This normal temperature while running Prime95

[tw23]

Hey guys,
I just oc'ed like an hour ago to 4.4 GHz without any problems , and currently I'm running Prime95 and my temperature (average) is about like 52-57 degrees Celsius and my max is like 66 degrees Celsius.
Is that normal?

Thanks guys

 

[abekl]

That's at the upper end of normal for an overclock like that.