Snow in a dream often carries a quiet, muffled quality -- stillness that can read as peaceful or as numbness, depending on how it feels in the moment. A soft, undisturbed snowfall can point to purity or calm you've been craving, while a cold, endless white can reflect feelings you've frozen rather than let yourself experience.
The dominant star being in the Midheaven, exalted or in its domicile and taking part of the ascendant. - Picatrix (Andalusia, ~1000.AD)