Barometric Pressure in Annandale, Virginia, US
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Annandale, United States 
is predicted to slowly drop over the next few hours, with an average pressure of 1016.6 hPa today, which is considered normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Annandale is 8.1 hPa, with a low of 1011 hPa and a high of 1019.1 hPa. The daily average here is higher than in most cities around the world.
Forecast
The barometric pressure in Annandale, Virginia varies throughout the day. It changes depending on the movement of high and low-pressure systems. These systems bring different types of weather to the area.
Annandale is located near the Piedmont region. This region is a gentler slope between the Appalachian Mountains and the Atlantic Coastal Plain. The surrounding landscape affects the atmospheric pressure.
The mountains to the west influence the pressure. They block or redirect air masses moving from the west. This can lead to changes in the pressure. The coastal plain to the east has a different effect. It allows air from the ocean to move freely into the area.