Aurora in Philadelphia on April 20, 2025

April 20, 2025

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Probability of aurora in Philadelphia

Probability of aurora as of end of day, April 20, 2025, Philadelphia time

0 % Philadelphia

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of April 20, 2025, Philadelphia time

Aurora over North America

Changes in the auroral oval on April 20, 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 April 20, 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 April 20, 2025.

0 % Washington

0 % New York

1 % Chicago

0 % Philadelphia

1 % Seattle

1 % Detroit

0 % Portland

0 % Boston

1 % Madison

3 % Bismarck

0 % Olympia

2 % Helena

2 % Saint Paul

10 % Fairbanks

4 % Anchorage

6 % Juneau

2 % Hooper Bay

3 % Nome

6 % Kotzebue

14 % Utqiagvik

2 % Bethel

5 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from April 19 to 20, 2025 in the northern hemisphere, Philadelphia time

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