Monroe County Power Outage History
2014–2025 · Illinois
Worse than average — more frequent or longer 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 |
|---|---|---|---|
| Mar 14, 2025 | 56 hrs | 9,159 (52%) | Thunderstorm Wind |
| Jul 1, 2023 | 98 hrs | 7,417 (42%) | Thunderstorm Wind |
| Jul 13, 2016 | 54 hrs | 6,847 (39%) | Thunderstorm Wind |
| Dec 25, 2023 | 2 hrs | 5,948 (34%) | Unnamed event |
| Aug 10, 2020 | 49 hrs | 3,730 (21%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Monroe County recorded 309 distinct power outage events, averaging 3.6 hours per event.
The single worst outage on record in Monroe County started March 14, 2025 (Thunderstorm Wind), lasting 56 hours and leaving up to 9,159 customers without power (52% of the county) at its peak.
July has historically been the worst month for outages in Monroe County, with 38 events recorded during that month across the dataset.
Based on this history, Monroe County earns a Reliability Grade of D, placing it in the 38th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Illinois
Counties with the closest reliability grade and national percentile to Monroe County.
| County | Grade | National percentile |
|---|---|---|
| Rock Island County | C | 41st |
| Warren County | D | 35th |
| Gallatin County | D | 35th |
| Clark County | C | 42nd |
| Perry County | C | 44th |
FAQ
How often does power go out in Monroe County?
Between 2014 and 2025, Monroe County recorded 309 outage events, averaging 3.6 hours each.
What is Monroe County's reliability grade?
Monroe County has a Reliability Grade of D, in the 38th national percentile.
What was the worst power outage in Monroe County?
The worst outage on record started March 14, 2025 (Thunderstorm Wind), lasting 56 hours and affecting up to 9,159 customers.