I reapplied thermal paste on my CPU (Pentium g2010). About a month after application, I started monitoring the CPU temp. and I noted it is mostly 47°C after several hours (3-4hrs)of gaming. I usually play Crysis 3 and Battlefield 4. Please is that temp. Ideal. I'm new to stuffs about CPU cooling
Depending on SW used to check temp, most have Minimum and maximum temperature reading. Let it run at same time you run game and Tab out of game or press Win key to see temperatures. https://www.hwinfo.com/ is very good one and can even show you the graph to see how temps were changing.