Westfield is a small town located in Plymouth County, Iowa. It has a humid continental climate characterized by warm summers and cold winters. Average temperatures range from 20°F (-6°C) in winter to 85°F (29°C) in summer. Precipitation is evenly distributed throughout the year, with an average annual rainfall of 30 inches (76 cm) and snowfall around 30 inches (76 cm) as well.

The hydrology of Westfield primarily consists of the Floyd River, which flows through the town, offering recreational opportunities such as fishing, canoeing, and kayaking. The river also supports diverse wildlife, including various fish species and waterfowl.

Outdoor recreation enthusiasts will find plenty of opportunities in and around Westfield. The town is surrounded by picturesque countryside, ideal for activities like hiking, biking, and birdwatching. There are several parks and nature reserves nearby, including Plymouth County Conservation Park and Broken Kettle Grasslands Preserve, both offering trails for exploration and wildlife observation.

In conclusion, Westfield, Iowa, experiences a typical Midwestern climate, and its hydrology is centered around the Floyd River. The area offers various outdoor recreation opportunities due to its beautiful natural surroundings and proximity to parks and reserves.