Perception of Cold

So I think living here has completely changed my perception of cold. Of course when it first started to get into the 40's and 50's I was freezing. I also didn't have my coat yet either. Then I got my coat. Its all good. It was between 10-20 for about 2 weeks. Then the last few days has been above or at freezing. All the sudden I find myself saying how warm it is. Then I think well its just above freezing, I can wear a skirt today! I'm not sure what is happening to me but I think I'm becoming acclamated. But there is rumor it will be a -40 kind of winter. So we'll see what kind of song I'm singing then!