During summer months in the Northern Hemisphere, why does the sky often appear a more intense, deeper blue?

Answer

Sunlight takes a relatively shorter path through the atmosphere.

When the Sun is high overhead during summer, its light takes a shorter path through the atmosphere, meaning less blue light is scattered away from the direct beam before reaching the lower atmosphere, resulting in a deeper blue.

During summer months in the Northern Hemisphere, why does the sky often appear a more intense, deeper blue?

#Videos

And Why The Stars Change With The Seasons" 5 min. version

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