Cochise 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 |
|---|---|---|---|
| Jun 21, 2022 | 2 hrs | 13,325 (16%) | Drought |
| Mar 13, 2022 | <1 hr | 12,720 (16%) | Unnamed event |
| Jul 23, 2025 | 1 hrs | 8,138 (10%) | Drought |
| Jul 19, 2017 | 2 hrs | 8,138 (10%) | Wildfire |
| Aug 13, 2017 | 3 hrs | 8,041 (10%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Cochise County, Arizona that day.
Over the 9 years from 2017 to 2025, Cochise County recorded 183 distinct power outage events, averaging 1.8 hours per event.
The single worst outage on record in Cochise County started June 21, 2022 (Drought), lasting 2 hours and leaving up to 13,325 customers without power (16% of the county) at its peak.
July has historically been the worst month for outages in Cochise County, with 55 events recorded during that month across the dataset.
Based on this history, Cochise County earns a Reliability Grade of A, placing it in the 96th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Arizona
Counties with the closest reliability grade and national percentile to Cochise County.
| County | Grade | National percentile |
|---|---|---|
| Mohave County | A | 93rd |
| Graham County | Not ranked | — |
| Yuma County | A | 89th |
| Greenlee County | A | 89th |
| Yavapai County | A | 88th |
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 Cochise County?
Between 2017 and 2025, Cochise County recorded 183 outage events, averaging 1.8 hours each.
What is Cochise County's reliability grade?
Cochise County has a Reliability Grade of A, in the 96th national percentile.
What was the worst power outage in Cochise County?
The worst outage on record started June 21, 2022 (Drought), lasting 2 hours and affecting up to 13,325 customers.