Laramie CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 11, 2016 | <1 hr | 31,754 (59%) | High Wind |
| Mar 15, 2020 | 31 hrs | 19,300 (36%) | High Wind |
| Feb 2, 2016 | <1 hr | 12,790 (24%) | High Wind |
| May 18, 2017 | <1 hr | 12,401 (23%) | Winter Storm |
| Feb 20, 2016 | <1 hr | 12,313 (23%) | High Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Laramie County, Wyoming that day.
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 less than 1 hour 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).
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 |
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 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 less than 1 hour and affecting up to 31,754 customers.