My home city, notorious for its severe winters, feels like an occasionally chilly summer with a bit of snow this winter

2 years ago, I remember having a winter where it reached -40C a few times throughout a 2 week period, even hitting -50 on one day. It used to get to -25 as early as late October, and now it's December and you can go outside with just a hoodie. Every day this winter has been very sunny, almost as sunny as the summer.