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Köppen climate types of Oregon, using 1991-2020 climate normals. 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.
The warmest month is August, with an average high temperature of 82.3 °F (27.9 °C). Because of its inland location 62 miles (100 km) from the coast, as well as the protective nature of the Oregon Coast Range to its west, Portland summers are less susceptible to the moderating influence of the nearby Pacific Ocean.
The corresponding averages for July were 68 °F or 20 °C and 51 °F or 10.6 °C. 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 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 Coast Range to the west, and the Calapooya ...
English: Monthly Climate Normals (1991-2020) - Portland Area, OR(ThreadEx) Date: ... Portland, Oregon; Global file usage. The following other wikis use this file:
It is the ninth largest state in the United States. [1] Oregon's highest point is the summit of Mount Hood, at 11,249 feet (3,429 m), and its lowest point is the sea level of the Pacific Ocean along the Oregon Coast. [2] Oregon's mean elevation is 3,300 feet (1,006 m). Crater Lake National Park, the state's only national park, is the site of ...
On May 14, cities such as Hoquiam, Washington and Florence, Oregon set monthly temperature records, with high temperatures of 90 °F (32 °C) or above. Seattle reached 89 °F (32 °C) the same day. Eugene and Portland reached 94 °F (34 °C) and 92 °F (33 °C), respectively.
The normal monthly mean temperature ranges from 40.5 °F (4.7 °C) in December to 67.5 °F (19.7 °C) in August. Annual precipitation averages 37.64 inches (956 mm), with normal monthly precipitation peaking in November. [14]
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