Wibaux County Montana

The outage record here is too thin for a reliable yearly average. Raw events are listed below.

Worst outage on record Apr 23, 2022 53% of customers out · 90% back in 21 hours

Hours without power, average customer per year –h / yr State average 4.9 h · national median 6.6 h

Major outages a year – 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 25hours Apr 23, 2022, over 1% of customers out

Outage hours on storm days 66% Share falling on days with a NOAA storm report here

Worst year –

Electricity customers 675 ORNL customer model · 0 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 Wibaux'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

Wibaux, hours without power per customer

WibauxUS median countyMontana 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 23, 2022	Winter storm	355	53%	25 h	21 h	8.6k
Apr 29, 2018	No storm report	366	54%	3.0 h	5.2 h	1.1k
Jul 20, 2021	Thunderstorms	354	52%	3.0 h	2.0 h	1.1k
Apr 23, 2018	No storm report	359	53%	2.8 h	2.2 h	986
Jul 10, 2020	No storm report	170	25%	5.2 h	2.8 h	849
Apr 19, 2023	No storm report	358	53%	2.8 h	1.8 h	768
Mar 3, 2024	No storm report	348	52%	1.8 h	1.8 h	607
Jul 20, 2021	Thunderstorms	361	53%	1.5 h	–	529
Aug 16, 2021	No storm report	70	10%	3.2 h	3.2 h	228
Jun 23, 2022	No storm report	100	15%	1.5 h	1.5 h	149
Jul 27, 2024	No storm report	63	9%	2.0 h	2.0 h	126
Aug 20, 2020	No storm report	120	18%	1.0 h	48 min	118
Jul 13, 2022	No storm report	31	5%	3.8 h	–	116
Aug 13, 2020	No storm report	45	7%	2.5 h	1.8 h	106
Aug 5, 2022	No storm report	76	11%	1.2 h	48 min	94
May 15, 2017	No storm report	377	56%	12 min	–	94
Jul 8, 2021	No storm report	317	47%	12 min	–	79
May 13, 2023	No storm report	91	13%	1.2 h	4.0 h	53
Jun 7, 2018	No storm report	71	11%	12 min	–	18

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

Winter storm 55%
No storm on record 35%
Thunderstorms 10%

Who keeps the lights on

Utilities serving Wibaux

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

Utility	Type	Outage min / yr	Excl. major storms	Outages / yr	Residential ¢/kWh	Customers
Montana-Dakota Utilities Co	Investor Owned	146	146	1.23	12.3	20k
Goldenwest Electric Coop, Inc	MT	–	–	–	–	7.0k
McKenzie Electric Coop Inc	Cooperative	–	–	–	8.9	25
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

Richland 7.8 h
McKenzie, ND 1.8 h
Wibaux (this county) – h

Across Montana

Where it is darkest

Hours / yr64+

All Montana 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 675 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 →