Founded by Mongols in the time of Ghengis Kahn, the town of Oymyakon is the coldest permanently inhabited place on earth.
The village has a population of around 800 and is located 690 meters above sea level and lies in a valley between two mountain ranges (the reason for the low temperatures). The name Oymyakon means "non-freezing water" because of the natural hot spring close to the village.
The temperature this week is pretty low and the temperature tomorrow is a chilly -63C which based on the stats at Wikipedia equals the record low for December.