The pressure in Washington, D.C., United States is predicted to slowly drop over the next few hours, with an average pressure of 1019.6 hPa today, which is considered normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Washington, D.C. is 3 hPa, with a low of 1018.1 hPa and a high of 1021.1 hPa. The daily average here is higher than in most cities around the world.
In Washington, D.C., the barometric pressure fluctuates throughout the year. During the colder months of winter and early spring, the barometric pressure tends to be higher, indicating stable conditions. In the warmer months of summer and fall, the barometric pressure is often lower, indicating the potential for unsettled weather.
The landscape around Washington, D.C. influences the atmospheric pressure in the area. The city is situated on the Atlantic Coastal Plain, which is relatively flat and surrounded by water bodies. This proximity to the Chesapeake Bay and the Atlantic Ocean can affect the atmospheric pressure, as air masses interact with the water and land surfaces. Additionally, the presence of the nearby Blue Ridge Mountains to the west can also influence the pressure patterns by altering the flow of air masses.