Barometric Pressure in Corvallis, United States 
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Corvallis hour by hour and stay informed about how it will change over the next 6 hours.
Upcoming Days
Stay informed about the barometric pressure trends in Corvallis for the upcoming days, including daily minimum and maximum readings.
The barometric pressure in Corvallis, Oregon averages around 30.04 inches. This is slightly higher than the national average.
Corvallis is situated in the Willamette Valley. The valley is surrounded by mountains to the east and west. These mountains block some air masses from reaching the city.
The Coastal Range is to the west. It prevents moist ocean air from entering the valley. The Cascade Range is to the east. It blocks cold air from the east.
The valley's terrain contributes to Corvallis' unique pressure patterns. Weather systems often stall or move slowly over the area. This leads to steady, consistent weather conditions.