Alaska Power Outage Season
When outages happen most in Alaska, and what to expect.
December is historically Alaska's busiest month for recorded power outages, part of a summer season (June–August) that accounts for about 31% of all recorded outages statewide, averaging 3.1 hours per event. 1 of Alaska's 9 tracked counties currently carry a Reliability Grade of F.
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Alaska outages by month
Total recorded events and average duration per event, summed across every tracked county in Alaska.
Peak season insight
Alaska's outage season runs June–August, accounting for 31% of all recorded outages. December has the highest frequency.
Month-by-month data table
| Month | Events | Avg duration |
|---|---|---|
| January | 318 | 3.6 hrs |
| February | 260 | 2.2 hrs |
| March | 213 | 2.8 hrs |
| April | 204 | 3.0 hrs |
| May | 281 | 2.3 hrs |
| June | 377 | 3.0 hrs |
| July | 423 | 4.6 hrs |
| August | 446 | 2.7 hrs |
| September | 334 | 3.0 hrs |
| October | 396 | 2.9 hrs |
| November | 307 | 3.0 hrs |
| December | 502 | 3.6 hrs |
This month in Alaska
October has historically recorded 396 outage events across Alaska, above the state's typical monthly average. Outages that start in October have averaged 2.9 hours.
Main causes by season
Named storms behind Alaska's worst recorded outages, from the NOAA Storm Events Database.
Winter (December–February)
- Winter Storm
Alaska's worst outage events on record
The five largest outages in Alaska by duration and customers affected.
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 26, 2022 | 76 hrs | 27,643 (62%) | Unnamed event |
| Jan 12, 2025 | 68 hrs | 29,805 (27%) | Unnamed event |
| May 14, 2023 | 12 hrs | 66,516 (60%) | Unnamed event |
| Sep 1, 2023 | 12 hrs | 64,266 (58%) | Unnamed event |
| Oct 31, 2025 | 18 hrs | 15,029 (34%) | Unnamed event |
Highest-risk counties in Alaska
Lowest reliability percentile among Alaska's tracked counties.
| County | Grade | National percentile |
|---|---|---|
| Denali | F | 14th |
| Southeast Fairbanks | D | 23rd |
| Matanuska-Susitna | D | 23rd |
| Kenai Peninsula | D | 27th |
| Fairbanks North Star | D | 33rd |
Live weather alerts for Alaska
Special Weather Statement
Special Weather Statement issued October 1 at 6:08AM AKDT by NWS Juneau AK
Read the official NWS alert →Winter Weather Advisory
Winter Weather Advisory issued October 1 at 5:03AM AKDT until October 1 at 10:00PM AKDT by NWS Fairbanks AK
Read the official NWS alert →Wind Advisory
Wind Advisory issued September 30 at 11:43PM AKDT until October 1 at 1:00PM AKDT by NWS Juneau AK
Read the official NWS alert →Dense Fog Advisory
Dense Fog Advisory issued September 30 at 10:44PM AKDT until October 1 at 10:00AM AKDT by NWS Anchorage AK
Read the official NWS alert →Special Weather Statement
Special Weather Statement issued September 30 at 7:58PM AKDT by NWS Fairbanks AK
Read the official NWS alert →These live alerts come from the National Weather Service. They are public-safety information, not an outage prediction.
Alaska power outage FAQ
When do power outages happen most in Alaska?
December is historically the busiest single month for recorded outages in Alaska, and Summer (June–August) accounts for about 31% of all recorded outages across the state.
How long do power outages in Alaska typically last?
Across Alaska's tracked counties, the average recorded outage lasts about 3.1 hours, though individual events -- especially named storms -- can run much longer.
Which counties in Alaska have the highest outage risk?
Denali, Southeast Fairbanks, Matanuska-Susitna, Kenai Peninsula, Fairbanks North Star currently rank lowest for reliability in Alaska. See each county's page for its full history.
Does this page predict a power outage in Alaska?
No. It describes patterns in recorded county-level outage history, not a guaranteed future event. Check the live National Weather Service alerts below for current conditions.
Prepare for Alaska's outage season
Sized for Alaska's recorded outage frequency and duration.
