Haven't really looked where I'm at but wouldn't be surprised if there are hints of them starting their path upward. Not sure if this is earlier than usual, I thought they normally really start coming out about mid-May. Maybe it's a bit earlier than that then, on average. Seem to recall them arriving about early May in 2004, though I also recall it was pretty warm at that point too.
I look forward to @Jebman jebwalks through the cicadas, taking in their songs! Would that be called a jebbrood walk then (for Brood X, or any Brood)?