Laramie County Power Outage History
2016–2025 · Wyoming
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 11, 2016 | 1 hrs | 31,754 (59%) | High Wind |
| Mar 15, 2020 | 31 hrs | 19,300 (36%) | High Wind |
| Feb 2, 2016 | 0 hrs | 12,790 (24%) | High Wind |
| May 18, 2017 | 0 hrs | 12,401 (23%) | Winter Storm |
| Feb 20, 2016 | 0 hrs | 12,313 (23%) | High Wind |
Over the 10 years from 2016 to 2025, Laramie County recorded 250 distinct power outage events, averaging 1.4 hours per event.
The single worst outage on record in Laramie County started February 11, 2016 (High Wind), lasting 1 hours and leaving up to 31,754 customers without power (59% of the county) at its peak.
March has historically been the worst month for outages in Laramie County, with 37 events recorded during that month across the dataset.
Based on this history, Laramie County earns a Reliability Grade of A, placing it in the 93rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Laramie County's outage profile
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Similar counties in Wyoming
Counties with the closest reliability grade and national percentile to Laramie County.
| County | Grade | National percentile |
|---|---|---|
| Niobrara County | A | 93rd |
| Fremont County | A | 94th |
| Uinta County | A | 93rd |
| Washakie County | A | 90th |
| Lincoln County | A | 89th |
FAQ
How often does power go out in Laramie County?
Between 2016 and 2025, Laramie County recorded 250 outage events, averaging 1.4 hours each.
What is Laramie County's reliability grade?
Laramie County has a Reliability Grade of A, in the 93rd national percentile.
What was the worst power outage in Laramie County?
The worst outage on record started February 11, 2016 (High Wind), lasting 1 hours and affecting up to 31,754 customers.