 In recent years, average temperatures in the county seat of Detroit Lakes have ranged from a low of in January to a high of in July, although a record low of was recorded in February 1936 and a record high of was recorded in July 1936.Average monthly precipitation ranged from in February to in June.As of the 2000 United States Census, there were 30,000 people, 11,844 households, and 8,184 families in the county.