Custer County RainfallUnited StatesSDCuster County75%Custer 75% Chance 65%Hermosa 65% Chance 65%Fairburn 65% Chance 70%Dewey 70% Chance 70%Buffalo Gap 70% 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