PowerOutageHistory
B

Cumberland County Power Outage History

20142025 · Pennsylvania

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

Total events
1,446
Avg duration
2.3 hrs
Longest outage
60 hrs
National percentile
75th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Nov 23, 20161 hrs20,095 (13%)Unnamed event
Feb 13, 202460 hrs18,016 (12%)Heavy Snow
Jun 10, 20241 hrs15,900 (11%)Unnamed event
Jan 14, 20243 hrs11,686 (8%)Flood
Jun 20, 20243 hrs10,481 (7%)Unnamed event

Over the 12 years from 2014 to 2025, Cumberland County recorded 1,446 distinct power outage events, averaging 2.3 hours per event.

The single worst outage on record in Cumberland County started November 23, 2016, lasting 1 hours and leaving up to 20,095 customers without power (13% of the county) at its peak.

June has historically been the worst month for outages in Cumberland County, with 175 events recorded during that month across the dataset.

Based on this history, Cumberland County earns a Reliability Grade of B, placing it in the 75th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Cumberland 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 Pennsylvania

Counties with the closest reliability grade and national percentile to Cumberland County.

CountyGradeNational percentile
Luzerne CountyB77th
Lehigh CountyB72nd
Somerset CountyB70th
Lancaster CountyB80th
Lackawanna CountyB68th

FAQ

How often does power go out in Cumberland County?

Between 2014 and 2025, Cumberland County recorded 1,446 outage events, averaging 2.3 hours each.

What is Cumberland County's reliability grade?

Cumberland County has a Reliability Grade of B, in the 75th national percentile.

What was the worst power outage in Cumberland County?

The worst outage on record started November 23, 2016, lasting 1 hours and affecting up to 20,095 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.