Well, Alex, you may have cursed Houston with all your talk of cold sand and calcified mountains.
This morning I looked out the window, and for the first time this fall, there was a layer of frost on every house's roof in my neighborhood. Not completely unusual, but unusual for so early in the "winter" (apologies to those from more northerly climates). I was even a little more suprised upon getting into my car. I had to turn the winshield wipers on to get rid of a layer of ice completely covering my windshield. Well, imagine my shock when pulling out of my driveway when I see on most neighbor's lawns something completely unexpected: a thin layer of snow/frost covering the entire lawn of a few neighbors and parts of the lawn of most others. Now, this is 8 AM in the morning, so a lot of the rooftop frost had melted in the direct sunlight it was getting, but here, still in direct sunlight, was either snow or frost patches all over the grass.