Yes, Emory, TX is too far north in winter. Hopefully, you can move much farther south - Austin or farther. Even the Austin area can be cold. Many snowbirds go around Rockport or south to Mission area but can be windy there.
You could also try Arizona where it's drier. Don't be farther north than the greater Phoenix area though because of snow and cold. It's all about elevation in Arizona.
New Mexico is higher elevation than Arizona in the southern part and it can also be cold. We tried it but had to move over to Arizona.
We're too old school, printed an outline map of USA and color in the states with a highlighter. I try very hard to stay within the lines, something I always had trouble with even when a kid with crayons.
Spring project: mount & frame a USA state & highway map on beaver board and use pins for a little more precision marking where we've stayed.
Vern, what mptjelgin posts seems to work well. We spend sometime north of Libby, MT and it is packrat kingdom. Most people in rv's in that area use rope lights around the perimeter of the rig. We use solar lights at every location that something from the fiver touches the ground, wheels, jacks, etc. seems to also work. When we were a rookie in that area years ago, we unknowingly hauled one over to Cour d alene, ID. The first night in the RV park I thought I heard something down in the storage bay. Next morning after daylight, I opened the large bay door and sure enough the ugliest thing on God's green earth took off for a dark area. Went to a nearby farm store and bought the biggest rat trap they had. Placed it in the bay baited and shut the bay door. About ten minutes later when we were walking to the truck, I heard something like a spring snapping. Opened up the bay door and sure enough it was in the trap. Grabbed a pair of pump handle pliers and the trap and Mr. Rat both got deposited in the park dumpster. Fortunately we didn't end up with any damage.
And by the way Vern, we see you from time to time in the Kalispell and Somers area during the summer, we for one sure appreciate your posts either asking for info or feeding info to us. Just like your furnace exhaust pipe post above. As the Head Wrench on this fiver, thank you very much and have a great day.