Moody CountyPower Outage History
2017–2025 · South Dakota
Average — typical outage frequency and duration nationally.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 12, 2022 | 71 hrs | 1,528 (33%) | High Wind |
| Apr 10, 2019 | 106 hrs | 921 (20%) | Flood |
| Jun 2, 2018 | 1 hrs | 899 (19%) | Unnamed event |
| May 9, 2019 | 2 hrs | 509 (11%) | Flood |
| Dec 2, 2018 | <1 hr | 507 (11%) | Unnamed event |
Over the 9 years from 2017 to 2025, Moody County recorded 321 distinct power outage events, averaging 3.9 hours per event.
The single worst outage on record in Moody County started May 12, 2022 (High Wind), lasting 71 hours and leaving up to 1,528 customers without power (33% of the county) at its peak.
July has historically been the worst month for outages in Moody County, with 39 events recorded during that month across the dataset.
Based on this history, Moody County earns a Reliability Grade of C, placing it in the 54th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in South Dakota
Counties with the closest reliability grade and national percentile to Moody County.
| County | Grade | National percentile |
|---|---|---|
| Miner County | C | 53rd |
| Haakon County | C | 57th |
| Deuel County | C | 57th |
| Sanborn County | C | 49th |
| Minnehaha County | B | 61st |
Most reliable counties in South Dakota
The top 3 counties in South Dakota by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Clay County | A | 100th |
| Codington County | A | 98th |
| Tripp County | A | 98th |
Least reliable counties in South Dakota
The bottom 3 counties in South Dakota by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Harding County | D | 21st |
| Perkins County | D | 29th |
| Custer County | D | 30th |
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 Moody County?
Between 2017 and 2025, Moody County recorded 321 outage events, averaging 3.9 hours each.
What is Moody County's reliability grade?
Moody County has a Reliability Grade of C, in the 54th national percentile.
What was the worst power outage in Moody County?
The worst outage on record started May 12, 2022 (High Wind), lasting 71 hours and affecting up to 1,528 customers.