Why temperature decrease during winter?

Maybe Rio do Sul State of Brazil as well, all is only about 100 million get much of any climatic cold in (southern winter which is June-September). So we collectively think of winter as having a massive decrease, Why do the temperate areas chill? Surely there are other answers to this question on Quora. Ah Ha! read more

But this is not all. Once the solar heating is reduced, other phenomena come into play: radiative cooling; albedo feedback; Areas behind polar circle during the winter months receive very little heat from Sun and lose additional heat by longwave infrared radiation. read more

This chart is an illustration of temperatures profiles for a lake in Minnesota, USA (where it gets really cold during winter). You can see that in May the surface starts to warm (green color), but the warming only goes down to about 5 meters in depth. read more