I can easily believe that. I live in the cozy state of Minnesota, you know, we get that white stuff that falls and sometimes it is just too goddamn cold for it to fall
If you have been in actual cold, not "oh my its cold out, i better grab a sweatshirt" you know what happens when you breathe. Your nostrils stick together 8O
I have my windows open right now and I'm running ambient of 14C. I am hopefully getting a water kit in the next two weeks and should see some nice temps. My D805 usually idles 4C over ambient and loads about 14-17 over.
What kind of kit are you running? My 7800 GT CO idles at 35 even when my ambient is in the 23-24 area. (stock copper cooler, fan at 20%)