The South Raccoon Watershed (HUC 07100007) covers an area of approximately 875 square miles in Iowa. The watershed is characterized by a temperate climate with cold winters and warm summers. The hydrology of the South Raccoon Watershed is dominated by surface water, with streams and rivers flowing into the Raccoon River. The watershed receives an average of 36 inches of precipitation per year, with significant snowfall in the winter months. The snowpack in the watershed can have a significant impact on spring runoff and water availability in the summer months. The South Raccoon Watershed contains several reservoirs, which are used for recreation and water supply purposes. Interesting climatic trends in the area include an increase in extreme precipitation events and warming temperatures. These trends can have significant impacts on the hydrology and ecology of the watershed.