Mohave CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 16, 2021 | <1 hr | 41,824 (27%) | Unnamed event |
| Sep 6, 2017 | 5 hrs | 12,660 (8%) | Thunderstorm Wind |
| Jan 6, 2024 | 3 hrs | 10,282 (7%) | Winter Weather |
| Jul 26, 2021 | 3 hrs | 10,192 (7%) | Flash Flood |
| Apr 24, 2019 | 1 hrs | 10,089 (7%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Mohave County, Arizona that day.
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 less than 1 hour 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).
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 |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
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 less than 1 hour and affecting up to 41,824 customers.