With the very hot temperatures we have had lately, my temp gauge is going between O-R and back again. Especially if I drive it and then sit and then drive again.
The electric fan comes on around the 'O' mark. Today, it never got above the 'O' driving around town with the a/c on.
Unfortunately, I haven't paid much attention to the temperature over the years (until now that my water pump blew up last week.) So I don't know what is normal. I seem to remember it on the 'N' most of the time with sometimes hitting the 'R' after driving up and down hills.
I also remember the radiator fan was often on when I got home, so obviously the gauge would have been up to the 'O' at that point.
Does that help?
