Core i7 Temps Horrifyingly High (75-90 Degrees Idle)

Hello,
Newb here, but I figured I would approach Tom's Hardware as this seems to be a solid hive of information regarding computer hardware.

I recently built my first tower this past Winter, and have been loving it to death; the experience was like nothing else as a tech enthusiast and I now have one lean, mean, computing machine at my disposal.

Recently, I installed the program "Speccy" from Piriform, and checked on how my components were holding over time (this was about six months from when I had first built the PC). Everything seemed to be there, but something immediately startled me; the temps for my CPU (an Intel Core i7-950) seemed extremely high! Just browsing a simple webpage in Chrome yielded temps of around 75-85 degrees C, occasionally breaking into the 90's. I was shocked by this, but then occasionally it would slip back down to 55-60, which befuddled me further.

My first assumption, of course, was that the fans were to blame and that one or two of them must not be running. Upon inspection, however, all of them appeared to be running.

What could be causing this? Could it be a software issue, like a virus that crept onto my computer? Or is there just another problem here altogether?

Thanks, and I can provide more information if you would like upon request.

Scott