Snow’s limit

Dear HIW, When it gets colder than snow and hail, what comes from the clouds? Sammy Glanfield Hi Sammy, thanks for the great question. Interestingly, it can never really be too cold to snow, as snow can form at incredibly low temperatures. However, it is possible for the air to be too dry for snow to fall. Sometimes when temperatures are really low, the air becomes too dry. While this can be a result of the colder weather, it’s the lack of humidity that is the cause, rather than the temperature itself. If there is little moisture in clouds during cold weather, they might begin to form snow crystals, but these flakes aren’t big enough to reach the ground. Instead they evaporate before they reach us.

As long as clouds can find a water source, it’s never too cold to make snow