It was a very cold last day of 2013 in the city of Winnipeg, Canada.
It was minus 31 degrees Tuesday.
For the month, it was the second coldest December in the city in a century.
In terms of astonishing weather facts, it doesn't get much more impressive than being as cold as a distant planet for a day.
The Manitoba Museum is reporting Winnipeg's temperatures on Tuesday were actually as cold as the surface of Mars.
According to the Curiosity Rover, Mars reached a maximum temperature of -29 C on Tuesday, a temperature Winnipeg only reached shortly before 3 p.m.
The temperatures can be dangerous.
A downtown watch program has been keeping an eye out for people needing help getting to a shelter.
And since November, nearly 60 people have gone to Winnipeg ERs with injuries from the cold.
And water main breaks are causing huge headaches, especially as that water freezes.