massoutage

2025 Arizona Power Outage Report

In 2025, the average Arizona customer went without power for about 1.6 hours, the 50th worst of 51 states (US average 5.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
1.6
vs prior year
▼ 3%
vs 2024
Customer-hours out
5.1M
Peak customers out
70,818
across the state at once
EAGLE-I coverage
n/a
of AZ customers
Counties reporting
15

Arizona year over year

Arizona: average hours without power per customer by year2015: 0.4h; 2016: 0.7h; 2017: 1.1h; 2018: 1.9h, coverage 87%; 2019: 1.3h, coverage 86%; 2020: 1.3h, coverage 90%; 2021: 1.9h, coverage 91%; 2022: 2.0h, coverage 91%; 2023: 2.0h; 2024: 1.6h; 2025: 1.6h01230%50%100%0.4h20150.7h20161.1h20171.9h20181.3h20191.3h20201.9h20212.0h20222.0h20231.6h20241.6h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2025

Customer-hours without power across Arizona; August was the worst.

CSVJSON
Arizona customer-hours without power by month, 2025Jan 241K, Feb 273K, Mar 360K, Apr 334K, May 590K, Jun 392K, Jul 503K, Aug 834K, Sep 590K, Oct 467K, Nov 365K, Dec 174K0250k500k750k1M241KJan273KFeb360KMar334KApr590KMay392KJun503KJul834KAug590KSep467KOct365KNov174KDec
Use the arrow keys to read values.

All 15 Arizona counties, 2025

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Santa Cruz County22.330K1,3401,34061
2Greenlee County10.830K2,73580286
3Apache County8.6253K29,5495,562432
4La Paz County5.143K8,4031,62663
5Gila County3.4102K29,4895,849304
6Pinal County3.4316K92,0988,576561
7Navajo County2.3195K84,38813,067476
8Maricopa County1.62.9M1,742,49362,447458
9Yuma County1.6170K109,10019,028292
10Coconino County1.5209K138,0904,904290
11Yavapai County1.2291K246,4085,427432
12Pima County1.0469K492,74418,508287
13Mohave County0.7111K149,9289,999108
14Cochise County0.648K80,2278,138121
15Graham County0.087,82861

Biggest Arizona outages of 2025

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Maricopa County, AZAugust 24, 2025 06:30August 27, 2025 21:003d 14h62,447233K
2Maricopa County, AZOctober 12, 2025 09:30October 18, 2025 04:455d 19h35,925241K
3Maricopa County, AZAugust 19, 2025 13:15August 24, 2025 04:154d 15h21,51996K
4Maricopa County, AZMay 6, 2025 10:30May 8, 2025 00:151d 13h19,36521K
5Yuma County, AZSeptember 5, 2025 03:00September 6, 2025 19:151d 16h19,02874K
6Maricopa County, AZAugust 10, 2025 23:45August 11, 2025 10:3010h 45m18,92715K
7Pima County, AZAugust 27, 2025 04:00January 1, 2026 00:00126d 20h18,508195K
8Maricopa County, AZMarch 7, 2025 02:30March 9, 2025 00:451d 22h17,03660K
9Maricopa County, AZJuly 2, 2025 11:45July 12, 2025 09:009d 21h14,184134K
10Navajo County, AZApril 19, 2025 03:00April 20, 2025 10:001d 7h13,06759K
11Maricopa County, AZSeptember 26, 2025 14:45September 29, 2025 07:152d 16h12,192119K
12Pima County, AZJanuary 23, 2025 14:00January 23, 2025 23:309h 30m11,6845,954
13Navajo County, AZMay 3, 2025 21:15May 6, 2025 18:452d 21h11,63023K
14Pima County, AZFebruary 7, 2025 15:00February 13, 2025 07:005d 16h10,15735K
15Mohave County, AZMarch 14, 2025 02:30March 14, 2025 05:002h 30m9,99922K
16Maricopa County, AZAugust 8, 2025 20:45August 10, 2025 11:451d 15h9,94714K
17Navajo County, AZJuly 5, 2025 23:00July 6, 2025 01:302h 30m9,23220K
18Navajo County, AZJuly 7, 2025 19:30July 7, 2025 20:0030m9,2304,615
19Maricopa County, AZMarch 13, 2025 13:00March 15, 2025 01:001d 12h9,12222K
20Pima County, AZJanuary 24, 2025 19:30January 30, 2025 22:306d 3h9,0548,251
21Maricopa County, AZApril 19, 2025 22:15April 24, 2025 10:304d 12h8,82815K
22Pima County, AZJune 17, 2025 15:30June 17, 2025 17:001h 30m8,7122,183
23Pinal County, AZAugust 25, 2025 15:00August 27, 2025 18:302d 3h8,57627K
24Maricopa County, AZAugust 31, 2025 06:00September 3, 2025 06:003d8,31338K
25Maricopa County, AZNovember 24, 2025 14:30November 25, 2025 23:151d 8h8,22131K
EAGLE-I tracked about n/a of Arizona's electricity customers in 2025; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Arizona by year:2024202320222021202020192018201720162015
Other states in 2025:WVMIAKPAMOVANCAR

Part of the 2025 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.