How does the air quality in autumn typically affect the visible blue of the daytime sky compared to summer?

Answer

The air cleanses itself of summer particulates, allowing the scattering of light to become more efficient for the blue wavelengths.

Autumn is a transitional period where decreasing temperatures and lessened humidity clear away biological debris, resulting in cleaner air that produces very vivid and efficient blue scattering during the day.

How does the air quality in autumn typically affect the visible blue of the daytime sky compared to summer?

#Videos

Why does the sky look bluer in the fall? | NBC4 Washington - YouTube

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