Barometric Pressure in Bethesda, Maryland, US

The pressure in Bethesda, United States is predicted to slowly rise over the next few hours, with an average pressure of 999.5 hPa today, which is lower than normal.

Weather prediction: Expect more fair, dry, cool weather

The daily total fluctuation in pressure in Bethesda is 21.8 hPa, with a low of 985.9 hPa and a high of 1007.7 hPa. The daily average here is higher than in most cities around the world.

Forecast

The barometric pressure in Bethesda fluctuates throughout the year. It is affected by the city's proximity to the Atlantic Ocean and the Appalachian Mountains. Changes in pressure bring different weather patterns. High pressure usually indicates fair weather, while low pressure signals stormy conditions.

Bethesda is situated in a valley near the Fall Line. This transition zone between the coastal plain and the Piedmont plateau creates a unique landscape. The surrounding hills and valleys influence the flow of air masses and the movement of weather systems.

The city's location east of the Appalachian Mountains also plays a role in shaping its weather. Moist air from the Atlantic Ocean rises over the mountains, cools, and condenses, resulting in precipitation. This orographic effect contributes to the region's humid subtropical climate.