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Trewartha climate types of Oregon. According to the Köppen climate classification, most of Western Oregon has a warm-summer Mediterranean climate (or Csb type), which features warm, dry summers, and wet winters with frequent overcast and cloudy skies. Eastern Oregon falls into the cold semi-arid climate (or BSk type), which features drier weather.
41-59000. GNIS ID. 2411471 [ 6] Website. www .portland .gov. Portland ( / ˈpɔːrtlənd / 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 ...
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as many of those in the North Cascades, and the notable volcanoes known as the High Cascades.
A flow of moisture from the Pacific Ocean, known as a marine layer, will persist along the Southern California coast, including the Los Angeles and San Diego metro areas. "This overall pattern is ...
20 days. December 18, 1964. ( 1964-12-18) – January 7, 1965. ( 1965-01-07) Location. California, Oregon, and Washington states. The Christmas flood of 1964 was a major flood in the United States' Pacific Northwest and some of Northern California between December 18, 1964, and January 7, 1965, spanning the Christmas holiday. [1]
In Portland, Oregon, where temperatures are expected to rise above 100 degrees Saturday, Dr. Richard Bruno, the Multnomah County health officer, said he was concerned because Portlanders had ...
Annually, there are high temperatures of 90 °F or 32.2 °C on an average of only 0.1 days and there are low temperatures of 32 °F or 0 °C or lower on an average of 9.2 days. The record high temperature was 102 °F (38.9 °C) on September 10, 1973. The record low temperature was 12 °F (−11.1 °C) on January 21, 1962.
Great Flood of 1862. The Great Flood of 1862 was the largest flood in the recorded history of California, Oregon, and Nevada, inundating the western United States and portions of British Columbia and Mexico. It was preceded by weeks of continuous rains and snows that began in Oregon in November 1861 and continued into January 1862.