What is the weather in April in the middle and lower reaches of the Yangtze River? How to solve geographical problems?

The annual average temperature in the middle and lower reaches of the Yangtze River14 ~18℃; 1 Monthly average temperature 0 ~ 5.5℃; The average temperature in July is 27 ~ 28℃, and the absolute maximum temperature can reach above 38℃. The annual precipitation 1000 ~ 1500mm is evenly distributed in seasons, but there is a "summer drought". The frost-free period is 2 10 ~ 270 days, and the active accumulated temperature above 10℃ reaches 4500 ~ 5000℃. This area belongs to subtropical monsoon climate, with mild winter and little rain, and high temperature and rainy summer. There is more precipitation in spring and summer. From June to July every year, affected by the summer monsoon and the cold air in the north, "Meiyu" is formed, which lasts for a long time. The length of rainy season is greatly influenced by "quasi-static stop before Jianghuai". After the rainy season, due to the influence of the western Pacific subtropical high, typhoon activity decreased, forming a "summer drought".