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Glaciers remain year-round on some Cascade peaks higher than 7,000 feet (2,100 m) above sea level. Annual snowfall along the coastal plain averages 1 to 3 inches (2.5 to 7.6 cm) a year, including years with none. Further inland, between the Coast Range and the Cascades, snowfall generally averages from 5 to 10 inches (13 to 25 cm) a year.
The Willamette Valley ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency in the U.S. states of Oregon and Washington.Slightly larger than the Willamette Valley for which it is named, the ecoregion contains fluvial terraces and floodplains of the Willamette River system, scattered hills, buttes, and adjacent foothills.
Precipitation varies considerably across the valley and is closely correlated with elevation. Annual totals range from 36 inches (910 mm) at the lowest elevations to more than 80 inches (2,000 mm) in the foothills. Eugene, at the southern end of the valley, is 425 feet (130 m) above sea level and receives 46 inches (1,200 mm) per year.
Snow falls on Willamette Street during a winter storm Saturday, Jan. 13, 2024, in Eugene, Ore.
As Eugene and the rest of Willamette Valley attempt to dig out from a long weekend of snow and ice and frigid temperatures, weather forecasts were predicting a much-needed dose of clear sky for ...
The water year is designated by the calendar year in which it ends, so the 2024 water year started on October 1, 2023, and will end on September 30, 2024. [1] One way to identify a water-year is to find the successive 12-month period that most consistently, year after year, gives the highest correlation between precipitation and streamflow and ...
2410460 [3] Website. www .eugene-or .gov. Eugene ( / juːˈdʒiːn / yoo-JEEN) is a city in and the county seat of Lane County, Oregon, United States. It is located at the southern end of the Willamette Valley, near the confluence of the McKenzie and Willamette rivers, about 50 miles (80 km) east of the Oregon Coast. [9]
The eastern part of the contiguous United States east of the 98th meridian, the mountains of the Pacific Northwest, the Willamette Valley, and the Sierra Nevada range are the wetter portions of the nation, with average rainfall exceeding 30 inches (760 mm) per year. The drier areas are the Desert Southwest, Great Basin, valleys of northeast ...