You should check your temps according of what you do with your computer, I mean, I use to edit a lot of video and rendering the footage can be CPU-demanding. also gaming, or anything that can put some stress on your system.
If you see the temperatures when doing heavy-work on your pc, you may want to upgrade to a better fan cooler. (just to keep the cpu cooler and extend its life)
Intel's cpus are very tough, you can not upgrade if you want, in my case I want it because I really like to feel my system working smooth under a lot of stress. I used to have a h100i system but it just broke or something (temps where similar using a stock cooler) so I moved to a noctua cooler, is amazing how a fan cooler can match the h100i system.