South Pole
In midsummer, as the sun reaches its maximum elevation of about 23.5 degrees, high temperatures at the South Pole in January average at . As the six-month "day" wears on and the sun gets lower, temperatures drop as well: they reach around sunset (late March) and sunrise (late September). In midwinter, the average temperature remains steady at around . The highest temperature ever recorded at the Amundsen–Scott South Pole Station was on Christmas Day, 2011, and the lowest was on June 23, 1982 (for comparison, the lowest temperature directly recorded anywhere on earth was at Vostok Station on July 21, 1983, though was measured indirectly by satellite in East Antarctica between Dome A and Dome F in August 2010). Mean annual temperature at the South Pole is -49.3 °C (-56.7 °F).
Amundsen–Scott South Pole Station
The Amundsen–Scott South Pole Scientific Station is the southernmost habitation on Earth. It is continuously inhabited. Its name honors Roald Amundsen, whose Norwegian expedition reached the Geographic South Pole in December 1911, and Robert F. Scott, whose British expedition of five men reached the South Pole about one month later (in January 1912) in a race to become the first person ever to reach the South Pole. All of Scott's expedition perished during the journey back towards the coast, while all of Amundsen's expedition returned safely to their base on the seacoast of the continent.