Clay CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 8, 2022 | 44 hrs | 25,403 (17%) | Thunderstorm Wind |
| Oct 14, 2017 | 49 hrs | 21,211 (15%) | Thunderstorm Wind |
| Jun 18, 2017 | 65 hrs | 20,929 (14%) | Hail |
| Aug 10, 2021 | 15 hrs | 20,234 (14%) | Unnamed event |
| Jul 23, 2017 | 64 hrs | 17,679 (12%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Clay County, Missouri that day.
Over the 12 years from 2014 to 2025, Clay County recorded 1,013 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Clay County started June 8, 2022 (Thunderstorm Wind), lasting 44 hours and leaving up to 25,403 customers without power (17% of the county) at its peak.
June has historically been the worst month for outages in Clay County, with 143 events recorded during that month across the dataset.
Based on this history, Clay County earns a Reliability Grade of B, placing it in the 66th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Missouri
Counties with the closest reliability grade and national percentile to Clay County.
| County | Grade | National percentile |
|---|---|---|
| Clinton County | B | 65th |
| Miller County | B | 66th |
| Mississippi County | B | 65th |
| Maries County | B | 66th |
| Carroll County | B | 64th |
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 Clay County?
Between 2014 and 2025, Clay County recorded 1,013 outage events, averaging 2.4 hours each.
What is Clay County's reliability grade?
Clay County has a Reliability Grade of B, in the 66th national percentile.
What was the worst power outage in Clay County?
The worst outage on record started June 8, 2022 (Thunderstorm Wind), lasting 44 hours and affecting up to 25,403 customers.