Randolph 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 |
|---|---|---|---|
| Apr 17, 2017 | 4 hrs | 5,667 (29%) | Unnamed event |
| Mar 1, 2017 | 4 hrs | 5,023 (25%) | Hail |
| Jul 29, 2023 | 43 hrs | 4,304 (22%) | Excessive Heat |
| May 19, 2022 | 30 hrs | 3,958 (20%) | Thunderstorm Wind |
| Apr 24, 2021 | 4 hrs | 3,857 (19%) | Unnamed event |
Over the 12 years from 2014 to 2025, Randolph County recorded 408 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in Randolph County started April 17, 2017, lasting 4 hours and leaving up to 5,667 customers without power (29% of the county) at its peak.
June has historically been the worst month for outages in Randolph County, with 48 events recorded during that month across the dataset.
Based on this history, Randolph County earns a Reliability Grade of B, placing it in the 61st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Randolph 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 Randolph County.
| County | Grade | National percentile |
|---|---|---|
| Winnebago County | B | 61st |
| Crawford County | B | 60th |
| Whiteside County | B | 60th |
| Alexander County | B | 60th |
| Franklin County | B | 62nd |
FAQ
How often does power go out in Randolph County?
Between 2014 and 2025, Randolph County recorded 408 outage events, averaging 3.3 hours each.
What is Randolph County's reliability grade?
Randolph County has a Reliability Grade of B, in the 61st national percentile.
What was the worst power outage in Randolph County?
The worst outage on record started April 17, 2017, lasting 4 hours and affecting up to 5,667 customers.