Hardin County Power Outage History
2014–2025 · Iowa
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 |
|---|---|---|---|
| Aug 10, 2020 | 151 hrs | 3,769 (53%) | Thunderstorm Wind |
| Aug 15, 2025 | 2 hrs | 3,393 (47%) | Thunderstorm Wind |
| Jun 20, 2025 | 15 hrs | 3,158 (44%) | Heavy Rain |
| Apr 29, 2020 | 2 hrs | 2,888 (40%) | Unnamed event |
| Dec 11, 2021 | 2 hrs | 2,872 (40%) | Unnamed event |
Over the 12 years from 2014 to 2025, Hardin County recorded 258 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Hardin County started August 10, 2020 (Thunderstorm Wind), lasting 151 hours and leaving up to 3,769 customers without power (53% of the county) at its peak.
June has historically been the worst month for outages in Hardin County, with 46 events recorded during that month across the dataset.
Based on this history, Hardin County earns a Reliability Grade of C, placing it in the 52nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Hardin County's outage profile
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Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Hardin County.
| County | Grade | National percentile |
|---|---|---|
| Jefferson County | C | 52nd |
| Van Buren County | C | 52nd |
| Worth County | C | 51st |
| Keokuk County | C | 51st |
| Howard County | C | 54th |
FAQ
How often does power go out in Hardin County?
Between 2014 and 2025, Hardin County recorded 258 outage events, averaging 2.4 hours each.
What is Hardin County's reliability grade?
Hardin County has a Reliability Grade of C, in the 52nd national percentile.
What was the worst power outage in Hardin County?
The worst outage on record started August 10, 2020 (Thunderstorm Wind), lasting 151 hours and affecting up to 3,769 customers.