Is Sydney colder than Siberia?

Remember last winter when that polar vortex thing hit and suddenly it was like 4 degrees in the Sydney CBD at 11am? Freaky. Well, the cab driver I had that day was from Russia and he said he’s never been colder in his life than since he moved to Sydney. “In Russia,” he told me, as I enjoyed a shot of vodka in the back seat (ha, ha), “when you shut the front door, it’s shut. In Sydney, you shut the front door and a wind keeps blowing through it.” Da to that, brother!