Delaware County Power Outage History
2014–2025 · New York
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 10, 2018 | 0 hrs | 26,651 (94%) | Unnamed event |
| Jun 24, 2021 | 4 hrs | 13,527 (48%) | Thunderstorm Wind |
| Nov 22, 2024 | 68 hrs | 12,001 (42%) | Drought |
| Apr 19, 2022 | 0 hrs | 9,607 (34%) | Heavy Snow |
| Apr 19, 2022 | 9 hrs | 9,291 (33%) | Heavy Snow |
Over the 12 years from 2014 to 2025, Delaware County recorded 827 distinct power outage events, averaging 4.4 hours per event.
The single worst outage on record in Delaware County started July 10, 2018, lasting 0 hours and leaving up to 26,651 customers without power (94% of the county) at its peak.
July has historically been the worst month for outages in Delaware County, with 122 events recorded during that month across the dataset.
Based on this history, Delaware County earns a Reliability Grade of F, placing it in the 16th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in New York
Counties with the closest reliability grade and national percentile to Delaware County.
| County | Grade | National percentile |
|---|---|---|
| Herkimer County | F | 16th |
| Dutchess County | F | 17th |
| Schuyler County | F | 15th |
| Washington County | F | 18th |
| Yates County | F | 19th |
FAQ
How often does power go out in Delaware County?
Between 2014 and 2025, Delaware County recorded 827 outage events, averaging 4.4 hours each.
What is Delaware County's reliability grade?
Delaware County has a Reliability Grade of F, in the 16th national percentile.
What was the worst power outage in Delaware County?
The worst outage on record started July 10, 2018, lasting 0 hours and affecting up to 26,651 customers.