Benton County Power Outage History
2015–2025 · Missouri
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 |
|---|---|---|---|
| May 20, 2025 | 56 hrs | 5,540 (37%) | Tornado |
| Jun 24, 2021 | 4 hrs | 3,542 (24%) | Unnamed event |
| Jun 11, 2021 | 12 hrs | 2,815 (19%) | Thunderstorm Wind |
| Jul 31, 2023 | 10 hrs | 2,380 (16%) | Drought |
| May 7, 2024 | 14 hrs | 2,179 (15%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, Benton County recorded 974 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Benton County started May 20, 2025 (Tornado), lasting 56 hours and leaving up to 5,540 customers without power (37% of the county) at its peak.
July has historically been the worst month for outages in Benton County, with 116 events recorded during that month across the dataset.
Based on this history, Benton County earns a Reliability Grade of C, placing it in the 57th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Missouri
Counties with the closest reliability grade and national percentile to Benton County.
| County | Grade | National percentile |
|---|---|---|
| Lincoln County | C | 57th |
| Carter County | C | 57th |
| Hickory County | C | 58th |
| Barton County | C | 56th |
| DeKalb County | C | 56th |
FAQ
How often does power go out in Benton County?
Between 2015 and 2025, Benton County recorded 974 outage events, averaging 2.4 hours each.
What is Benton County's reliability grade?
Benton County has a Reliability Grade of C, in the 57th national percentile.
What was the worst power outage in Benton County?
The worst outage on record started May 20, 2025 (Tornado), lasting 56 hours and affecting up to 5,540 customers.