The problem here is the correct value of Tj,max for this CPU. Some Intel sources say 100 C and some other 80 C.
HWiNFO32 uses 80 C in this case which then results in such low values. To fix this, right-click on that sensor reading and choose "Adjust Tj,max" where you should enter 100.
I also suggest to check this post for additional details: <!-- l --><a class="postlink-local" href="http://www.hwinfo.com/forum/viewtopic.php?f=7&t=97">viewtopic.php?f=7&t=97</a><!-- l -->