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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 hottest months are July and August, with a normal monthly mean temperature of 67.8 to 67.9 °F (19.9 to 19.9 °C), with an average of 16 days per year reaching 90 °F (32 °C). The coolest month is December, with a mean temperature of 40.6 °F (4.8 °C), and there are 52 mornings per year with a low at or below freezing, and 2 afternoons ...
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 ...
Portland, Salem and Eugene, Oregon, typically receive about 2.50 inches of rain in the entire month of May. Rainfall totals can come close to this factoring in the storm this weekend and ...
Maintenance teams will be back in the parks early next week to assess and triage damage caused by the weather. University of Oregon campus in Eugene is closing at 8 p.m. Saturday and will reopen ...
Geography of Oregon. Oregon is 295 miles (475 km) north to south at longest distance, and 395 miles (636 km) east to west. With an area of 98,381 square miles (254,810 km 2 ), Oregon is slightly larger than the United Kingdom. It is the ninth largest state in the United States. [1]
On average, the first frost occurs October 22, and the last on May 6. [ citation needed ] The Rogue Valley is in USDA plant hardiness zones 7–9. [2] Sub-zero temperatures are extremely rare in the valley; the Rogue Valley International-Medford Airport has not recorded such extreme cold weather since December 21, 1990, when the temperature ...
Alvord Desert. / 42.53; -118.46. 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. Two mountain ranges separate it from the Pacific ...