"Rain, rain, go away! Come again another day!" This nursery rhyme encompasses how we've all felt about rain at one time or another. Some people love it, and some people hate it, but I think most people would agree that they've had at least a few great memories playing in the rain. Whether it's rainy or not, these top children's books about rain are one's your kids will be sure to pull off the shelves to read again and again.