massoutage

2025 Wyoming Power Outage Report

In 2025, the average Wyoming customer went without power for about 3.8 hours — the 33rd worst of any US state that year, 2.0× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
3.8
Peak customers out
43,178
Rank (worst state)
33rd
Counties affected
20

Wyoming outages over the decade

Average hours without power per customer, 2025 highlighted.

0.4h20150.6h20160.9h20171.2h20181.3h20193.4h20202.2h20212.4h20222.0h20232.4h20243.8h2025

Hardest-hit Wyoming counties in 2025

By peak customers out during the year's worst event.

1Natrona County43,1782Campbell County12,3193Sheridan County12,0174Converse County8,7415Johnson County7,0846Crook County6,5847Sweetwater County6,0418Carbon County5,5519Fremont County5,38310Laramie County4,87911Weston County4,78212Lincoln County3,37313Albany County2,73414Washakie County2,60715Park County2,20616Big Horn County1,67517Teton County1,53418Hot Springs County1,00119Sublette County57220Platte County459

Biggest Wyoming outages of 2025

CountyBeganPeak customers out
Natrona CountyNovember 13, 202543,178
Campbell CountyNovember 13, 202512,319
Sheridan CountyNovember 13, 202512,017
Converse CountyNovember 13, 20258,741
Natrona CountyJuly 28, 20257,603
Johnson CountyNovember 13, 20257,084
Crook CountyNovember 13, 20256,584
Sweetwater CountyNovember 10, 20256,041
Sweetwater CountyNovember 11, 20255,737
Carbon CountyAugust 25, 20255,551
Wyoming by year:20242023202220212020201920182017
Other states in 2025:WVMIAKPANCMO

Part of the 2025 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.