Union County RainfallUnited StatesSDUnion County15%Elk Point 15% Chance 15%Richland 15% Chance 15%Beresford 15% Chance 15%Alcester 15% Chance 15%North Sioux City 15% Chance Adams Homestead and Nature PreserveAlcesterBeresfordBig SpringsBurbank LakeDakota DunesElk PointEmmetGraham FieldHorseshoe LakeJeffersonLake NixonMcCook LakeMJ Aviation Airport IINoraNorth Sioux CityRichlandUnion GroveWynstone