Reason for one rotor being hotter then other?

[sasha055]

Hi,
For the last couple of months I'm trying to get rid of vibration on my car (2000 Base 72K miles).

I changed brakes/rotors, rear wheel bearings, balanced and aligned the wheels.. and Yet at 50+ mph it shakes me like a british nanny

Yesterday I decided to check temperature on rear boots to see if bearings heat evenly.. and to my surprize temp on left rotor was 110 deg and on right rotor 95deg

Is it normal or something is going on?

It feels like vibration is coming from rear left.. it's feels like lug nuts are touching parking brake or something is touching something there I just cann't figure out what..

Thanks
Sasha