5. United Arab Emirates – 78 mm/year
The UAE coastal area gets less than 120 mm of rainfall annually, and most of the country is… well, you surely know by now – a hot desert. The coastal region gets violent dust storms from time to time and during July and August average maximum temperatures are above 113 °F (45 °C). To complete the harsh weather conditions, there is a humid southeastern wind during the late summer months.
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