Antrim 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 |
|---|---|---|---|
| Dec 16, 2021 | 86 hrs | 14,851 (76%) | High Wind |
| Dec 24, 2015 | 86 hrs | 8,945 (46%) | High Wind |
| Apr 8, 2021 | 17 hrs | 7,357 (38%) | Thunderstorm Wind |
| Apr 14, 2018 | 11 hrs | 6,280 (32%) | Winter Storm |
| Feb 6, 2025 | 21 hrs | 6,120 (31%) | Unnamed event |
Over the 12 years from 2014 to 2025, Antrim County recorded 997 distinct power outage events, averaging 3.6 hours per event.
The single worst outage on record in Antrim County started December 16, 2021 (High Wind), lasting 86 hours and leaving up to 14,851 customers without power (76% of the county) at its peak.
November has historically been the worst month for outages in Antrim County, with 125 events recorded during that month across the dataset.
Based on this history, Antrim County earns a Reliability Grade of F, placing it in the 9th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Antrim County's outage profile
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Similar counties in Michigan
Counties with the closest reliability grade and national percentile to Antrim County.
| County | Grade | National percentile |
|---|---|---|
| Cass County | F | 9th |
| Gladwin County | F | 8th |
| Monroe County | F | 9th |
| Lenawee County | F | 10th |
| Livingston County | F | 8th |
FAQ
How often does power go out in Antrim County?
Between 2014 and 2025, Antrim County recorded 997 outage events, averaging 3.6 hours each.
What is Antrim County's reliability grade?
Antrim County has a Reliability Grade of F, in the 9th national percentile.
What was the worst power outage in Antrim County?
The worst outage on record started December 16, 2021 (High Wind), lasting 86 hours and affecting up to 14,851 customers.