Whenever the NFL calendar approaches December, the league's fans get excited. This excitement isn't just about the league's annual playoff push; it's also about watching their favorite teams play in cold-weather environments.
NFL teams have had to brave the elements since the league's earliest days. While the league occasionally postpones games due to blizzards or hurricanes, its teams tend to play through everything else.
That includes not only snow but also freezing temperatures.
Throwing, tackling and catching may not be easy when temperatures drop below freezing, but it becomes even more difficult the more frigid it gets.