Considering the Core temp max for that CPU is 72C, that isn't out of line. Maybe set your fan control in BIOS to spin up sooner on high temp if those temps aren't suitable for you. Or check the mounting to be sure the cooler is correct.
3rd Generation 22 Nanometer: 3570K / 3770K (TDP 77W / Idle 4W)
Standard Ambient = 22C
Tcase (CPU temp) = 67C
CPU / Core offset + 5C
Tjunction (Core temp) = 72C
Tj Max (Throttle temp) = 105C
(From: http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html)