Power outage history
Monroe County New York
2.9hours
without power for the average customer in a typical year, 2018–2025
56th most of 62 in New York 56% 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 Monroe's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2021 was the worst well-recorded year, at 5.8 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Monroe, 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 |
|---|---|---|---|---|---|---|
| Mar 8, 2017 | Windstorm | 102,160 | 34% | 6.0 d | 3.2 d | 6.9M |
| Dec 11, 2021 | Windstorm | 36,421 | 12% | 2.1 d | 46 h | 837k |
| Apr 4, 2018 | Windstorm | 17,783 | 6% | 36 h | 24 h | 361k |
| Mar 6, 2022 | Windstorm | 27,232 | 9% | 28 h | 26 h | 281k |
| Dec 23, 2022 | Winter storm | 21,606 | 7% | 32 h | 31 h | 276k |
| Mar 1, 2017 | Windstorm | 15,040 | 5% | 19 h | 20 h | 127k |
| Oct 15, 2017 | Thunderstorms | 17,472 | 6% | 15 h | 22 h | 124k |
| Jun 21, 2021 | Thunderstorms | 16,255 | 5% | 12 h | 12 h | 121k |
| Jun 10, 2015 | Thunderstorms | 12,978 | 4% | 14 h | 17 h | 120k |
| Jul 16, 2018 | No storm report | 12,482 | 4% | 18 h | 18 h | 106k |
| Oct 31, 2019 | Windstorm | 9,490 | 3% | 20 h | 25 h | 92k |
| Nov 20, 2016 | Winter storm | 16,827 | 6% | 6.5 h | 10 h | 86k |
| Dec 29, 2025 | Windstorm | 11,520 | 4% | 7.8 h | 19 h | 55k |
| Dec 31, 2018 | Windstorm | 10,778 | 4% | 8.2 h | 12 h | 41k |
| Jul 18, 2015 | No storm report | 6,721 | 2% | 6.0 h | 6.2 h | 31k |
| Jan 9, 2024 | Windstorm | 9,150 | 3% | 6.5 h | 5.0 h | 29k |
| Aug 22, 2017 | Thunderstorms | 7,505 | 2% | 4.5 h | 3.0 h | 28k |
| May 15, 2016 | No storm report | 5,396 | 2% | 5.5 h | 3.0 h | 28k |
| Jan 12, 2020 | Windstorm | 9,250 | 3% | 5.2 h | 1.2 h | 28k |
| Aug 16, 2015 | No storm report | 5,286 | 2% | 5.5 h | 2.8 h | 25k |
| Feb 2, 2019 | No storm report | 12,366 | 4% | 2.5 h | 2.8 h | 23k |
| Sep 7, 2016 | No storm report | 4,729 | 2% | 6.2 h | – | 22k |
| Jan 6, 2024 | No storm report | 4,505 | 1% | 5.2 h | – | 20k |
| May 14, 2015 | No storm report | 8,601 | 3% | 2.5 h | 1.5 h | 18k |
| Mar 25, 2023 | Windstorm | 4,330 | 1% | 5.2 h | – | 18k |
| Jul 15, 2024 | Thunderstorms | 6,232 | 2% | 4.8 h | 6.5 h | 18k |
| Jul 4, 2019 | Flooding | 7,610 | 3% | 3.8 h | 2.5 h | 17k |
| May 25, 2020 | No storm report | 5,258 | 2% | 3.2 h | 1.5 h | 17k |
| Feb 25, 2019 | Windstorm | 4,518 | 1% | 6.0 h | – | 17k |
| Feb 28, 2024 | Windstorm | 4,720 | 2% | 4.0 h | – | 17k |
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 Monroe from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Windstorm 64%
- No storm on record 18%
- Winter storm 10%
- Thunderstorms 6.0%
- Flooding 1.5%
Who keeps the lights on
Utilities serving Monroe
As each utility reports to the Energy Information Administration for its whole New York territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Niagara Mohawk Power Corp. | Investor Owned | 242 | 140 | 1.39 | 19.9 | 1.5M |
| Rochester Gas & Electric Corp | Investor Owned | 133 | 89 | 1.22 | 22.0 | 354k |
| Village of Spencerport | NY | – | – | – | – | 44k |
| Village of Fairport | Municipal | 93 | 18 | 1.85 | 7.8 | 16k |
| Village of Churchville | NY | – | – | – | – | 12k |
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
- Orleans 7.5 h
- Wayne 3.7 h
- Genesee 3.6 h
- Livingston 3.5 h
- Monroe (this county) 2.9 h
- Ontario 2.7 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 302,455 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 →