Aurora in Anchorage on December 21, 2025

December 21, 2025

Anchorage change region

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Probability of aurora in Anchorage

Probability of aurora as of end of day, December 21, 2025, Anchorage time

19 % Anchorage

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of December 21, 2025, Anchorage time

Aurora over North America

Changes in the auroral oval on December 21, 2025 in United States from the beginning to the end of the day, Coordinated Universal Time (UTC)

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Aurora in the northern hemisphere

Changes in the auroral oval on December 21, 2025 in the northern hemisphere from the beginning to the end of the day, Coordinated Universal Time (UTC)

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Probability of aurora in cities of United States

Estimated probabilities of aurora observations at zenith for cities in United States as of end of day December 21, 2025.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

1 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

4 % Bismarck

0 % Olympia

2 % Helena

2 % Saint Paul

41 % Fairbanks

19 % Anchorage

23 % Juneau

10 % Hooper Bay

21 % Nome

33 % Kotzebue

35 % Utqiagvik

9 % Bethel

24 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from December 20 to 21, 2025 in the northern hemisphere, Anchorage time

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