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Oregon rainfall varies widely from region to region. Precipitation in the state varies widely: some western coastal slopes approach 200 inches (5,100 mm) annually, while the driest places, such as the Alvord Desert (in the rain shadow of Steens Mountain) in eastern Oregon, get as little as 5 inches (130 mm).
Despite winter temperatures being above freezing on an average 72 of 89 afternoons – and minima above 32 °F (0 °C) on 31 mornings during a typical winter – precipitation is so heavy that snow cover in an average January reaches 9 inches (0.23 m), whilst the record seasonal snowfall is 323.50 inches (8.22 m) between July 1998 and June 1999.
The Oregon Coast Range, ... Annual precipitation differs from 60 inches ... Map of the region with major rivers in blue; orange line shows divide between watersheds ...
The Alvord Desert is a desert located in Harney County, in southeastern Oregon in the Western United States.It is roughly southeast of Steens Mountain.The Alvord Desert is a 12-by-7-mile (19 by 11 km) dry lake bed and averages 7 inches (180 mm) of rain a year.
Köppen climate types in Oregon. Most of Oregon has a generally mild climate, though there is significant variation given the variety of landscapes across the state. [23] The state's western region (west of the Cascade Range) has an oceanic climate, populated by dense evergreen mixed forests. Western Oregon's climate is heavily influenced by ...
The climate varies some among Central Oregon communities, but will see approximately 300 days of sunshine a year, which is the area's real draw. Summer temperatures range between 45 and 85 °F (7 and 29 °C) and winter months average between 20 and 40 °F (−7 and 4 °C). [ 27 ]
This map shows rainfall from Helene and in the days preceding the storm that combined to create disastrous flooding. Helene rainfall map: See rain totals around southern Appalachian Mountains Skip ...
The task of defining and mapping these ecoregions was carried out by the Oregon Ecoregion Project, a collaborative effort involving the EPA, the United States Geological Survey (USGS), the United States Forest Service (USFS), and other state and federal agencies. The new classification system they developed may differ from previous frameworks ...