Many of the hottest cities in the world are located in the Middle East. One perfect example is Ahvaz, located in Iran. Even though information from Iran is relatively limited, it is obvious that this city is incredibly hot. The average high in this city is 116 degrees F, and the record high in this city is 129 degrees F. The summer is incredibly brutal, even though this city has four distinct seasons. There are heat waves and dust storms that can cause people to shelter inside for an extended amount of time. It also does not get a lot of rain, which means that clouds are relatively unusual. Even though the record high was set back in 1967, the city has been creeping gradually closer to this point.
It should come as no surprise that the hottest cities in the United States are located in the desert Southwest. The hottest city in the United States is Yuma, Arizona. Arizona is a state that is known for its brutal summers, and people did not live in Arizona very often until air conditioning was invented. Even now, with modern air conditioning, the summer in Arizona can be impressive. In Yuma, the average high during the summer is 107 degrees. The record high is 124 degrees F. While the heat is dry, it is still absolutely oppressive. The city only receives approximately 10 inches of rain every year, making it one of the driest climates on Earth.
Even though Yuma is the hottest city in the United States, it is not the hottest region of the United States. That title goes to Death Valley. Death Valley has an average high during the summer of 120 degrees F. It also has a record high of 134 degrees F. There are not a lot of people who live in this area because of how hot it can yet, but it is still a unique region in the United States. Even though there are a lot of people who enjoy visiting this area, it would be very difficult to live here. It is several hundred feet below sea level, and it is walled up by tall mountains.