When does it hail the most?

Hail will appear in spring, summer and autumn, and it rains the most in summer. Hail is a strong convective weather, characterized by rapid evaporation of surface water. Strong convective weather generally occurs in summer when the temperature is high. In summer, there will be a summer monsoon blowing from the Pacific Ocean in China, which will form strong convective weather with the low pressure from Siberia.

The water vapor in the warm and humid air from the Pacific Ocean directly condenses into a solid state because of the sudden drop in temperature, and falls down to form hail. Hail mainly occurs in the mid-latitude continent, usually more in the north and less in the south, with more mountains and less plains, and more inland and coastal areas. This distribution is related to large-scale cold air activities and topography.

The formation of hail is a complicated process. Generally, when hail falls, it is often accompanied by thunderstorms. Hail is solid precipitation with a diameter greater than 5 mm falling from strong cumulonimbus clouds, which is spherical, conical and irregular in shape. Hail clouds are very high, much like towering mountains.

Hail is a kind of strong convective weather, and the main feature of "strong convective weather" is that the surface water evaporates quickly. In China, strong convective weather generally occurs in summer when the temperature is high, and there will be a summer monsoon blowing from the Pacific Ocean in summer. The low pressure from Siberia formed strong convective weather.