Too cold for me. Stay warm.
We always carry 1 or 2 of those electric heaters in our RV since when you stay at an RV park, the site fee includes electric. Cost of running the propane heater comes out of our pocket.
Is your RV setup for winter? Does it have an enclosed underbelly and some way to heat the piping and tanks?
Our trailer doesn't have an enclosed underbelly but has heating pads attached to the tanks that can be turned on to prevent freezing. We've camped when it got down to about 9F and the water line into the RV froze but nothing else did.