South Carolina's weather is predictably predictable. We can predictably predict that it will be all over the map.
There is one constant we have had with the last few years, including this year, that we can count on a few freezing days in February. It is interesting how this arctic blast will effect your crops.
A few of your winter crops may be “knocked back” a little, but will quickly recover. Remember that even though the temperatures dipped below freezing, that it didn't dip for long. The actual gr