Berks CountyPower Outage History
What this grade means
Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 3, 2020 | 76 hrs | 34,299 (16%) | Thunderstorm Wind |
| Aug 4, 2020 | 85 hrs | 26,109 (12%) | Tropical Storm Isaias |
| Jun 12, 2015 | 17 hrs | 16,491 (8%) | Thunderstorm Wind |
| Apr 15, 2025 | 53 hrs | 16,476 (8%) | Thunderstorm Wind |
| Apr 22, 2023 | 36 hrs | 15,532 (7%) | Tornado |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Berks County, Pennsylvania that day.
Over the 12 years from 2014 to 2025, Berks County recorded 2,565 distinct power outage events, averaging 3.4 hours per event.
The single worst outage on record in Berks County started June 3, 2020 (Thunderstorm Wind), lasting 76 hours and leaving up to 34,299 customers without power (16% of the county) at its peak.
June has historically been the worst month for outages in Berks County, with 351 events recorded during that month across the dataset.
Based on this history, Berks County earns a Reliability Grade of C, placing it in the 48th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Pennsylvania
Counties with the closest reliability grade and national percentile to Berks County.
| County | Grade | National percentile |
|---|---|---|
| Schuylkill County | C | 48th |
| Mifflin County | C | 49th |
| Northampton County | C | 46th |
| Fulton County | C | 46th |
| Carbon County | C | 45th |
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 Berks County?
Between 2014 and 2025, Berks County recorded 2,565 outage events, averaging 3.4 hours each.
What is Berks County's reliability grade?
Berks County has a Reliability Grade of C, in the 48th national percentile.
What was the worst power outage in Berks County?
The worst outage on record started June 3, 2020 (Thunderstorm Wind), lasting 76 hours and affecting up to 34,299 customers.