Power Outages in Dewey County, SD
No live outage feed is available for Dewey County, SD yet — live coverage depends on local utilities reporting to ODIN. In 2025, the average customer here lost power for about 6.7 hours.
Dewey County, SD is served by local tracked utilities.
Dewey County's utilities do not report live data to ODIN, so real-time outage counts aren't available here. The historical record below is complete.
- Heat AdvisoryMODERATE
Dewey County has been under 25 National Weather Service alerts recently — most recently a Heat Advisory on July 19, 2026.
- Heat Advisory ×10
- Extreme Heat Warning ×8
- Red Flag Warning ×4
- Fire Weather Watch ×2
- Special Weather Statement ×1
Hardest-hit cities in Dewey County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Dewey County went about 6.7 hours without power. Peak simultaneous outage on record reached 2,114 customers.
Worst year here was 2025 (peak 2,114 customers out) · decade average 3.9 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2024 | 79 | 371 | 1.0 |
| 2025 | 125 | 2,114 | 6.7 |
Relatively High winter weather exposure · 3.9 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability very high — outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Dewey County: FAQ
- How often does Dewey County, SD lose power?
- Based on EAGLE-I records, Dewey County, SD logged 125 distinct outage events in 2025, averaging about 6.7 hours without power per customer over the year.
- What was the worst power outage in Dewey County, SD?
- The largest tracked outage peaked at 2,114 customers without power, beginning November 25, 2025 and lasting about 3h 30m.
- Is there a power outage in Dewey County, SD right now?
- No major outage is currently reported for Dewey County, SD. Live coverage depends on whether local utilities report to ODIN.
Outages are tracked at the county level; these ZIP codes fall within Dewey County.
57601, 57625, 57630, 57636, 57652, 57656, 57661
Machine-readable data: /api/v1/counties/46041 and /api/v1/counties/46041/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of South Dakota customers).