Well, it is not really snow. It is fluff from the poplar cottonwood trees in our yard. We have 3 giant poplar trees, and there are a lot more of them in the neighborhood. This time of the year it can look like a blizzard as the fluff floats in the air and collects in piles on the lawns. As you walk by it is so light that it swirls about your feet.
A good rain shower will take care of it, and soon enough it will be just a memory, until next year.