Why winter in the northern hemisphere is much colder and snowier than winter in the southern hemisphere?

Question

To clarify, I’m asking why when it is winter IN the southern hemisphere, why is it milder than winters in the northern.

Not asking why are the seasons reversed.

In: 2765

Answer 1

One other reason not mentioned is that Earths orbit is not circular, it’s elliptical. Precession will eventually change this but it will take centuries.

The Earth is at perihelion around 3 January and at aphelion around 3 July. The heat retained in the southern hemisphere oceans makes the average temperature of the Earth a few degrees higher in July when Earth is furthest from the Sun than it is in January when it is its closest.