Davison County Power Outage History
2019–2025 · South Dakota
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 12, 2022 | 6 hrs | 6,327 (40%) | Drought |
| Jul 26, 2022 | 2 hrs | 6,153 (39%) | Flood |
| Jun 9, 2020 | 31 hrs | 3,951 (25%) | Flood |
| Jul 26, 2023 | 12 hrs | 3,518 (22%) | Drought |
| Jun 22, 2024 | 1 hrs | 2,735 (17%) | Flash Flood |
Over the 7 years from 2019 to 2025, Davison County recorded 99 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Davison County started May 12, 2022 (Drought), lasting 6 hours and leaving up to 6,327 customers without power (40% of the county) at its peak.
June has historically been the worst month for outages in Davison County, with 17 events recorded during that month across the dataset.
Based on this history, Davison County earns a Reliability Grade of A, placing it in the 90th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Davison County's outage profile
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Similar counties in South Dakota
Counties with the closest reliability grade and national percentile to Davison County.
| County | Grade | National percentile |
|---|---|---|
| Charles Mix County | A | 90th |
| Brown County | A | 90th |
| Hutchinson County | A | 90th |
| Douglas County | A | 90th |
| Brookings County | A | 91st |
FAQ
How often does power go out in Davison County?
Between 2019 and 2025, Davison County recorded 99 outage events, averaging 2.7 hours each.
What is Davison County's reliability grade?
Davison County has a Reliability Grade of A, in the 90th national percentile.
What was the worst power outage in Davison County?
The worst outage on record started May 12, 2022 (Drought), lasting 6 hours and affecting up to 6,327 customers.