Why Does It Get Colder as You Go Higher?
Covering the earth is a deep ocean of air. It holds the sun’s heat and warms the earth’s surface. The higher up you go in the atmosphere, the thinner the air becomes.
This thin air cannot hold as much heat as the air at lower elevations and therefore, is usually much cooler, so the temperature drops.
For each one thousand feet (300 meters) you go up, the temperature goes down between three and four degrees Fahrenheit.
Snow is often present on very high mountaintops during the summer. This is because the temperature never gets warm enough for all the snow to melt.