Traditional Culture Encyclopedia - Weather inquiry - Why do lakes on the south bank of Huaihe River freeze in winter?

Why do lakes on the south bank of Huaihe River freeze in winter?

The condition that water freezes is that the temperature is below zero, even in the south, it is below zero in winter, so this is normal.

The problem of climate is not absolute, but it is likely to be within the scope of subtropical monsoon humid climate. Because of our familiar weather forecast, there is always a gap with the actual situation.