There were a lot of snowing during the winter in Colgate. After we learning the changing of phases. I wondered that how does it happened on the snow in our campus.
What interesting is that most of the snow in the campus does not turn into water because I did not see a lot of water in the campus. I think most of them direct turn in to steam which is sublimation. After checking some materials, I know that the latent heat of snow at 0 degree is 2823kJ/Kg.
So every time after a big snow, the temperature is usually low for a long time because the snow need to absorb a large amount of heat in order to sublimate and will keep the temperature low until the snow roughly all turned into steam.