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).
Parker Liautaud
By the age of 17, Liautaud had undertaken three expeditions to the North Pole. At 19 years old, he led the Willis Resilience Expedition to the South Pole, a two-part Antarctic journey with Willis Group that included a 1900 km crossing of Antarctica to conduct climate change research, followed by a 560 km trek from the edge of Antarctica to the South Pole. On December 24, 2013, Liautaud and fellow explorer Doug Stoup completed the expedition, setting a new record for the fastest human-powered trek from the coast of Antarctica to the South Pole. Liautaud became the youngest man to trek to the South Pole at the time.