Kittitas County Power Outage History
2015–2025 · Washington
Worse than average — more frequent or longer outages than most counties. How grades are calculated
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 | 0 hrs | 8,531 (39%) | Unnamed event |
| Jan 9, 2024 | 14 hrs | 8,394 (38%) | Winter Storm |
| Dec 17, 2025 | 62 hrs | 6,665 (30%) | Unnamed event |
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).
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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 |
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.