10. DenaliMount McKinley, Alaska - The coldest mountain on Earth is Denali in Alaska previously known as Mount McKinley. Its summit, which is in the Alaskan Range of Denali National Park, is an incredible 20,310 feet above sea level. Even in the summer, this chilly mountain can register temperatures as low as 22.9 °F 30.5 °C or 59.2 °F 50.7 °C with the windchill. On December 1, 2013, the peaks weather station recorded a temperature of 75.5 °F 59.7 °C.