White County Power Outage History
2015–2025 · Illinois
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 |
|---|---|---|---|
| May 20, 2022 | 8 hrs | 2,189 (21%) | Thunderstorm Wind |
| Aug 18, 2025 | 4 hrs | 2,181 (21%) | Unnamed event |
| Aug 5, 2021 | 1 hrs | 1,944 (18%) | Heat |
| Jan 5, 2025 | 45 hrs | 1,794 (17%) | Winter Storm |
| May 8, 2016 | 1 hrs | 1,639 (15%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, White County recorded 288 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in White County started May 20, 2022 (Thunderstorm Wind), lasting 8 hours and leaving up to 2,189 customers without power (21% of the county) at its peak.
July has historically been the worst month for outages in White County, with 37 events recorded during that month across the dataset.
Based on this history, White County earns a Reliability Grade of A, placing it in the 88th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for White County's outage profile
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Similar counties in Illinois
Counties with the closest reliability grade and national percentile to White County.
| County | Grade | National percentile |
|---|---|---|
| Wayne County | A | 88th |
| Richland County | A | 87th |
| DeKalb County | A | 89th |
| Effingham County | A | 89th |
| Schuyler County | A | 91st |
FAQ
How often does power go out in White County?
Between 2015 and 2025, White County recorded 288 outage events, averaging 2.3 hours each.
What is White County's reliability grade?
White County has a Reliability Grade of A, in the 88th national percentile.
What was the worst power outage in White County?
The worst outage on record started May 20, 2022 (Thunderstorm Wind), lasting 8 hours and affecting up to 2,189 customers.