<P> Yuma is located near the borders of California to the west and Mexico to the south, and just west of the Gila River's confluence with the Colorado . The city is approximately 60 miles from the Gulf of California (Sea of Cortez), a branch of the Pacific . </P> <P> According to the United States Census Bureau, the city has a total area of 106.7 square miles (276 km), of which 106.6 square miles (276 km) is land and 0.1 square miles (0.26 km) (0.07%) is water . </P> <P> Yuma is noted for its weather extremes . Of any populated place in the contiguous United States, Yuma is the driest, the sunniest, and the least humid, has the lowest frequency of precipitation and has the highest number of days per year--175--with a daily maximum temperature of 90 ° F (32 ° C) or higher . </P> <P> Yuma features a hot desert climate (Köppen climate classification BWh), with extremely hot summers and warm winters . Atmospheric humidity is usually very low except during what are called "Gulf surges", when a maritime tropical air mass from the Gulf of California is drawn northward, usually in connection with the summer monsoon or the passage of a tropical storm to the south . </P>

Is yuma the hottest city in the us
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