Allison, Iowa is a small town in Butler County. The climate in Allison is considered continental, with hot summers and cold winters. The annual precipitation is around 32 inches, and the town is located in the Cedar River watershed. The Cedar River supports recreational activities, such as fishing and kayaking, and there are several parks in the area for outdoor adventures. The city also offers a trail system for biking and walking. In terms of hydrology constituents, the town operates a wastewater treatment plant to manage the community's wastewater. Overall, Allison offers a small-town feel with plenty of opportunities for outdoor recreation.