Unfortunately, as an AI language model, I do not have access to specific information about a place called Ferguson, Iowa. However, I can provide a general overview of Iowa's climate and hydrology constituents. Iowa has a humid continental climate with four distinct seasons. The state receives an average of 33 inches of precipitation annually, mostly in the form of rain. Iowa's hydrology is dominated by the Mississippi River, which is the state's eastern border. There are also numerous smaller rivers and lakes throughout the state. Iowa offers many opportunities for outdoor recreation, including camping, fishing, hiking, and boating in its many state parks and recreation areas.