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Sean Rooney carries his dog, Stella, for a few remaining blocks on his way home along the 16th St. Mall near Lawrence St. in frigid temperatures and light snow Feb. 12, 2021.

Terri Lorimer, left, and her husband, Bob, walk down the 16th St. Mall in frigid temperatures on their way to Union Station to catch the RTD A Line to Denver International airport for a flight to Phoenix, Arizona Feb. 12, 2021. Denver's temps were in single digits at the time, while Phoenix was looking at a balmy 65 degrees.

A man walks along the 16th St. Mall between Lawrence St. and Arapahoe St. on a very cold day in Denver Feb. 12, 2021.

A construction worker builds scaffolding at a project at 16th and Market in frigid temperatures and light snow Feb. 12, 2021.

A pedestrian walks along Larimer St. crossing the 16th St. Mall in frigid temperatures and light snow Feb. 12, 2021.

Sarah Cowman, 11, visiting from south Florida, slides down a hill on a plastic container lid at Commons Park in frigid temperatures and light snow Feb. 12, 2021.

G.L. Tyler of Denver crosses a snow covered Glenarm Pl. near the Denver Pavilions on Friday, Feb. 11, 2021.

A worker clears light snow off of a bridge over the South Platte river at Confluence Park in frigid temperatures Feb. 12, 2021.

A bicyclist rides on a bike path at Confluence Park in frigid temperatures and light snow Feb. 12, 2021.

A pedestrian crosses 15th St. near Confluence Park in frigid temperatures and light snow on Friday morning, Feb. 12, 2021.