1. The rainfall is gradually increasing and relatively concentrated.

It's getting hotter and hotter, but it hasn't reached its peak yet.

3. Frontal thunderstorms occur because the middle and lower reaches of the Yangtze River are often controlled by subtropical high.

The customs of summer solar terms are as follows:

1. Food novelty: In the summer solar term, there is a folk custom of "food novelty". People grind newly beaten rice and wheat into powder, make all kinds of cakes and noodles, and share them with their neighbors to express their wishes for a bumper harvest. At the same time, these foods should also be prepared as sacrifices for ancestors, and please bless the good weather.

2. Eat Summer Sheep: During the summer solar term, southern Shandong and northern Jiangsu will eat a traditional food called Summer Sheep. This custom can be traced back to the Yao and Shun period, and there is a saying among local people that "Pengcheng helps sheep with a bowl of soup without a doctor prescribing it".

3. Drying clothes, painting and calligraphy: On the sixth day of the sixth lunar month, people have the custom of drying paintings and calligraphy and drying clothes. It is said that this day after drying in the sun, you can avoid being eaten by insects, so there is a saying that "on June 6th, the sun turned red and green".