Power outage history
Coconino County Arizona
1.8hours
without power for the average customer in a typical year, 2018–2025
6th most of 11 in Arizona 72% below the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Coconino's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2023 was the worst well-recorded year, at 3.0 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Coconino, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Feb 22, 2023 | Windstorm | 10,604 | 8% | 37 h | 31 h | 167k |
| Apr 29, 2018 | Wildfire | 2,115 | 2% | 3.1 d | – | 126k |
| Nov 29, 2019 | Winter storm | 11,440 | 8% | 21 h | 16 h | 123k |
| Jan 17, 2023 | Winter storm | 5,211 | 4% | 18 h | 19 h | 41k |
| Oct 7, 2018 | Flooding | 5,518 | 4% | 7.8 h | 3.5 h | 24k |
| Nov 30, 2019 | Winter storm | 2,545 | 2% | 11 h | – | 22k |
| Oct 18, 2024 | Windstorm | 6,316 | 5% | 3.5 h | 4.2 h | 21k |
| Jan 27, 2022 | Windstorm | 6,248 | 5% | 3.5 h | 3.2 h | 16k |
| Mar 31, 2024 | Winter storm | 3,465 | 3% | 6.2 h | – | 16k |
| Jul 23, 2023 | No storm report | 2,998 | 2% | 5.5 h | – | 15k |
| Jul 26, 2018 | No storm report | 3,383 | 2% | 4.2 h | – | 14k |
| Jul 12, 2024 | Thunderstorms | 3,119 | 2% | 4.5 h | – | 14k |
| Aug 4, 2024 | Flooding | 6,311 | 5% | 2.0 h | 2.0 h | 13k |
| Jun 3, 2021 | No storm report | 3,207 | 2% | 4.0 h | – | 13k |
| Nov 27, 2018 | No storm report | 1,768 | 1% | 7.0 h | – | 12k |
| Jun 21, 2024 | No storm report | 2,471 | 2% | 6.8 h | – | 12k |
| Dec 23, 2023 | No storm report | 3,050 | 2% | 4.0 h | – | 12k |
| Jun 9, 2025 | No storm report | 4,904 | 4% | 3.5 h | – | 12k |
| Jul 11, 2020 | No storm report | 5,062 | 4% | 3.2 h | 3.8 h | 12k |
| Feb 9, 2024 | No storm report | 2,486 | 2% | 5.8 h | – | 10k |
| Feb 7, 2024 | Winter storm | 2,202 | 2% | 7.5 h | – | 10k |
| Dec 28, 2022 | Winter storm | 4,832 | 4% | 2.2 h | – | 10k |
| Jun 9, 2020 | Wildfire | 3,623 | 3% | 3.0 h | – | 10.0k |
| Jul 10, 2020 | No storm report | 3,663 | 3% | 3.0 h | – | 10.0k |
| Jul 20, 2021 | Thunderstorms | 1,886 | 1% | 5.5 h | – | 9.3k |
| Oct 1, 2021 | No storm report | 3,213 | 2% | 2.8 h | – | 8.8k |
| Jan 2, 2023 | Winter storm | 1,897 | 1% | 4.8 h | – | 8.7k |
| May 21, 2021 | Windstorm | 3,300 | 2% | 4.8 h | – | 8.7k |
| Jun 26, 2022 | Wildfire | 7,454 | 5% | 1.5 h | 2.0 h | 8.1k |
| Jul 11, 2025 | No storm report | 3,257 | 2% | 3.0 h | – | 8.0k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Coconino from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 33%
- Winter storm 21%
- Windstorm 19%
- Wildfire 15%
- Flooding 8.1%
- Thunderstorms 3.1%
Who keeps the lights on
Utilities serving Coconino
As each utility reports to the Energy Information Administration for its whole Arizona territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Arizona Public Service Co | Investor Owned | 73 | 73 | 0.84 | 17.0 | 1.3M |
| Page Utility Enterprises | AZ | – | – | – | 7.4 | 42k |
| Mohave Electric Cooperative, Inc. | Cooperative | 197 | 152 | – | 11.3 | 42k |
| Navajo Tribal Utility Authority | State | 216 | 216 | 2.32 | 16.5 | 27k |
| City of Williams - AZ | AZ | – | – | – | – | 9.4k |
| City of Fredonia | AZ | – | – | – | – | 6.8k |
| Garkane Energy Coop, Inc | Cooperative | – | – | – | 12.1 | 1.5k |
| WAPA-- Western Area Power Administration | Federal | – | – | – | – | – |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 138,090 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →