Morris County Power Outage History
2015–2025 · New Jersey
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 |
|---|---|---|---|
| Aug 4, 2020 | 151 hrs | 133,793 (61%) | Hurricane Isaias |
| Mar 6, 2018 | 166 hrs | 60,709 (28%) | Winter Storm |
| Mar 2, 2018 | 81 hrs | 55,197 (25%) | Winter Storm |
| Jul 30, 2016 | 24 hrs | 49,276 (23%) | Lightning |
| Oct 29, 2017 | 27 hrs | 42,494 (19%) | Flood |
Over the 11 years from 2015 to 2025, Morris County recorded 3,622 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Morris County started August 4, 2020 (Hurricane Isaias), lasting 151 hours and leaving up to 133,793 customers without power (61% of the county) at its peak.
July has historically been the worst month for outages in Morris County, with 437 events recorded during that month across the dataset.
Based on this history, Morris County earns a Reliability Grade of F, placing it in the 13th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Morris County's outage profile
See more picks in our Best Dual-Fuel Portable Generators for Power Outages roundup.
Champion Power Equipment 4375-Watt Dual Fuel RV Ready Portable Generator with Free 3-Year Warranty
Outage-prep kit
See our outage-prep guides.
Similar counties in New Jersey
Counties with the closest reliability grade and national percentile to Morris County.
| County | Grade | National percentile |
|---|---|---|
| Warren County | F | 13th |
| Hunterdon County | F | 8th |
| Sussex County | F | 6th |
| Monmouth County | D | 26th |
| Burlington County | D | 32nd |
FAQ
How often does power go out in Morris County?
Between 2015 and 2025, Morris County recorded 3,622 outage events, averaging 2.8 hours each.
What is Morris County's reliability grade?
Morris County has a Reliability Grade of F, in the 13th national percentile.
What was the worst power outage in Morris County?
The worst outage on record started August 4, 2020 (Hurricane Isaias), lasting 151 hours and affecting up to 133,793 customers.