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The heaviest snowfalls in Oregon occur in the Cascade Range. Snowfall in Oregon is greatest in the Cascade Range. Based on data from ski resorts and a few official weather stations, average annual snowfall in the Cascades can range from 300 to 550 inches (760 to 1,400 cm).
Willamette River. Willamette Valley basin. The Willamette Valley ( / wɪˈlæmɪt / ⓘ wil-AM-it) is a 150-mile (240 km) long valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the east, the Oregon ...
Portland: United States: 938 128 93 101 73 64 41 13 14 39 87 138 147 ... Average monthly precipitation (in mm) for selected cities in South America City Country
The climate is usually marine-influenced, but easterly winds from the Columbia River Gorge periodically bring continental temperature extremes. The region covers 305 square miles (790 km 2) in Washington and 269 square miles (697 km 2) in Oregon, including the northern and eastern suburbs of the Portland metropolitan area.
Portland (/ ˈ p ɔːr t l ə n d / PORT-lənd) is the most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated in the northwestern area of the state at the confluence of the Willamette and Columbia rivers, it is the county seat of Multnomah County, Oregon's most populous county.
The Pacific Northwest ( PNW ), sometimes referred to as Cascadia, is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common conception includes the U.S. states of Oregon, Washington, northern ...
Eugene's average annual temperature is 53.1 °F (11.7 °C), and annual precipitation at 40.83 inches (1,040 mm). Eugene is slightly cooler on average than Portland . Despite being located about 100 miles (160 km) south and at an only slightly higher elevation, Eugene has a more continental climate than Portland, less subject to the maritime air ...
The Oregon Coast Range, often called simply the Coast Range and sometimes the Pacific Coast Range, is a mountain range, in the Pacific Coast Ranges physiographic region, in the U.S. state of Oregon along the Pacific Ocean. This north-south running range extends over 200 miles (320 km) from the Columbia River in the north on the border of Oregon ...