Southwest Facts Average winter 41 6 F 5 3 C Average summer 77 5 F 25 2 C Lowest point Sea level Highest point 13,161 feet 4,011 m Wheeler Peak New Mexico Smallest state Oklahoma 69,898 square miles 181,034 9 sq km 1 8 water 98 1 land Largest state Texas 268,596 square miles 695,660 sq km 2 7 water 97 2 land 5 Midwest Northeast Southeast Southwest West
