Whiteside County Power Outage History
2014–2025 · Illinois
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 10, 2020 | 124 hrs | 17,218 (39%) | Thunderstorm Wind |
| Jun 23, 2015 | 6 hrs | 6,624 (15%) | Thunderstorm Wind |
| Jun 23, 2015 | 1 hrs | 3,668 (8%) | Thunderstorm Wind |
| Apr 29, 2025 | 1 hrs | 3,483 (8%) | Unnamed event |
| Nov 10, 2020 | 28 hrs | 3,375 (8%) | Tornado |
Over the 12 years from 2014 to 2025, Whiteside County recorded 306 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Whiteside County started August 10, 2020 (Thunderstorm Wind), lasting 124 hours and leaving up to 17,218 customers without power (39% of the county) at its peak.
June has historically been the worst month for outages in Whiteside County, with 54 events recorded during that month across the dataset.
Based on this history, Whiteside County earns a Reliability Grade of B, placing it in the 60th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Whiteside County's outage profile
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Similar counties in Illinois
Counties with the closest reliability grade and national percentile to Whiteside County.
| County | Grade | National percentile |
|---|---|---|
| Crawford County | B | 60th |
| Alexander County | B | 60th |
| Randolph County | B | 61st |
| Woodford County | C | 60th |
| Winnebago County | B | 61st |
FAQ
How often does power go out in Whiteside County?
Between 2014 and 2025, Whiteside County recorded 306 outage events, averaging 2.9 hours each.
What is Whiteside County's reliability grade?
Whiteside County has a Reliability Grade of B, in the 60th national percentile.
What was the worst power outage in Whiteside County?
The worst outage on record started August 10, 2020 (Thunderstorm Wind), lasting 124 hours and affecting up to 17,218 customers.