-9C here and I didn't wear my coat today. Naturally it's unsurprising that relative perspectives vary. I'm just always fascinated by how other people experience existence. For me really cold and really hot is -30 and +30. I'm going to bet there's a billion or so people who would laugh at the idea of +30 being "really hot".
1 - https://en.wikipedia.org/wiki/Mount_Hermon#Climate