降雨量

yuè jiàng yǔ liàng

月降雨量

monthful rainfall

chí xù de gāo jiàng yǔ liàng

持续的高降雨量

persistently high rainfall

gāi dì qū de nián jiàng yǔ liàng bù dào sān lí mǐ

该地区的年降雨量不到三厘米。

The annual rainfall in this area is less than 3cm.