Washington CountyPower Outage History
What this grade means
Worse than average — more frequent or longer outages than most counties. This county's recorded history shows more frequent outages and/or longer restoration times than most US counties over the same 12-year period. If you live here, it's worth taking backup power more seriously than an average household would.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 1, 2023 | 94 hrs | 4,804 (58%) | Thunderstorm Wind |
| Jan 6, 2025 | 10 hrs | 3,750 (45%) | Winter Storm |
| May 31, 2018 | 16 hrs | 2,317 (28%) | Hail |
| Feb 16, 2021 | 5 hrs | 2,286 (28%) | Heavy Snow |
| Jul 5, 2021 | 1 hrs | 1,987 (24%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Washington County, Illinois that day.
Over the 12 years from 2014 to 2025, Washington County recorded 528 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Washington County started July 1, 2023 (Thunderstorm Wind), lasting 94 hours and leaving up to 4,804 customers without power (58% of the county) at its peak.
July has historically been the worst month for outages in Washington County, with 62 events recorded during that month across the dataset.
Based on this history, Washington County earns a Reliability Grade of D, placing it in the 31st percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Illinois
Counties with the closest reliability grade and national percentile to Washington County.
| County | Grade | National percentile |
|---|---|---|
| De Witt County | D | 32nd |
| Edgar County | D | 29th |
| Gallatin County | D | 35th |
| Warren County | D | 35th |
| Putnam County | D | 26th |
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 Washington County?
Between 2014 and 2025, Washington County recorded 528 outage events, averaging 3.0 hours each.
What is Washington County's reliability grade?
Washington County has a Reliability Grade of D, in the 31st national percentile.
What was the worst power outage in Washington County?
The worst outage on record started July 1, 2023 (Thunderstorm Wind), lasting 94 hours and affecting up to 4,804 customers.