Does sound travel better at night?

Ok I know I can't be the only one that knows this but, at night there is more moisture in the air due to less heat. More moisture means more density in the air, more density means more sound transferance. That is why you can hear traffic at night at much farther distances, voices, and dogs barking.

Sorry ibehere, but although the relative humidity might go up when the air gets colder, that does not mean that there is more moisture in the air, just that the air is colder containing the same amount of moisture as before. Its dew point remains the same.
One can hear voices or dogs better at night because there is usually less background noise to drown out those quiter sounds. Nothing to do with moisture in the air.
Bob P.

No,No,it's definetly the light.Make sure you have all lights of in the house,and I have found it makes much difference with the curtains closed. I left one open once and could not understand why the sound had not improved that evening,then I noticed a window blind was left open and emitting a small amount of light from the moon I think. I closed the blind and immediately the sonics changed. Now I have come to believe the moonlight is much better than say streetlight,but I much prefer no light at all. But it's all in the light man!

Especially if one is playing the 'Moonlight Sonata'!

Only if your Clever lil Clock is set to "PM" not "AM" in which case it will sound better in the morning.