Traditional Culture Encyclopedia - Weather forecast - Why did it come so late this summer and it was not hot at the end of May?

Why did it come so late this summer and it was not hot at the end of May?

This year is an extra leap month, which means an extra April. In that case, the current weather is still the temperature in April. So it's not very hot now. If there is no leap month in previous years, it will be hot when it is close to June 1 day. Therefore, the climate is related to this leap month.