New York County Power Outage History
2015–2025 · New York
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 7, 2020 | 3 hrs | 137,473 (16%) | Hurricane Isaias |
| Apr 20, 2022 | 0 hrs | 2,213 (0%) | Unnamed event |
| Jul 1, 2021 | 10 hrs | 2,003 (0%) | Thunderstorm Wind |
| Jul 1, 2021 | 2 hrs | 1,914 (0%) | Thunderstorm Wind |
| Jul 2, 2022 | 17 hrs | 1,380 (0%) | Unnamed event |
Over the 11 years from 2015 to 2025, New York County recorded 304 distinct power outage events, averaging 3.9 hours per event.
The single worst outage on record in New York County started August 7, 2020 (Hurricane Isaias), lasting 3 hours and leaving up to 137,473 customers without power (16% of the county) at its peak.
February has historically been the worst month for outages in New York County, with 58 events recorded during that month across the dataset.
Based on this history, New York County earns a Reliability Grade of A, placing it in the 99th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for New York County's outage profile
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Outage-prep kit
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Similar counties in New York
Counties with the closest reliability grade and national percentile to New York County.
| County | Grade | National percentile |
|---|---|---|
| Kings County | A | 95th |
| Bronx County | A | 93rd |
| Queens County | A | 91st |
| Richmond County | A | 84th |
| Onondaga County | B | 76th |
FAQ
How often does power go out in New York County?
Between 2015 and 2025, New York County recorded 304 outage events, averaging 3.9 hours each.
What is New York County's reliability grade?
New York County has a Reliability Grade of A, in the 99th national percentile.
What was the worst power outage in New York County?
The worst outage on record started August 7, 2020 (Hurricane Isaias), lasting 3 hours and affecting up to 137,473 customers.