water falls from... the sky?

I opened the screen door to let the dogs inside and saw these odd little spots all over the patio. I began looking around trying to figure out where they were coming from and/or what was making the spots. It's rain. Oh, how quickly we've become accustomed to daily sunshine and the very rare rain cloud. I think today is the 5th time we've seen any precipitation at all in 6 months (and what you see there is about all) and it has been months since the last time...