Hughes CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 10, 2020 | 10 hrs | 428 (3%) | Unnamed event |
| Aug 13, 2020 | 4 hrs | 428 (3%) | Unnamed event |
| Aug 11, 2020 | 1 hrs | 428 (3%) | Unnamed event |
| Jul 19, 2024 | 4 hrs | 418 (2%) | Excessive Heat |
| Nov 10, 2022 | 9 hrs | 414 (2%) | Ice Storm |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Hughes County, South Dakota that day.
Over the 6 years from 2019 to 2024, Hughes County recorded 21 distinct power outage events, averaging 4.0 hours per event.
The single worst outage on record in Hughes County started August 10, 2020, lasting 10 hours and leaving up to 428 customers without power (3% of the county) at its peak.
August has historically been the worst month for outages in Hughes County, with 5 events recorded during that month across the dataset.
Based on this history, Hughes County earns a Reliability Grade of A, placing it in the 98th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in South Dakota
Counties with the closest reliability grade and national percentile to Hughes County.
| County | Grade | National percentile |
|---|---|---|
| Gregory County | A | 98th |
| Tripp County | A | 98th |
| Codington County | A | 98th |
| Bennett County | Not ranked | — |
| Jerauld County | A | 96th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Hughes County?
Between 2019 and 2024, Hughes County recorded 21 outage events, averaging 4.0 hours each.
What is Hughes County's reliability grade?
Hughes County has a Reliability Grade of A, in the 98th national percentile.
What was the worst power outage in Hughes County?
The worst outage on record started August 10, 2020, lasting 10 hours and affecting up to 428 customers.