Apache County Power Outage History
2015–2025 · 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 1, 2025 | 2 hrs | 5,562 (18%) | High Wind |
| Mar 25, 2025 | 2 hrs | 5,228 (17%) | High Wind |
| Dec 23, 2023 | 29 hrs | 4,284 (14%) | Winter Weather |
| May 7, 2019 | 1 hrs | 3,958 (13%) | Unnamed event |
| Jun 2, 2025 | 2 hrs | 3,258 (10%) | Unnamed event |
Over the 11 years from 2015 to 2025, Apache County recorded 111 distinct power outage events, averaging 3.6 hours per event.
The single worst outage on record in Apache County started April 1, 2025 (High Wind), lasting 2 hours and leaving up to 5,562 customers without power (18% of the county) at its peak.
March has historically been the worst month for outages in Apache County, with 17 events recorded during that month across the dataset.
Based on this history, Apache County earns a Reliability Grade of A, placing it in the 87th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Apache County's outage profile
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Outage-prep kit
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Similar counties in Arizona
Counties with the closest reliability grade and national percentile to Apache County.
| County | Grade | National percentile |
|---|---|---|
| Maricopa County | A | 86th |
| Pima County | A | 86th |
| Yavapai County | A | 88th |
| Coconino County | A | 86th |
| Greenlee County | A | 89th |
FAQ
How often does power go out in Apache County?
Between 2015 and 2025, Apache County recorded 111 outage events, averaging 3.6 hours each.
What is Apache County's reliability grade?
Apache County has a Reliability Grade of A, in the 87th national percentile.
What was the worst power outage in Apache County?
The worst outage on record started April 1, 2025 (High Wind), lasting 2 hours and affecting up to 5,562 customers.