Yuma is an American city located in the east of Arizona. It is known as the hottest city in the United States, the highest recorded temperature in this city was 51 degrees Celsius. The surroundings of Yuma are also considered the sunniest place on earth, as noted in the Guinness Book of Records – the sun shines here on average for 90% of the time during the year. Due to the almost complete lack of cloudiness, there are training centers for pilots and enthusiasts of paragliding or skydiving, who can be sure of excellent weather conditions in Yuma.