Barometric Pressure in Roseburg, United States

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Forecast

Roseburg's air pressure is affected by its location in the Umpqua Valley, surrounded by mountains. This creates a rain shadow effect, making Roseburg drier than areas west of it. In winter, cold air from the north brings low pressure, causing rain and wind. In summer, high pressure from the Pacific Ocean brings warm, dry weather. Roseburg has a Mediterranean climate, characterized by mild, wet winters and hot, dry summers, with significant pressure changes between seasons.