Originally Posted by Coastarine
Your wort probably wasn't mixed thoroughly. Expect ~6.2%.
Yeah, that's probably it. I took the sample from my filtering/bottling bucket before I transferred it to my Carboy (where I shook the hell out of it to oxygenate and mix). Fermentation seems slower than I would have expected, but my laundry room is a little chillier than the rest of the house, so I'll look at that as a good thing.