Will CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 10, 2020 | 12 hrs | 98,024 (33%) | Tornado |
| Aug 11, 2020 | 11 hrs | 78,547 (26%) | Tornado |
| Aug 11, 2020 | 43 hrs | 68,678 (23%) | Tornado |
| Jul 16, 2024 | 94 hrs | 62,498 (21%) | Thunderstorm Wind |
| Mar 9, 2015 | 2 hrs | 22,598 (8%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Will County, Illinois that day.
Over the 12 years from 2014 to 2025, Will County recorded 1,855 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Will County started August 10, 2020 (Tornado), lasting 12 hours and leaving up to 98,024 customers without power (33% of the county) at its peak.
June has historically been the worst month for outages in Will County, with 261 events recorded during that month across the dataset.
Based on this history, Will County earns a Reliability Grade of B, placing it in the 63rd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Illinois
Counties with the closest reliability grade and national percentile to Will County.
| County | Grade | National percentile |
|---|---|---|
| Scott County | B | 63rd |
| Brown County | B | 63rd |
| Morgan County | B | 64th |
| Macon County | B | 64th |
| Adams County | B | 62nd |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Will County?
Between 2014 and 2025, Will County recorded 1,855 outage events, averaging 2.0 hours each.
What is Will County's reliability grade?
Will County has a Reliability Grade of B, in the 63rd national percentile.
What was the worst power outage in Will County?
The worst outage on record started August 10, 2020 (Tornado), lasting 12 hours and affecting up to 98,024 customers.