Westchester County Power Outage History
2014–2025 · New York
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 4, 2020 | 203 hrs | 124,918 (31%) | Hurricane Isaias |
| Mar 2, 2018 | 83 hrs | 88,376 (22%) | Winter Weather |
| Mar 6, 2018 | 147 hrs | 50,167 (12%) | Winter Weather |
| Mar 6, 2018 | 0 hrs | 47,934 (12%) | Winter Weather |
| May 15, 2018 | 99 hrs | 37,259 (9%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Westchester County recorded 3,629 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Westchester County started August 4, 2020 (Hurricane Isaias), lasting 203 hours and leaving up to 124,918 customers without power (31% of the county) at its peak.
July has historically been the worst month for outages in Westchester County, with 464 events recorded during that month across the dataset.
Based on this history, Westchester County earns a Reliability Grade of D, placing it in the 29th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Westchester County's outage profile
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Similar counties in New York
Counties with the closest reliability grade and national percentile to Westchester County.
| County | Grade | National percentile |
|---|---|---|
| Lewis County | D | 29th |
| Wyoming County | D | 29th |
| Steuben County | D | 29th |
| Allegany County | D | 31st |
| Schoharie County | D | 26th |
FAQ
How often does power go out in Westchester County?
Between 2014 and 2025, Westchester County recorded 3,629 outage events, averaging 2.4 hours each.
What is Westchester County's reliability grade?
Westchester County has a Reliability Grade of D, in the 29th national percentile.
What was the worst power outage in Westchester County?
The worst outage on record started August 4, 2020 (Hurricane Isaias), lasting 203 hours and affecting up to 124,918 customers.