Mortgage rates began the week in decent shape, but moved higher somewhat abruptly yesterday. Context is important though. The smallest increment of adjustment for mortgages is typically 0.125%, and we haven't seen a move that big since early November. In fact, the overall range in 30yr fixed rates hasn't even been 0.125% during that time!
In other words, we're only able to say "highest rates in a month" because they finally trickled to just slightly higher levels. On that note, we might as well prepare for the next technicality. Specifically, if things get just a bit worse, we'll soon be able to say "highest rates in 9 months," even though they won't be too terribly different from today's.