Tioga 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 | 19,104 (79%) | Unnamed event |
| May 6, 2016 | 3 hrs | 11,290 (47%) | Unnamed event |
| Jul 24, 2018 | 4 hrs | 10,010 (41%) | Unnamed event |
| Apr 20, 2022 | 65 hrs | 8,608 (36%) | Heavy Snow |
| Apr 19, 2022 | 13 hrs | 8,256 (34%) | Heavy Snow |
Over the 12 years from 2014 to 2025, Tioga County recorded 773 distinct power outage events, averaging 3.7 hours per event.
The single worst outage on record in Tioga County started July 10, 2018, lasting 0 hours and leaving up to 19,104 customers without power (79% of the county) at its peak.
July has historically been the worst month for outages in Tioga County, with 114 events recorded during that month across the dataset.
Based on this history, Tioga County earns a Reliability Grade of F, placing it in the 19th 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 Tioga County.
| County | Grade | National percentile |
|---|---|---|
| Yates County | F | 19th |
| Washington County | F | 18th |
| Dutchess County | F | 17th |
| Herkimer County | F | 16th |
| Greene County | D | 23rd |
FAQ
How often does power go out in Tioga County?
Between 2014 and 2025, Tioga County recorded 773 outage events, averaging 3.7 hours each.
What is Tioga County's reliability grade?
Tioga County has a Reliability Grade of F, in the 19th national percentile.
What was the worst power outage in Tioga County?
The worst outage on record started July 10, 2018, lasting 0 hours and affecting up to 19,104 customers.