I set though a late November game against Southern Miss in Louisville that was -3. It can happen and Morgantown is way colder than Louisville in December.
Here's the skinny on Morgantown's weather in December. The monthly average for December a high of 47 degrees and a low of 27 degrees. At first glance that does not seem to be very cold. But that is averages.
Here are some statistics on December 6.
Record low is 14 degrees
Record high 70 degrees
Mean temperature is 29 degrees
Average temperature is 38 degrees.
You will say, ole Wilkie is wrong about the cold, but look what the record lows are for the first 15 days of December in Morgantown:
12/1 5 degrees in 1978.
12/2 14 degrees in 1964.
12/3 -1 degrees in 1976.
12/4 6 degrees in 1966.
12/5 13 degrees in 1978.
12/6 14 degrees in 1958.
12/7 7 degrees in 1977.
12/8 7 degrees in 1977.
12/9 9 degrees in 1960.
12/10 -2 degrees in 1958.
12/11 -1 degrees in 1950.
12/12 2 degrees in 1962.
12/13 -2 degrees in 1962
12/14 4 degrees in 1958.
12/15 5 degrees in 1958.
Dude half of the days or colder than median of 29 degrees. You better pray for Global Warming!
So as you can see Morgantown will probably not be warm and can often be like playing in a freezer.