Kane 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 11, 2021 | 33 hrs | 23,054 (12%) | Thunderstorm Wind |
| Feb 22, 2023 | 71 hrs | 19,833 (10%) | Winter Weather |
| Aug 16, 2025 | 54 hrs | 18,870 (9%) | Thunderstorm Wind |
| Aug 29, 2018 | 24 hrs | 15,488 (8%) | Hail |
| Jul 10, 2020 | 27 hrs | 15,376 (8%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Kane County recorded 1,223 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Kane County started August 11, 2021 (Thunderstorm Wind), lasting 33 hours and leaving up to 23,054 customers without power (12% of the county) at its peak.
July has historically been the worst month for outages in Kane County, with 161 events recorded during that month across the dataset.
Based on this history, Kane County earns a Reliability Grade of B, placing it in the 79th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Kane County's outage profile
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Outage-prep kit
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Similar counties in Illinois
Counties with the closest reliability grade and national percentile to Kane County.
| County | Grade | National percentile |
|---|---|---|
| Cook County | B | 79th |
| Champaign County | B | 79th |
| Henry County | B | 78th |
| Montgomery County | A | 80th |
| DuPage County | A | 80th |
FAQ
How often does power go out in Kane County?
Between 2014 and 2025, Kane County recorded 1,223 outage events, averaging 2.0 hours each.
What is Kane County's reliability grade?
Kane County has a Reliability Grade of B, in the 79th national percentile.
What was the worst power outage in Kane County?
The worst outage on record started August 11, 2021 (Thunderstorm Wind), lasting 33 hours and affecting up to 23,054 customers.