How can it be “too cold” to snow?

Question

How can it be “too cold” to snow?

In: Other

Answer 1

In order to snow there needs to be moisture in the air and if it’s too cold then water won’t really have much chance to evaporate or get into the air, even if it’s sublimating in direct sunlight. What little does get into the air will tend to condense at lower concentrations than at warmer temperatures. Thus you never have enough moisture to snow when it’s so cold outside.