This city lies in a large prairie running through the center of the United States. It is fairly flat and is one of the largest cities in the world not located on a navigable river. The city was founded in the 1840s as a frontier trading post and has been fostering entrepreneurs ever since. The weather here is painfully hot in July and August with high temperatures in the upper 90s (37 C.) to over 105 degrees (40 C.), but the rest of the year is quite nice. Winter may see temperatures below 10 degrees (-12 C.), but it usually warms back up quickly. Annual precipitation is 33.7 inches (86.4 cm) per year.