For those running in the cold, look up "neck gators" or balaclavas. Good ones are made from synthetic material that doesn't absorb much moisture, but does help. Most people should be able to run down into the low 20s with a balaclava and good jacket, gloves and tights.
You do get more used to it. Just try breathing through your nose as much as possible and blow snot as it builds up. Gross yes, but it does work.
You do get more used to it. Just try breathing through your nose as much as possible and blow snot as it builds up. Gross yes, but it does work.