Jerome County Power Outage History
2015–2025 · Idaho
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Nov 7, 2022 | 0 hrs | 10,206 (85%) | Unnamed event |
| Jul 15, 2017 | 5 hrs | 8,971 (74%) | Thunderstorm Wind |
| Jan 8, 2017 | 11 hrs | 8,876 (74%) | Heavy Snow |
| Nov 18, 2024 | 5 hrs | 5,945 (49%) | Unnamed event |
| Nov 15, 2023 | 2 hrs | 5,582 (46%) | Unnamed event |
Over the 11 years from 2015 to 2025, Jerome County recorded 526 distinct power outage events, averaging 2.1 hours per event.
The single worst outage on record in Jerome County started November 7, 2022, lasting 0 hours and leaving up to 10,206 customers without power (85% of the county) at its peak.
August has historically been the worst month for outages in Jerome County, with 58 events recorded during that month across the dataset.
Based on this history, Jerome County earns a Reliability Grade of C, placing it in the 59th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Idaho
Counties with the closest reliability grade and national percentile to Jerome County.
| County | Grade | National percentile |
|---|---|---|
| Elmore County | C | 59th |
| Nez Perce County | C | 58th |
| Owyhee County | C | 57th |
| Fremont County | C | 57th |
| Bingham County | C | 56th |
FAQ
How often does power go out in Jerome County?
Between 2015 and 2025, Jerome County recorded 526 outage events, averaging 2.1 hours each.
What is Jerome County's reliability grade?
Jerome County has a Reliability Grade of C, in the 59th national percentile.
What was the worst power outage in Jerome County?
The worst outage on record started November 7, 2022, lasting 0 hours and affecting up to 10,206 customers.