N.F.L. Sideline Heaters Can Be Hazardous - The New York Times
What is the coldest game in NFL history? Did the Bills vs Patriots break it?
NFL Week 17: Arctic blast brings frigid temperatures to Sunday's games
Not a record, but Bears-Packers' temp still frigid at 11 degrees - ESPN - Chicago Bears Blog- ESPN
Subzero wind chills expected for Bills vs. Patriots — but it won't come close to coldest game in NFL history
NFL: See the Coldest Games Ever Played
Coldest NFL games: Green Bay Packers' 15 chilliest games at Lambeau
Coldest games in NFL history
The Coldest Vikings Game Ever Played - Mpls.St.Paul Magazine
Green Bay Packers' Lambeau Field is coldest stadium in NFL
Seahawks set to play coldest game in franchise history
Frozen in time: 2022 Armed Forces Bowl one of coldest bowl games ever