Custer County RainfallUnited StatesSDCuster County80%Custer 80% Chance 85%Hermosa 85% Chance 85%Fairburn 85% Chance 60%Dewey 60% Chance 80%Buffalo Gap 80% 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