massoutage

2025 Colorado Power Outage Report

In 2025, the average Colorado customer went without power for about 4.6 hours — the 26th worst of any US state that year, 1.8× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
4.6
Peak customers out
60,021
Rank (worst state)
26th
Counties affected
20

Colorado outages over the decade

Average hours without power per customer, 2025 highlighted.

1.2h20151.7h20161.5h20171.6h20183.3h20192.2h20202.8h20212.6h20222.1h20234.7h20244.6h2025

Hardest-hit Colorado counties in 2025

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

1Boulder County60,0212Jefferson County51,3193Adams County49,9424Arapahoe County22,4895Denver County20,4616Broomfield County19,3787Park County12,5348Archuleta County11,7729Weld County11,45710Pueblo County11,00611El Paso County8,82312Larimer County8,62413Moffat County7,07914Alamosa County7,02215Eagle County6,84016Summit County6,65417Clear Creek County6,42218Pitkin County6,18419La Plata County5,87720Mesa County5,872

Biggest Colorado outages of 2025

CountyBeganPeak customers out
Boulder CountyDecember 17, 202560,021
Jefferson CountyDecember 17, 202551,319
Adams CountyApril 18, 202549,942
Arapahoe CountyMay 26, 202522,489
Denver CountyJanuary 8, 202520,461
Broomfield CountyJanuary 8, 202519,378
Denver CountyDecember 17, 202516,168
Denver CountyApril 14, 202515,184
Adams CountyMay 26, 202514,662
Jefferson CountyMarch 24, 202513,708
Colorado 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.