When did Ma 'anshan start wearing T-shirts?

Maanshan belongs to the south of Huaihe River and the south of Yangtze River. It belongs to the land of fish and rice in the south of the Yangtze River. Compared with the weather in the north, it is relatively warm. At the same time, winter and summer are longer, spring and autumn are shorter, and summer is particularly hot. Generally, you can wear T-shirts in April and May, but it also depends on the weather changes.