Aurora in San Francisco on December 22, 2025

December 22, 2025

San Francisco change region

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Probability of aurora in San Francisco

Probability of aurora as of end of day, December 22, 2025, San Francisco time

0 % San Francisco

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of December 22, 2025, San Francisco time

Aurora over North America

Changes in the auroral oval on December 22, 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 22, 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 22, 2025.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

1 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

3 % Bismarck

0 % Olympia

1 % Helena

1 % Saint Paul

32 % Fairbanks

14 % Anchorage

18 % Juneau

7 % Hooper Bay

16 % Nome

25 % Kotzebue

29 % Utqiagvik

6 % Bethel

18 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from December 21 to 22, 2025 in the northern hemisphere, San Francisco time

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