Caroline County Power Outage History
2015–2025 · Maryland
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 13, 2020 | 5 hrs | 5,791 (33%) | Thunderstorm Wind |
| Oct 12, 2016 | 1 hrs | 5,519 (31%) | Unnamed event |
| Nov 1, 2019 | 2 hrs | 5,105 (29%) | Thunderstorm Wind |
| Jun 19, 2017 | 6 hrs | 4,754 (27%) | Thunderstorm Wind |
| Aug 4, 2020 | 31 hrs | 4,051 (23%) | Tropical Storm Isaias |
Over the 11 years from 2015 to 2025, Caroline County recorded 480 distinct power outage events, averaging 1.5 hours per event.
The single worst outage on record in Caroline County started April 13, 2020 (Thunderstorm Wind), lasting 5 hours and leaving up to 5,791 customers without power (33% of the county) at its peak.
August has historically been the worst month for outages in Caroline County, with 68 events recorded during that month across the dataset.
Based on this history, Caroline County earns a Reliability Grade of B, placing it in the 79th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Caroline County's outage profile
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Outage-prep kit
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Similar counties in Maryland
Counties with the closest reliability grade and national percentile to Caroline County.
| County | Grade | National percentile |
|---|---|---|
| Queen Anne's County | B | 79th |
| Howard County | B | 78th |
| Charles County | A | 80th |
| St. Mary's County | A | 81st |
| Calvert County | B | 76th |
FAQ
How often does power go out in Caroline County?
Between 2015 and 2025, Caroline County recorded 480 outage events, averaging 1.5 hours each.
What is Caroline County's reliability grade?
Caroline County has a Reliability Grade of B, in the 79th national percentile.
What was the worst power outage in Caroline County?
The worst outage on record started April 13, 2020 (Thunderstorm Wind), lasting 5 hours and affecting up to 5,791 customers.