MacBook Pro (mid 2012) reaches quite high temperatures. Is this normal?

I'm currently using a mid 2012 Macbook Pro with the 15" high resolution screen add-on (it's the model that was released alongside the new retina versions). The processor is a 2.6 GHz Intel Core i7.
I've seen a lot of claims about MacBooks running at high temperatures, but I've hardly seen numbers as high as mine. I've had my MacBook reach 100 °C (212 °F) up to 105 °C (221 °F) in some situations (such as when compiling software). I've seen 105 °C being reported as a critical temperature at which the system might decide to shut down to protect itself, so I'm worried that this might be an unnatural temperature and that it might be affecting the lifespan of my PC.
I've also experienced cases where, while being on charge but idle (or running non-intensive tasks such as text editing or watching non-HD videos), the PC would at some point begin spinning the fans to very high speeds and reaching temperatures between 85 °C (185 °F) and 95 °C (203 °F). The aluminum body of the computer gets very hot (especially near the hinge where the screen is attached) and in some cases my fingers can feel the unconfortable temperature even when just typing on the keys. I should note that this is happening during the summer, during which the temperatures outside float around 32 °C (89 °F), but I'm still worried it could keep happening later on during the year.
My warranty is expiring in a month so I'm wondering whether I should get my pc checked before it's over.
What do you think about these temperatures? Is there anything I should worry about? Should I contact Apple?

You can ship your MBP for examination and servicing by contacting Apple, but you will be without the MBP for a period of time. First determine you warranty status:
https://selfsolve.apple.com/agreementWarrantyDynamic.do
Create a time line of MUST dates for shipping and/or a trip to an Apple store.
In the interim, lets see if we can do something positive. In addition to what I suggested earlier, run an Apple Hardware test:
http://support.apple.com/kb/ht1509
You may have to use OPTION D to start it.
Ciao.

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^ What do you mean by this?
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When the imaging process is complete, select the newly created disk image in the device pane. Then, choose Images > Scan Image for Restore... from the menu bar, and let the scan complete.
Quit Disk Utility (press Command-Q). Then press Command-Q to quit the Mac OS X installer; you will be prompted to restart.
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What does Images > Scan Image for Restore mean?
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Target Display Mode: Frequently Asked Questions (FAQ)
with a mini display to mini display cable. Attach it to the Thunderbolt port on your MBP and to the mini display port on your iMac.
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Welcome to Apple Support Communities
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I got this information from here:
http://reviews.cnet.com/8301-13727_7-20064489-263.html
Back up your data.
Use Time Machine or a system cloning utility to create a full and restorable backup of your data. If you suspect bad blocks, then when cloning you might consider not using a "block-level" copy process, since this will likely run into problems.
Boot to the utilities DVD.
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Restore the OS installation.
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Since no one replied I figured out how to do it myself.
1.) First I plugged in my external hard drive with my Time Machine backups on them, then I opened Finder and click on my external hard drive under devices.
2.) Next I clicked on and opened the folder named "Backups.backupdb"
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4.) Inside that folder, I clicked and opened the folder named "Macintosh HD"
5.) Inside that folder, I clicked and opended the folder named "Users"
6.) Inside that folder, I clicked and opended the folder named "Daniel" which was my Username on my previous Mac.
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Keep in mind this is only helpful if you are trying to access old backups (backed up from another Mac) on a new or different Mac. (Sorry for the blurry images)
Hope this somehow helps someone else,
- Daniel 

MacBook Pro (mid 2012) reaches quite high temperatures. Is this normal?

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