With winter settling in, December's full moon and the last full moon of the years is called the cold moon.

A plane crossing in front of the last full moon of the year is seen from Jinamar, in Gran Canaria, Spain, Dec. 19, 2021.

A woman takes pictures with her cellphone while the moon rises in the background as night falls in Lisbon, Portugal, Dec. 18, 2021.

The cold moon is seen from New York, U.S., Dec. 19, 2021.

The full moon rises up above a sea of fog, as seen from the television tower Bern-Bantiger in Bolligen, Canton Berne, Switzerland, Dec. 19, 2021.

A child climbs a toboggan hill after dusk as the cold moon rises in the Scarborough borough of Toronto, Ontario, Canada, Dec. 19, 2021.

This photograph taken on Dec. 19, 2021, shows the full moon through clouds over Moscow.

The moon is seen over a snow-covered mountain from Lamar Valley, Yellowstone National Park, Wyoming, U.S., Dec. 17, 2021.

The full moon sets behind trees near the Lebanese presidential palace in Baabda east of Beirut, Lebanon, Dec. 19, 2021.

The moon is pictured over the Dolomites from the Gardena pass, Italy, Dec. 18, 2021.

A bird is seen in front of the rising cold moon in Rieti, Italy, Dec. 17, 2021.

A full moon glows through tree branches and behind clouds, in Hokkaido, Japan, Dec. 19, 2021.

The cold moon rises at sunset behind Monte Prena mountain in Gran Sasso National Park in Italy, Dec. 19, 2021.

The moon rises at Centenario Stadium in Montevideo, Uruguay, Dec. 17, 2021.

Grassland burns as the moon rises in the distance, near Hays, Kan, Dec. 16, 2021.