Lehigh 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 |
|---|---|---|---|
| Nov 7, 2022 | 3 hrs | 28,690 (14%) | Unnamed event |
| Jun 26, 2024 | 31 hrs | 24,734 (12%) | Thunderstorm Wind |
| Aug 8, 2023 | 4 hrs | 24,460 (12%) | Thunderstorm Wind |
| Aug 7, 2023 | 1 hrs | 22,622 (11%) | Thunderstorm Wind |
| Jan 26, 2020 | <1 hr | 21,082 (10%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Lehigh County, Pennsylvania that day.
Over the 12 years from 2014 to 2025, Lehigh County recorded 1,957 distinct power outage events, averaging 2.1 hours per event.
The single worst outage on record in Lehigh County started November 7, 2022, lasting 3 hours and leaving up to 28,690 customers without power (14% of the county) at its peak.
July has historically been the worst month for outages in Lehigh County, with 216 events recorded during that month across the dataset.
Based on this history, Lehigh County earns a Reliability Grade of B, placing it in the 72nd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Pennsylvania
Counties with the closest reliability grade and national percentile to Lehigh County.
| County | Grade | National percentile |
|---|---|---|
| Somerset County | B | 70th |
| Cumberland County | B | 75th |
| Lackawanna County | B | 68th |
| Blair County | B | 67th |
| Snyder County | B | 67th |
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 Lehigh County?
Between 2014 and 2025, Lehigh County recorded 1,957 outage events, averaging 2.1 hours each.
What is Lehigh County's reliability grade?
Lehigh County has a Reliability Grade of B, in the 72nd national percentile.
What was the worst power outage in Lehigh County?
The worst outage on record started November 7, 2022, lasting 3 hours and affecting up to 28,690 customers.