St. Thomas County Power Outage History
2019–2025 · United States Virgin Islands
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Dec 15, 2020 | 6 hrs | 22,647 (100%) | Unnamed event |
| May 4, 2020 | 16 hrs | 22,631 (100%) | Unnamed event |
| Jun 18, 2021 | 12 hrs | 22,620 (100%) | Unnamed event |
| Jan 11, 2021 | 9 hrs | 22,564 (99%) | Unnamed event |
| Jan 9, 2021 | 4 hrs | 22,558 (99%) | Unnamed event |
Over the 7 years from 2019 to 2025, St. Thomas County recorded 1,372 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in St. Thomas County started December 15, 2020, lasting 6 hours and leaving up to 22,647 customers without power (100% of the county) at its peak.
June has historically been the worst month for outages in St. Thomas County, with 172 events recorded during that month across the dataset.
Based on this history, St. Thomas County earns a Reliability Grade of F, placing it in the 2nd percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in United States Virgin Islands
Counties with the closest reliability grade and national percentile to St. Thomas County.
| County | Grade | National percentile |
|---|---|---|
| St. Croix County | F | 3rd |
FAQ
How often does power go out in St. Thomas County?
Between 2019 and 2025, St. Thomas County recorded 1,372 outage events, averaging 2.6 hours each.
What is St. Thomas County's reliability grade?
St. Thomas County has a Reliability Grade of F, in the 2nd national percentile.
What was the worst power outage in St. Thomas County?
The worst outage on record started December 15, 2020, lasting 6 hours and affecting up to 22,647 customers.