Cornelius is a small town in Oregon that experiences a mild, temperate climate with warm, dry summers and cool, wet winters. The hydrology constituents of the town consist of the Tualatin River, which provides water for irrigation and recreation. The town is surrounded by vineyards and forests, offering plenty of opportunities for outdoor recreation such as hiking, camping, and fishing. Visitors can also explore the local parks and trails, including the Banks-Vernonia State Trail and Vernonia Lake. Additionally, Cornelius hosts several annual events and festivals, including the Cornelius Concert Series and the Cornelius Pass Roadhouse Oktoberfest.