Custer County RainfallUnited StatesSDCuster County50%Custer 50% Chance 45%Hermosa 45% Chance 45%Fairburn 45% Chance 35%Dewey 35% Chance 35%Buffalo Gap 35% Chance Big Rock ParkBismark LakeBrown FieldBuffalo GapCenter LakeCrazy HorseCusterCuster County AirportCuster State ParkCuster State Park AirportDeweyFairburnHermosaJewel Cave National MonumentLegion LakePringleSanatorStockade LakeSylvan LakeWind Cave National Park