What month is the sandstorm in Yinchuan?

March to May. Official website, Yinchuan Municipal People's Government, shows that more than 70% of dusty weather occurs from March to May, and spring is the season with frequent dusty weather. Yinchuan, referred to as "Yin" for short, is the capital of Ningxia Hui Autonomous Region and an important central city in northwest China approved by the State Council.