Saint Helens, Oregon is a charming city located in Columbia County. It experiences a mild and temperate climate typical of the Pacific Northwest region. Summers are warm with average temperatures ranging from 70°F to 80°F, while winters are cool with temperatures averaging between 30°F and 50°F. Rainfall is abundant throughout the year, with the wettest months being November through February.

The city is surrounded by beautiful natural landscapes, including the Columbia River and nearby lakes. The hydrology constituents of Saint Helens are primarily influenced by the Columbia River, which provides ample opportunities for fishing, boating, and water sports. The river is known for its diverse fish populations, including salmon and steelhead.

Outdoor enthusiasts will find plenty of recreational opportunities in Saint Helens. The area offers numerous hiking and biking trails, perfect for exploring the lush forests and scenic views. The nearby Scappoose Bay Marine Park is a popular spot for bird-watching, kayaking, and paddleboarding. Additionally, the city boasts parks with picnic areas, playgrounds, and sports fields, providing options for family-friendly outdoor activities.

Overall, Saint Helens, Oregon offers a pleasant climate, abundant hydrology constituents, and a wide range of outdoor recreation opportunities for visitors and residents alike.