Oakland County Power Outage History
2014–2025 · Michigan
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 12, 2021 | 102 hrs | 159,871 (25%) | Thunderstorm Wind |
| Feb 12, 2020 | 0 hrs | 156,519 (24%) | Unnamed event |
| Aug 12, 2021 | 3 hrs | 152,205 (24%) | Thunderstorm Wind |
| Aug 30, 2022 | 6 hrs | 143,689 (22%) | Thunderstorm Wind |
| Feb 22, 2023 | 370 hrs | 142,457 (22%) | Ice Storm |
Over the 12 years from 2014 to 2025, Oakland County recorded 5,455 distinct power outage events, averaging 4.0 hours per event.
The single worst outage on record in Oakland County started August 12, 2021 (Thunderstorm Wind), lasting 102 hours and leaving up to 159,871 customers without power (25% of the county) at its peak.
June has historically been the worst month for outages in Oakland County, with 663 events recorded during that month across the dataset.
Based on this history, Oakland County earns a Reliability Grade of F, placing it in the 11th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Oakland 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 Oakland County.
| County | Grade | National percentile |
|---|---|---|
| Washtenaw County | F | 11th |
| Berrien County | F | 11th |
| Jackson County | F | 11th |
| Ionia County | F | 12th |
| Charlevoix County | F | 10th |
FAQ
How often does power go out in Oakland County?
Between 2014 and 2025, Oakland County recorded 5,455 outage events, averaging 4.0 hours each.
What is Oakland County's reliability grade?
Oakland County has a Reliability Grade of F, in the 11th national percentile.
What was the worst power outage in Oakland County?
The worst outage on record started August 12, 2021 (Thunderstorm Wind), lasting 102 hours and affecting up to 159,871 customers.