Delta County Power Outage History
2014–2025 · Michigan
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 2, 2024 | 57 hrs | 6,367 (24%) | Winter Storm |
| Feb 27, 2019 | 1 hrs | 5,046 (19%) | Winter Storm |
| Aug 25, 2015 | 0 hrs | 4,681 (18%) | Unnamed event |
| Sep 15, 2015 | 3 hrs | 4,680 (18%) | Unnamed event |
| Aug 31, 2015 | 2 hrs | 4,670 (18%) | Unnamed event |
Over the 12 years from 2014 to 2025, Delta County recorded 245 distinct power outage events, averaging 3.8 hours per event.
The single worst outage on record in Delta County started April 2, 2024 (Winter Storm), lasting 57 hours and leaving up to 6,367 customers without power (24% of the county) at its peak.
June has historically been the worst month for outages in Delta County, with 33 events recorded during that month across the dataset.
Based on this history, Delta County earns a Reliability Grade of C, placing it in the 60th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Delta County's outage profile
See more picks in our Best Dual-Fuel Portable Generators for Power Outages roundup.
Champion Power Equipment 4375-Watt Dual Fuel RV Ready Portable Generator with Free 3-Year Warranty
Outage-prep kit
See our outage-prep guides or the Michigan storm prep checklist.
Similar counties in Michigan
Counties with the closest reliability grade and national percentile to Delta County.
| County | Grade | National percentile |
|---|---|---|
| Bay County | B | 61st |
| Luce County | C | 57th |
| Schoolcraft County | C | 57th |
| Presque Isle County | C | 54th |
| Saginaw County | C | 52nd |
FAQ
How often does power go out in Delta County?
Between 2014 and 2025, Delta County recorded 245 outage events, averaging 3.8 hours each.
What is Delta County's reliability grade?
Delta County has a Reliability Grade of C, in the 60th national percentile.
What was the worst power outage in Delta County?
The worst outage on record started April 2, 2024 (Winter Storm), lasting 57 hours and affecting up to 6,367 customers.