On Tuesday, January 31st, 2012, at 11:50:07h +0000, David Looser wrote:

0 - 10: cold

It is not really cold until the temperature is below -10 degrees Celcius.

The important thing to consider though is the presence of any wind,
resulting in a wind chill effect, and the humidity.

Very humid conditions at 0 degrees C or so usually feels far worse
than say -10 degrees C when it is crisp and dry.