Adams County Power Outage History
2014–2025 · Colorado
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 |
|---|---|---|---|
| Feb 15, 2019 | 1 hrs | 102,641 (42%) | Unnamed event |
| Apr 18, 2025 | 2 hrs | 49,942 (21%) | Unnamed event |
| Mar 13, 2019 | 75 hrs | 45,703 (19%) | Blizzard |
| Mar 23, 2016 | 46 hrs | 30,136 (12%) | Winter Storm |
| Oct 20, 2020 | 0 hrs | 25,035 (10%) | Unnamed event |
Over the 12 years from 2014 to 2025, Adams County recorded 1,856 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Adams County started February 15, 2019, lasting 1 hours and leaving up to 102,641 customers without power (42% of the county) at its peak.
August has historically been the worst month for outages in Adams County, with 264 events recorded during that month across the dataset.
Based on this history, Adams County earns a Reliability Grade of B, placing it in the 75th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Adams County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
Similar counties in Colorado
Counties with the closest reliability grade and national percentile to Adams County.
| County | Grade | National percentile |
|---|---|---|
| Logan County | B | 75th |
| Alamosa County | B | 74th |
| Chaffee County | B | 77th |
| Otero County | B | 78th |
| Rio Grande County | B | 78th |
FAQ
How often does power go out in Adams County?
Between 2014 and 2025, Adams County recorded 1,856 outage events, averaging 1.9 hours each.
What is Adams County's reliability grade?
Adams County has a Reliability Grade of B, in the 75th national percentile.
What was the worst power outage in Adams County?
The worst outage on record started February 15, 2019, lasting 1 hours and affecting up to 102,641 customers.