Barometric Pressure in Washington, United States 
1012.3 hPa
14.6 ℃
87%
1.24 m/s
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The average pressure in Washington, District of Columbia, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fine, possible showers
The daily total fluctuation in pressure in Washington is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Washington hour by hour across the next 6 hourly readings.
Washington, D.C. has changing air pressure due to its location near the Atlantic Ocean. Ocean winds bring moisture, making air pressure rise, often with cloudy skies. Mountains to the west block some winds, making pressure drop, leading to clearer skies.
In summer, warm air from the ocean makes pressure rise, causing hot and humid weather. In winter, cold air from the north brings low pressure, making it cold and sometimes snowy. Spring and fall have gentle pressure changes, with mild temperatures.
Washington, D.C. has a humid subtropical climate, which means it has big temperature differences between summer and winter. This climate type causes big pressure changes, leading to varying weather patterns throughout the year.