Power outage history
York County Pennsylvania
4.6hours
without power for the average customer in a typical year, 2018–2025
48th most of 67 in Pennsylvania 31% below the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of York's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2023 was the worst well-recorded year, at 9.0 hours for the average customer. Hatched years have a thin record and are left out of the averages.
York, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Aug 7, 2023 | Thunderstorms | 36,294 | 19% | 3.8 d | 3.0 d | 1.2M |
| Jul 16, 2024 | Thunderstorms | 18,730 | 10% | 40 h | 37 h | 277k |
| Mar 2, 2018 | Windstorm | 15,137 | 8% | 47 h | 45 h | 263k |
| Sep 1, 2021 | Hurricane Ida | 11,108 | 6% | 27 h | 22 h | 153k |
| Sep 5, 2017 | Thunderstorms | 18,630 | 10% | 22 h | 3.8 h | 149k |
| Jun 23, 2015 | Thunderstorms | 6,553 | 3% | 40 h | 2.0 d | 107k |
| Jun 3, 2020 | Thunderstorms | 14,874 | 8% | 16 h | 16 h | 91k |
| Sep 21, 2024 | Thunderstorms | 7,714 | 4% | 14 h | 21 h | 64k |
| May 29, 2019 | Thunderstorms | 14,869 | 8% | 16 h | 16 h | 60k |
| Jun 21, 2021 | Thunderstorms | 13,083 | 7% | 9.5 h | 14 h | 52k |
| Sep 7, 2023 | Thunderstorms | 7,251 | 4% | 9.0 h | 16 h | 42k |
| Aug 13, 2021 | Thunderstorms | 8,363 | 4% | 7.5 h | 18 h | 42k |
| Jul 28, 2021 | Thunderstorms | 7,462 | 4% | 7.5 h | 7.0 h | 41k |
| Feb 13, 2024 | Winter storm | 4,571 | 2% | 12 h | – | 37k |
| Feb 24, 2016 | Thunderstorms | 7,965 | 4% | 8.0 h | 15 h | 37k |
| Nov 5, 2025 | No storm report | 4,814 | 2% | 13 h | – | 35k |
| Aug 28, 2020 | Thunderstorms | 7,241 | 4% | 6.8 h | 18 h | 34k |
| Feb 25, 2017 | Thunderstorms | 6,511 | 3% | 8.5 h | 19 h | 33k |
| Feb 18, 2022 | No storm report | 5,546 | 3% | 9.5 h | 10 h | 33k |
| Mar 12, 2022 | Winter storm | 7,869 | 4% | 8.5 h | 5.5 h | 32k |
| Sep 20, 2024 | No storm report | 11,702 | 6% | 4.0 h | 2.8 h | 32k |
| Jul 28, 2023 | Thunderstorms | 7,606 | 4% | 6.0 h | 16 h | 29k |
| Dec 19, 2025 | Thunderstorms | 7,653 | 4% | 6.5 h | 18 h | 27k |
| Dec 23, 2022 | No storm report | 5,365 | 3% | 6.5 h | 16 h | 27k |
| Aug 10, 2021 | Thunderstorms | 8,315 | 4% | 4.5 h | 5.5 h | 26k |
| Mar 10, 2024 | No storm report | 6,112 | 3% | 4.5 h | 3.5 h | 24k |
| Apr 1, 2023 | Thunderstorms | 5,127 | 3% | 7.5 h | 14 h | 24k |
| Jul 22, 2020 | Thunderstorms | 6,681 | 3% | 6.8 h | 10 h | 24k |
| Apr 9, 2020 | No storm report | 7,713 | 4% | 5.0 h | 4.5 h | 23k |
| Jul 21, 2019 | Thunderstorms | 7,412 | 4% | 6.5 h | 6.0 h | 22k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for York from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 63%
- No storm on record 20%
- Windstorm 8.9%
- Tropical storm 4.9%
- Winter storm 2.5%
Who keeps the lights on
Utilities serving York
As each utility reports to the Energy Information Administration for its whole Pennsylvania territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| FirstEnergy Pennsylvania Electric Co | Investor Owned | 647 | 217 | 2.02 | 18.8 | 1.8M |
| PECO Energy Co | Investor Owned | 328 | 59 | 1.12 | 18.0 | 1.5M |
| PPL Electric Utilities Corp | Investor Owned | 198 | 116 | 0.97 | 18.6 | 1.3M |
| Adams Electric Cooperative Inc | Cooperative | – | – | – | 15.4 | 33k |
| Borough of Goldsboro | PA | – | – | – | – | 5.0k |
| Borough of Lewisberry | PA | – | – | – | – | 2.6k |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
- Adams 6.4 h
- Carroll, MD 6.4 h
- Harford, MD 4.7 h
- York (this county) 4.6 h
- Baltimore, MD 4.2 h
- Cumberland 2.9 h
- Lancaster 2.8 h
- Dauphin 1.8 h
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 195,191 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →