Is it proven that the sky gets brighter in the spring?

The perception that the sky gets brighter in spring is largely influenced by several factors, including changes in weather patterns and the angle of sunlight as the days lengthen. Spring often brings clearer skies and more sunlight, which can create a brighter appearance. However, there is no definitive scientific proof that the sky itself becomes inherently brighter in spring; it is more about environmental conditions and seasonal changes affecting our perception.