Aurora in Denver on October 31, 2025

October 31, 2025

Denver change region

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Probability of aurora in Denver

Probability of aurora as of end of day, October 31, 2025, Denver time

0 % Denver

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of October 31, 2025, Denver time

Aurora over North America

Changes in the auroral oval on October 31, 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 October 31, 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 October 31, 2025.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

1 % Seattle

0 % Detroit

0 % Portland

0 % Boston

1 % Madison

4 % Bismarck

1 % Olympia

2 % Helena

2 % Saint Paul

28 % Fairbanks

11 % Anchorage

15 % Juneau

5 % Hooper Bay

11 % Nome

20 % Kotzebue

29 % Utqiagvik

5 % Bethel

14 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from October 30 to 31, 2025 in the northern hemisphere, Denver time

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