Nowata CountyPower Outage History
2014–2025 · Oklahoma
Average — typical outage frequency and duration nationally.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 27, 2016 | 11 hrs | 3,742 (61%) | Unnamed event |
| Jun 12, 2018 | 17 hrs | 3,331 (54%) | Unnamed event |
| May 3, 2018 | 8 hrs | 2,927 (48%) | Thunderstorm Wind |
| Jul 20, 2017 | 4 hrs | 2,919 (48%) | Unnamed event |
| Jun 22, 2018 | 3 hrs | 2,895 (47%) | Unnamed event |
Over the 12 years from 2014 to 2025, Nowata County recorded 743 distinct power outage events, averaging 2.1 hours per event.
The single worst outage on record in Nowata County started April 27, 2016, lasting 11 hours and leaving up to 3,742 customers without power (61% of the county) at its peak.
August has historically been the worst month for outages in Nowata County, with 96 events recorded during that month across the dataset.
Based on this history, Nowata County earns a Reliability Grade of C, placing it in the 53rd percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Oklahoma
Counties with the closest reliability grade and national percentile to Nowata County.
| County | Grade | National percentile |
|---|---|---|
| Okfuskee County | C | 53rd |
| Garfield County | C | 54th |
| Coal County | C | 54th |
| Choctaw County | C | 51st |
| Major County | C | 51st |
Most reliable counties in Oklahoma
The top 3 counties in Oklahoma by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Texas County | A | 96th |
| Kay County | A | 95th |
| Greer County | A | 89th |
Least reliable counties in Oklahoma
The bottom 3 counties in Oklahoma by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Caddo County | F | 4th |
| Washita County | F | 10th |
| Oklahoma County | F | 15th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Nowata County?
Between 2014 and 2025, Nowata County recorded 743 outage events, averaging 2.1 hours each.
What is Nowata County's reliability grade?
Nowata County has a Reliability Grade of C, in the 53rd national percentile.
What was the worst power outage in Nowata County?
The worst outage on record started April 27, 2016, lasting 11 hours and affecting up to 3,742 customers.