McClain County Power Outage History
2014–2025 · Oklahoma
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 20, 2023 | 8 hrs | 11,712 (52%) | Hail |
| Mar 21, 2016 | 1 hrs | 9,638 (43%) | Hail |
| Nov 28, 2015 | 7 hrs | 9,626 (43%) | Ice Storm |
| Dec 27, 2015 | 1 hrs | 9,584 (42%) | Tornado |
| Oct 27, 2020 | 108 hrs | 5,566 (25%) | Ice Storm |
Over the 12 years from 2014 to 2025, McClain County recorded 503 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in McClain County started April 20, 2023 (Hail), lasting 8 hours and leaving up to 11,712 customers without power (52% of the county) at its peak.
June has historically been the worst month for outages in McClain County, with 70 events recorded during that month across the dataset.
Based on this history, McClain County earns a Reliability Grade of B, placing it in the 61st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for McClain County's outage profile
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Similar counties in Oklahoma
Counties with the closest reliability grade and national percentile to McClain County.
| County | Grade | National percentile |
|---|---|---|
| Ottawa County | B | 61st |
| Beckham County | C | 60th |
| Rogers County | B | 62nd |
| Alfalfa County | C | 59th |
| Carter County | B | 63rd |
FAQ
How often does power go out in McClain County?
Between 2014 and 2025, McClain County recorded 503 outage events, averaging 2.0 hours each.
What is McClain County's reliability grade?
McClain County has a Reliability Grade of B, in the 61st national percentile.
What was the worst power outage in McClain County?
The worst outage on record started April 20, 2023 (Hail), lasting 8 hours and affecting up to 11,712 customers.