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Temperatures fell below freezing at about 5 p.m. on Sunday and are expected to stay there until around 11 a.m. Friday, putting Denver on track to see nearly 115 hours of frigid temperatures.

This means the city was below freezing for 91 straight hours. The below-freezing pattern went hand-in-hand with sub-zero wind chills, Bianchi said. But the cold won't leave Colorado just yet.