The blocks are supposed to be 2 minutes apart on average. Lets see:

We are at approx block 82,500, so 82,500 blocks have been generated.

It's been almost 4 months since release. The minutes that have passed since then is about:

4*30*24*60 or 172,800 minutes

That would average about 172,800/82,500 or 2.09 minutes/block.

If you see larger times, maybe you are looking at the time between the generation of blocks at a particular pool, not for the whole network.