Union County RainfallUnited StatesSDUnion County30%Elk Point 30% Chance 25%Richland 25% Chance 10%Beresford 10% Chance 15%Alcester 15% Chance 30%North Sioux City 30% Chance Adams Homestead and Nature PreserveAlcesterBeresfordBig SpringsBurbank LakeDakota DunesElk PointEmmetGraham FieldHorseshoe LakeJeffersonLake NixonMcCook LakeMJ Aviation Airport IINoraNorth Sioux CityRichlandUnion GroveWynstone