I heard someone in the next cubicle (no, not the Pwincess Pwecious) saying that her aunt caught a cold “because it’s been so cold out lately.” I offered the opinion that you catch colds from germs, and that the temperature has nothing to do with it. She countered that “if your body is working hard trying to keep warm, it makes you more susceptible to colds.”
Hmmmm?
Nope. Extended periods in the cold may lower your resistance to whatever virus is going around, but its a pretty minor factor. In fact in the high arctic colds are very rare as the virus that causes it tends to die in the frigid air before contating someone else.
Hrdygrdymn, do you by any chance work for the Nova Scotia Chamber of Commerce? 
Nah, he just reads The Straight Dope.
Even though it may have been proved a million times that cold weather does not cause people to catch the cold, I know that I feel cold symptoms more often (or at least to a greater degree) after cold weather (or when staying at someone’s house who doesn’t believe in heating their home). Too bad science doesn’t agree with my (perhaps anecdotal) experience.
In some people, cold air is a trigger for vasomotor rhinitis The symptoms; runny, pluggy nose, greatly resemble those of a severe cold.