Texans are not shivering alone. The storm moved north and east, and temperatures across the middle of the country also plummeted to new lows that haven’t been felt in a century or more, with temperatures dropping to minus 14 in Oklahoma City and minus 20 in Fayetteville, Arkansas. If there’s a silver lining, it’s that the sub-freezing weather came too early to inflict significant damage on many crops, with a few exceptions, such as citrus and some stone fruits. It will take a toll, however, on many of the common landscaping plants and trees that adorn yards and parks.