Mohave County Power Outage History
2016–2025 · Arizona
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 16, 2021 | 1 hrs | 41,824 (27%) | Unnamed event |
| Sep 6, 2017 | 5 hrs | 12,660 (8%) | Unnamed event |
| Jan 6, 2024 | 3 hrs | 10,282 (7%) | Winter Weather |
| Jul 26, 2021 | 3 hrs | 10,192 (7%) | Dust Storm |
| Apr 24, 2019 | 1 hrs | 10,089 (7%) | Unnamed event |
Over the 10 years from 2016 to 2025, Mohave County recorded 351 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Mohave County started April 16, 2021, lasting 1 hours and leaving up to 41,824 customers without power (27% of the county) at its peak.
July has historically been the worst month for outages in Mohave County, with 64 events recorded during that month across the dataset.
Based on this history, Mohave County earns a Reliability Grade of A, placing it in the 93rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Mohave County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
Similar counties in Arizona
Counties with the closest reliability grade and national percentile to Mohave County.
| County | Grade | National percentile |
|---|---|---|
| Cochise County | A | 96th |
| Yuma County | A | 89th |
| Greenlee County | A | 89th |
| Yavapai County | A | 88th |
| Apache County | A | 87th |
FAQ
How often does power go out in Mohave County?
Between 2016 and 2025, Mohave County recorded 351 outage events, averaging 2.2 hours each.
What is Mohave County's reliability grade?
Mohave County has a Reliability Grade of A, in the 93rd national percentile.
What was the worst power outage in Mohave County?
The worst outage on record started April 16, 2021, lasting 1 hours and affecting up to 41,824 customers.