Dillon County Power Outage History
2014–2025 · South Carolina
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 |
|---|---|---|---|
| Sep 15, 2018 | 93 hrs | 10,662 (64%) | Unnamed event |
| Oct 8, 2016 | 186 hrs | 10,353 (62%) | Hurricane Matthew |
| Dec 19, 2019 | 0 hrs | 9,082 (55%) | Unnamed event |
| Sep 14, 2018 | 16 hrs | 5,638 (34%) | Unnamed event |
| Jul 9, 2016 | 9 hrs | 5,489 (33%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Dillon County recorded 502 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Dillon County started September 15, 2018, lasting 93 hours and leaving up to 10,662 customers without power (64% of the county) at its peak.
July has historically been the worst month for outages in Dillon County, with 71 events recorded during that month across the dataset.
Based on this history, Dillon County earns a Reliability Grade of F, placing it in the 12th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in South Carolina
Counties with the closest reliability grade and national percentile to Dillon County.
| County | Grade | National percentile |
|---|---|---|
| Spartanburg County | F | 12th |
| Anderson County | F | 14th |
| Marion County | F | 14th |
| Abbeville County | F | 15th |
| Greenville County | F | 8th |
FAQ
How often does power go out in Dillon County?
Between 2014 and 2025, Dillon County recorded 502 outage events, averaging 2.9 hours each.
What is Dillon County's reliability grade?
Dillon County has a Reliability Grade of F, in the 12th national percentile.
What was the worst power outage in Dillon County?
The worst outage on record started September 15, 2018, lasting 93 hours and affecting up to 10,662 customers.