Ulster CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 4, 2022 | 112 hrs | 47,925 (49%) | Cold/Wind Chill |
| Mar 2, 2018 | 87 hrs | 29,745 (30%) | Winter Storm |
| Sep 7, 2023 | 48 hrs | 19,783 (20%) | Heat |
| Feb 25, 2017 | 44 hrs | 19,621 (20%) | Thunderstorm Wind |
| Mar 7, 2018 | 47 hrs | 19,596 (20%) | Winter Storm |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Ulster County, New York that day.
Over the 12 years from 2014 to 2025, Ulster County recorded 2,358 distinct power outage events, averaging 3.5 hours per event.
The single worst outage on record in Ulster County started February 4, 2022 (Cold/Wind Chill), lasting 112 hours and leaving up to 47,925 customers without power (49% of the county) at its peak.
July has historically been the worst month for outages in Ulster County, with 316 events recorded during that month across the dataset.
Based on this history, Ulster County earns a Reliability Grade of F, placing it in the 10th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in New York
Counties with the closest reliability grade and national percentile to Ulster County.
| County | Grade | National percentile |
|---|---|---|
| Sullivan County | F | 10th |
| Warren County | F | 11th |
| Chenango County | F | 12th |
| Essex County | F | 13th |
| Columbia County | F | 13th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Ulster County?
Between 2014 and 2025, Ulster County recorded 2,358 outage events, averaging 3.5 hours each.
What is Ulster County's reliability grade?
Ulster County has a Reliability Grade of F, in the 10th national percentile.
What was the worst power outage in Ulster County?
The worst outage on record started February 4, 2022 (Cold/Wind Chill), lasting 112 hours and affecting up to 47,925 customers.