ELLSWORTH AIR FORCE BASE, S.D.-- Master Sgt. Mark McFarland, 28th Bomb Wing planning NCO In-Charge, shovels snow after a 3 to 5 inch snowfall, Jan. 12. The average annual amount of snowfall in South Dakota is 24 to 30 inches across most of the state, and 60 to 100 inches in the Black Hills. (U.S. Air Force photo/Airman 1st Class Corey Hook)