Never!

Never ever put a hamster in the snow they will freeze to death right then and there. Never take them putside when it is even chilly outside or too warm! They need to be in a non direct sun light enviorment because they could get way to hot. As always Lily hates the light anyways she is always out at night. Right now i am trying to get her used to snow but the only way i could do this was to carefully bring a tad bit of snow in and put it on her nose. If a hamster is stating to bite you when you try to do this. STOP!