District of Columbia County Power Outage History
2014–2025 · District of Columbia
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 |
|---|---|---|---|
| Mar 2, 2018 | 89 hrs | 76,819 (24%) | Dense Fog |
| Mar 6, 2025 | 4 hrs | 31,577 (10%) | Unnamed event |
| Jul 27, 2019 | 12 hrs | 31,322 (10%) | Excessive Heat |
| Jan 3, 2022 | 13 hrs | 26,869 (8%) | Winter Storm |
| Nov 20, 2023 | 1 hrs | 26,583 (8%) | Unnamed event |
Over the 12 years from 2014 to 2025, District of Columbia County recorded 3,131 distinct power outage events, averaging 2.1 hours per event.
The single worst outage on record in District of Columbia County started March 2, 2018 (Dense Fog), lasting 89 hours and leaving up to 76,819 customers without power (24% of the county) at its peak.
July has historically been the worst month for outages in District of Columbia County, with 424 events recorded during that month across the dataset.
Based on this history, District of Columbia County earns a Reliability Grade of B, placing it in the 76th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for District of Columbia County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
FAQ
How often does power go out in District of Columbia County?
Between 2014 and 2025, District of Columbia County recorded 3,131 outage events, averaging 2.1 hours each.
What is District of Columbia County's reliability grade?
District of Columbia County has a Reliability Grade of B, in the 76th national percentile.
What was the worst power outage in District of Columbia County?
The worst outage on record started March 2, 2018 (Dense Fog), lasting 89 hours and affecting up to 76,819 customers.