Power Out Map
– 0% of Weston out 0 customers out in Wyoming

Power outage history

Weston County Wyoming

6.8hours

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

3rd most of 20 in Wyoming close to the national median

Worst outage on record Nov 13, 2025 100% of customers out · 90% back in 4.5 hours
Hours without power, average customer per year 6.8h / yr State average 2.4 h · national median 6.6 h
Major outages a year 6.6 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 3.0days Aug 31, 2024, over 1% of customers out
Outage hours on storm days 21% Share falling on days with a NOAA storm report here
Worst year 2024 13 hours without power, average customer
Electricity customers 3,933 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 Weston'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 13 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Weston, hours without power per customer

WestonUS median countyWyoming average
0 5 10 15 ’16 ’17 ’18 1.9 ’19 4.9 ’20 6.3 ’21 7.5 ’22 3.3 ’23 13 ’24 11 ’25 US 6.6 WY 2.4

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
Nov 13, 2025 No storm report 3,933 100% 6.8 h 4.5 h 17k
Aug 31, 2024 No storm report 320 8% 3.0 d 3.0 d 8.8k
May 6, 2024 Winter storm 498 13% 40 h 7.2 h 7.9k
Oct 13, 2021 Winter storm 847 22% 12 h 13 h 5.2k
Apr 20, 2022 No storm report 763 19% 5.0 h 5.0 h 3.8k
Jul 30, 2020 No storm report 432 11% 15 h 12 h 3.7k
Aug 23, 2024 No storm report 783 20% 9.8 h 5.8 h 3.4k
May 14, 2024 No storm report 276 7% 22 h 48 min 3.3k
Jun 6, 2020 Thunderstorms 301 8% 18 h 12 min 3.2k
Apr 10, 2022 No storm report 763 19% 4.0 h 12 h 3.1k
Jun 30, 2024 Thunderstorms 312 8% 20 h 18 h 2.7k
Dec 18, 2025 Windstorm 1,179 30% 2.8 h 12 min 2.7k

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 +4h 90% by +6h

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

  • No storm on record 79%
  • Winter storm 11%
  • Thunderstorms 6.7%
  • Windstorm 3.1%

Who keeps the lights on

Utilities serving Weston

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Powder River Energy Corp Cooperative 571 271 3.50 12.2 16k
Niobrara Electric Assn, Inc WY 1,018 603 – – 10k
Black Hills Power, Inc. Investor Owned 68 13 1.25 13.8 2.2k

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 Wyoming

Where it is darkest

Hours / yr64+

All Wyoming 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 3,933 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 →