Why The Mountain Is Cold. This however does not account for cold air on a mountain top on a calm day so i m looking for a better explanation. If heat rises then why is it so cold at the top of a mountain.

Weather to top. More specifically a mass of air that is warmer than the air around it expands becomes less dense and will. The reason why it s colder the higher you go is because there is less atmosphere around you to contain energy heat.
Dear andrea you re right.
It is this lower pressure at higher altitudes that causes the temperature to be colder on top of a mountain than at sea level. The cold mountain effect explains what we mistake as perfectionism. And the air pressure is so low that the temperature falls to a lethally cold 55 c. If we took a trip into the mountains we would find that it felt a lot colder.