In winter it's colder because it is further inland. In summer of course it's hotter than Sydney, again because it's further inland. Let's talk about land being hotter than sea in summer, then apply that same principle to winter cold. read more
Australia was a colony of UK. As with many countries that had been the colony of UK, Australia was separated in many states. So many cities wanted to become the capital. Especially, a competition between Sydney and Melbourne was heated. read more