The answer is NO!!! The ground is so far from frozen that you can actually endanger your plants by protecting them too soon. Rodents are still active and will take shelter among salt marsh hay, pine needles, evergreen boughs or burlap wrap. Then their attention may turn to gnawing stems and leaves of the nearby plants.
We at PBOG are watching the weather closely for the right time to apply winter protection. We'll look for a spell of steady temperatures in the 20s, before a heavy snowfall, when the ground is not likely to completely unfreeze again.
For tender roses, we mound up a foot of compost around the bases to offer at least 10 degrees of frost protection. Again, we'll wait a bit for this task. Some years this day comes in January!