Why does the moon appear extra bright during winter at night

Is it because of the clear air, low humidity, or some other reason? I live near the tropics, if that makes any difference.

During warm nights, the warmer air is rising and creates a lot of movement in the lower troposphere. The different densities of air disperse the light, therefore the moon appears brighter and clearer on cold nights.

The same effect is responsible for why stars twinkle more on warm nights than cold nights, and also why distant objects on a hot day look wavy and distorted.

A cold area does hold less humidity, but it also holds less smog and polution. The stars in general are sharper in the cold winter months.

No, No No No No No No!! ... "It's only because, 'the man in the moon' gets colder in winter & he has to get all the heaters going!