Blackford County Power Outage History
2014–2025 · Indiana
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 |
|---|---|---|---|
| Nov 5, 2017 | 0 hrs | 6,277 (80%) | Tornado |
| Nov 6, 2017 | 1 hrs | 5,782 (73%) | Tornado |
| Nov 6, 2017 | 1 hrs | 5,780 (73%) | Tornado |
| Nov 5, 2017 | 0 hrs | 5,770 (73%) | Tornado |
| Nov 5, 2017 | 1 hrs | 5,765 (73%) | Tornado |
Over the 12 years from 2014 to 2025, Blackford County recorded 325 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Blackford County started November 5, 2017 (Tornado), lasting 0 hours and leaving up to 6,277 customers without power (80% of the county) at its peak.
November has historically been the worst month for outages in Blackford County, with 94 events recorded during that month across the dataset.
Based on this history, Blackford County earns a Reliability Grade of C, placing it in the 52nd percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Indiana
Counties with the closest reliability grade and national percentile to Blackford County.
| County | Grade | National percentile |
|---|---|---|
| Randolph County | C | 51st |
| Lake County | C | 52nd |
| Switzerland County | C | 51st |
| Bartholomew County | C | 51st |
| Sullivan County | C | 53rd |
FAQ
How often does power go out in Blackford County?
Between 2014 and 2025, Blackford County recorded 325 outage events, averaging 2.6 hours each.
What is Blackford County's reliability grade?
Blackford County has a Reliability Grade of C, in the 52nd national percentile.
What was the worst power outage in Blackford County?
The worst outage on record started November 5, 2017 (Tornado), lasting 0 hours and affecting up to 6,277 customers.