Received: 44.60 GB
Transmitted: 6.16 GB
Total: 50.76 GB
Not quite as high as August, but September puts on a decent show. The spike on the 27th — the second-highest day on record so far — comes from keeping two kids with fevers home from church and trying to keep them entertained.
Still, a back-of-the-napkin calculation shows that I'd still be (barely) under my bandwidth cap for the month if that day was every day for a month.