I use this to monitor my temps...
Yeah, something doesn't seem right. I'm idling at 37' C right now at 3:14 p.m. and this room (on s.w. corner of house) is a bit warm even. I was wondering last night how people have the fan on the HSF blowing? Mine is blowing away from the HS to lift the heat up away from the cpu. Anyways, try that prog above and see what it says. It should give you temps for both cores.