Garrett County Power Outage History
2014–2025 · Maryland
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 |
|---|---|---|---|
| Dec 16, 2019 | 94 hrs | 8,670 (42%) | Unnamed event |
| Jun 20, 2025 | 2 hrs | 5,808 (28%) | Unnamed event |
| Mar 28, 2021 | 3 hrs | 4,623 (23%) | Unnamed event |
| Jan 11, 2020 | 3 hrs | 4,561 (22%) | Unnamed event |
| Mar 10, 2018 | 2 hrs | 4,508 (22%) | Unnamed event |
Over the 12 years from 2014 to 2025, Garrett County recorded 814 distinct power outage events, averaging 3.8 hours per event.
The single worst outage on record in Garrett County started December 16, 2019, lasting 94 hours and leaving up to 8,670 customers without power (42% of the county) at its peak.
December has historically been the worst month for outages in Garrett County, with 80 events recorded during that month across the dataset.
Based on this history, Garrett County earns a Reliability Grade of D, placing it in the 27th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Garrett County's outage profile
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Similar counties in Maryland
Counties with the closest reliability grade and national percentile to Garrett County.
| County | Grade | National percentile |
|---|---|---|
| Allegany County | C | 43rd |
| Carroll County | C | 49th |
| Cecil County | C | 51st |
| Harford County | C | 56th |
| Baltimore County | C | 58th |
FAQ
How often does power go out in Garrett County?
Between 2014 and 2025, Garrett County recorded 814 outage events, averaging 3.8 hours each.
What is Garrett County's reliability grade?
Garrett County has a Reliability Grade of D, in the 27th national percentile.
What was the worst power outage in Garrett County?
The worst outage on record started December 16, 2019, lasting 94 hours and affecting up to 8,670 customers.