 h	156
Aug 31, 2022	No storm report	117	13%	2.5 h	2.5 h	152
Jan 5, 2022	No storm report	64	7%	2.2 h	2.2 h	144
Mar 29, 2022	Windstorm	139	15%	1.0 h	2.5 h	139
Jun 30, 2020	No storm report	34	4%	4.2 h	–	128
Aug 12, 2023	No storm report	61	7%	2.0 h	2.0 h	122
Jul 3, 2022	Thunderstorms	112	12%	1.2 h	1.2 h	120
Nov 2, 2023	No storm report	37	4%	3.0 h	–	111
Jan 13, 2024	Winter storm	61	7%	1.8 h	5.5 h	107
Apr 23, 2024	No storm report	26	3%	4.0 h	–	104
Jun 7, 2020	No storm report	27	3%	4.0 h	–	101

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

Thunderstorms 72%
Winter storm 21%
No storm on record 6.5%
Windstorm 0.7%

Who keeps the lights on

Utilities serving Jackson

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
LaCreek Electric Assn, Inc	SD	130	130	1.16	11.1	76k
West Central Electric Coop Inc	SD	100	100	0.96	13.6	73k
West River Electric Assn Inc	Cooperative	24	24	0.30	15.2	19k
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

Haakon 12 h
Todd 12 h
Mellette 9.6 h
Jackson (this county) 5.1 h
Pennington 3.4 h
Oglala Lakota 1.0 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 915 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 →