massoutage

2020 Arizona Power Outage Report

In 2020, the average Arizona customer went without power for about 1.3 hours — the 49th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
1.3
Peak customers out
71,189
Rank (worst state)
49th
Counties affected
14

Arizona outages over the decade

Average hours without power per customer, 2020 highlighted.

0.4h20150.7h20161.1h20171.9h20181.3h20191.3h20201.9h20212.0h20222.1h20231.7h20241.6h2025

Hardest-hit Arizona counties in 2020

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

1Coconino County71,1892Maricopa County49,5713Pima County21,9504Navajo County13,1265Yavapai County10,2606Santa Cruz County10,1527Mohave County5,3068Pinal County4,6939Yuma County4,06710Gila County3,98511Cochise County2,55212La Paz County1,22313Apache County1,17714Graham County70

Biggest Arizona outages of 2020

CountyBeganPeak customers out
Coconino CountyNovember 8, 202071,189
Maricopa CountyAugust 20, 202049,571
Pima CountyJune 18, 202021,950
Pima CountyAugust 21, 202018,677
Maricopa CountyDecember 10, 202015,125
Maricopa CountyAugust 11, 202013,411
Navajo CountySeptember 29, 202013,126
Maricopa CountyJune 20, 202011,219
Pima CountyAugust 18, 202010,527
Yavapai CountyMarch 19, 202010,260
Arizona by year:20252024202320222021201920182017
Other states in 2020:LAMEOKIAALNC

Part of the 2020 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.