May. At the beginning of May every year, when the sun reaches 45 degrees of yellow longitude also comes to our summer festival. Therefore, according to the sun's autobiographical cycle, every year on May 5 or 6, 7, at this time the bucket refers to the south-east, the dimension of the summer, all things grow up to this point, so the name of the summer also. As the name suggests, it is the beginning of summer. At the beginning of summer, the Doo points to the southeast. The sun's yellow longitude is 45°. After the beginning of summer, it is the beginning of summer. At this time of the year, everything is full of vitality, the temperature rises significantly, the heat is approaching, thunderstorms increase, and crops enter the peak season of the year. The beginning of summer is the beginning of summer. China's land area is vast, so the summer season is different in different parts of the cold and warm, the time of summer is actually not consistent. Before and after the summer, usually the southern part of the Sichuan Basin has just crossed into summer, while the rest of the temperature is about 20 ℃. Southwest Sichuan low-altitude valleys as early as the beginning of mid-April that feel the summer heat, most of the temperature has reached more than 24 ℃.