KNQA: Millington Municipal Airport, TN, United States [54.9°C, 130.8°F], Aug. 3, '10
For weather nuts... I noticed that at one point, Millington, TN was the hottest place on Earth as measured by Heat Index. Heat Index is the measure of dewpoint (absolute humidity) and temperature, resulting in 'apparent temperature' or 'how hot it feels.' At the time on Aug. 3rd, Millington was reporting a temperature of 105ºF and a dewpoint of 80º. This (with fractions) resulted in a heat index of 130.8. Note that Millington was far from the highest temperature, but desert locations can often have a heat index lower than their actual air temperature. The usual places that have the highest heat indexes like Africa and the Middle East were dark (night time) at the time of Millington's report.
Find weather extremes like dewpoint and heat index at coolwx.com. (Some of the extreme readings displayed are occasionally due to malfuctioning sensors ... i.e. today's Crocket, TX 100º dewpoint and 198ºF heat index - obviously false readings). The Millington reading was in the ballpark within readings from the region at that time, so I think it was authentic.
Personally, I love hot weather. Today, there was a heat advisory in effect for TN. I was outside all day, playing guitar in the shade, by a fan, with occasional pool breaks. It was 95ºF here today with heat index well over 105º.