About 80% of the snow at the 2014 Games in Sochi, Russia, was manufactured. When South Korea hosted in Pyeongchang four years later, that share rose to 90%. 100% of the snow used in these games is artificial.
These Olympic games will be using artificial snow because of the rarity of natural snow in this region. Over the past four decades, average winter precipitation was only 7.9 millimeters in the arid Beijing-Zhangjiakou region which does not make it ideal for natural or manufactured snow.