Temperatures are dropping, but the intensity on the gridiron is heating up.

With the final stretch of the NFL season approaching, teams will have to battle the elements along with their opponents.

While many teams have the comforts of warm weather or roofed stadiums, others have to brace for Mother Nature when it comes to late-season competition.

The Chicago Bears and Cleveland Browns are both accustomed to chilly temperatures and blustering winds, but even by their standards, they will face a daunting forecast in Week 15. NBC Chicago predicts the game-time temperature in the single digits with possible wind chills 10-to-15 degrees below zero on Sunday in the Windy City.

How does that compare to the coldest games in NFL history? Let's look back at the five games with the most fri

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