Kittitas 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 |
|---|---|---|---|
| May 16, 2023 | 1 hrs | 10,749 (49%) | Unnamed event |
| Oct 13, 2020 | 26 hrs | 8,930 (41%) | Unnamed event |
| Oct 25, 2024 | <1 hr | 8,531 (39%) | Unnamed event |
| Jan 9, 2024 | 14 hrs | 8,394 (38%) | Heavy Snow |
| Dec 17, 2025 | 62 hrs | 6,665 (30%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Kittitas County, Washington that day.
Over the 11 years from 2015 to 2025, Kittitas County recorded 467 distinct power outage events, averaging 4.3 hours per event.
The single worst outage on record in Kittitas County started May 16, 2023, lasting 1 hours and leaving up to 10,749 customers without power (49% of the county) at its peak.
January has historically been the worst month for outages in Kittitas County, with 70 events recorded during that month across the dataset.
Based on this history, Kittitas County earns a Reliability Grade of D, placing it in the 31st percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Washington
Counties with the closest reliability grade and national percentile to Kittitas County.
| County | Grade | National percentile |
|---|---|---|
| Garfield County | D | 32nd |
| Thurston County | D | 33rd |
| King County | D | 28th |
| Jefferson County | D | 34th |
| Whatcom County | D | 24th |
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 Kittitas County?
Between 2015 and 2025, Kittitas County recorded 467 outage events, averaging 4.3 hours each.
What is Kittitas County's reliability grade?
Kittitas County has a Reliability Grade of D, in the 31st national percentile.
What was the worst power outage in Kittitas County?
The worst outage on record started May 16, 2023, lasting 1 hours and affecting up to 10,749 customers.