PowerOutageHistory
B

Rio Grande County Power Outage History

20152025 · Colorado

Better than average — fewer or shorter outages than most counties. How grades are calculated

Total events
214
Avg duration
2.5 hrs
Longest outage
19 hrs
National percentile
78th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Mar 12, 201919 hrs5,654 (50%)Winter Storm
Mar 24, 20246 hrs5,402 (48%)Heavy Snow
May 10, 202410 hrs4,661 (42%)Winter Weather
Mar 24, 20248 hrs4,643 (41%)Heavy Snow
Jul 10, 20240 hrs4,283 (38%)Unnamed event

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).

Sized for Rio Grande 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 Rio Grande County.

CountyGradeNational percentile
Otero CountyB78th
Chaffee CountyB77th
Arapahoe CountyB79th
Adams CountyB75th
Logan CountyB75th

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.

Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.