I'm sure there is someone out there who can top this one but I walked to school when it was -46 C, wasen't that bad acctually. Once at school all classes were cancled, When I finally get back my father tells my that "maybe he should have let me stay home". On the other hand the hotest day in my hometown was 32 C (not so bad for a city just south of the arctic circle, http://sitemaker.umich.edu/section2_group1/background). That gives us a diffrence of 78 degrees between summer and winter