What month is the flood season of the Yellow River?

April-September is the flood season in Jiangnan area, and May-June is the main flood season. The Pearl River is flooded from mid-April to September every year, with April to June as the first flood season, July to September as the second flood season, and May to June as the main flood season. The Yangtze River is in flood season from May to1mid-October, with the main flood season from July to August. The Huaihe River is in flood season from June to September, and the main flood season is from July to August. The Yellow River is in flood season from July to 10, and July to August is the main flood season. Haihe River is in flood season from July to August, and the main flood season is from late July to early August. Songhua River is in flood season from July to September, and the main flood season is from late August to early September.

The floods in rivers and lakes are obviously concentrated in one year, which is easy to form a period of frequent floods. Due to the different geographical location and flood season, the length and time sequence of flood season are also different.

The period of the year when the river rises regularly and significantly. Rainfall or melting snow in the basin will cause the river to rise sharply. In spring, the climate gets warmer, seasonal snow melts, river ice melts or spring rain causes the river to rise, which is called spring flood. Because peach blossoms are in full bloom, it is also called peach blossom season (or peach blossom season). In northern China, the phenomenon that the water level rises due to the melting of river ice in spring is called ice flood. There are ice floods in the Ningmeng section of the Yellow River, the estuary section of Shandong and the lower reaches of Songhua River, which flow from south to north. In summer, the torrential rain in the basin or the melting of snow in alpine glaciers make the river rise sharply, which is called summer flood. In our country, it is customary to call the floods around the dog days in summer as the flood season. In autumn, due to heavy rain, the river surges, which is called autumn flood season.

Flood season is a water conservancy term, which refers to the period when the river flows regularly and significantly in a year. "Flood season" is the appearance of abundant water, and "flood season" is the period when rivers are full of water. Flood season does not mean flood, and floods are generally in flood season.

All the year round, the summer monsoon will join hands with the subtropical high, bringing large-scale precipitation to China, and rivers will enter the flood season with the largest amount of water. From the beginning of April every year, with the first northward shift of subtropical high, summer monsoon brings rain after rain to South China and enters the pre-flood season.