Rio Grande 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 |
|---|---|---|---|
| Mar 12, 2019 | 19 hrs | 5,654 (50%) | Winter Storm |
| Mar 24, 2024 | 6 hrs | 5,402 (48%) | Heavy Snow |
| May 10, 2024 | 10 hrs | 4,661 (42%) | Heavy Snow |
| Mar 24, 2024 | 8 hrs | 4,643 (41%) | Heavy Snow |
| Jul 10, 2024 | <1 hr | 4,283 (38%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Rio Grande County, Colorado that day.
Over the 11 years from 2015 to 2025, Rio Grande County recorded 214 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Rio Grande County started March 12, 2019 (Winter Storm), lasting 19 hours and leaving up to 5,654 customers without power (50% of the county) at its peak.
July has historically been the worst month for outages in Rio Grande County, with 29 events recorded during that month across the dataset.
Based on this history, Rio Grande County earns a Reliability Grade of B, placing it in the 78th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Colorado
Counties with the closest reliability grade and national percentile to Rio Grande County.
| County | Grade | National percentile |
|---|---|---|
| Otero County | B | 78th |
| Chaffee County | B | 77th |
| Arapahoe County | B | 79th |
| Adams County | B | 75th |
| Logan County | B | 75th |
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 Rio Grande County?
Between 2015 and 2025, Rio Grande County recorded 214 outage events, averaging 2.5 hours each.
What is Rio Grande County's reliability grade?
Rio Grande County has a Reliability Grade of B, in the 78th national percentile.
What was the worst power outage in Rio Grande County?
The worst outage on record started March 12, 2019 (Winter Storm), lasting 19 hours and affecting up to 5,654 customers.