Why does it hail in so many places this year?

Because: this year's hail disaster is due to the strong convective weather system in many places in China, which has caused hail disaster weather in many places this year.

Areas with the most hail in China:

Hail disaster is a serious meteorological disaster caused by strong convective weather system. Although it appears in a small range and in a short time, it is fierce and strong, and is often accompanied by sudden disastrous weather processes such as strong winds, heavy precipitation and sharp cooling.

Hail mainly occurs in mid-latitude continental areas, usually more in mountainous areas than in plains, and more in inland areas than in coastal areas. Hail in China mostly occurs in spring, summer and autumn, accounting for about 70% of the total from April to July. Severe hail disaster areas include southern Gansu, Longdong, the yinshan mountains, Taihang Mountain, western Sichuan and Yunnan Province.

The area with the most hail in China is the Qinghai-Tibet Plateau. For example, Naqu in northeastern Tibet hails for an average of 35.9 days a year (53 days in the maximum year and 23 days in the minimum). Followed by Bango 3 1.4 days (longest 48 days a year, minimum 22 days), Shenzha 28.0 days (longest 37 days a year), Amdo 27.9 days (longest 40 days a year) and Suoxian 27.6 days (longest 44 days a year), all of which appeared in the Qinghai-Tibet Plateau.