massoutage

2023 Arizona Power Outage Report

In 2023, the average Arizona customer went without power for about 2.1 hours — the 45th worst of any US state that year, 1.4× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
2.1
Peak customers out
83,324
Rank (worst state)
45th
Counties affected
14

Arizona outages over the decade

Average hours without power per customer, 2023 highlighted.

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

Hardest-hit Arizona counties in 2023

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

1Maricopa County83,3242Pima County54,0763Santa Cruz County19,3534Coconino County10,6045Navajo County10,0856Yuma County9,7947Yavapai County7,8828Gila County7,8369Pinal County7,55210Mohave County5,51311Cochise County4,77112Apache County4,28413La Paz County1,70514Greenlee County620

Biggest Arizona outages of 2023

CountyBeganPeak customers out
Maricopa CountySeptember 1, 202383,324
Pima CountyJuly 24, 202354,076
Maricopa CountyJuly 27, 202346,077
Maricopa CountySeptember 12, 202343,095
Pima CountyJanuary 6, 202320,927
Pima CountyJuly 17, 202320,224
Santa Cruz CountyFebruary 1, 202319,353
Pima CountyAugust 21, 202318,896
Maricopa CountyFebruary 21, 202313,195
Coconino CountyFebruary 22, 202310,604
Arizona by year:20252024202220212020201920182017
Other states in 2023:MEMIKYOKARWV

Part of the 2023 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.