Barometric Pressure in Simi Valley, United States 
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The pressure in Simi Valley, California, United States is predicted to slowly drop over the next few hours, with an average pressure of 984.7 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Simi Valley is 4.4 hPa, with a low of 982.5 hPa and a high of 986.9 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Simi Valley hour by hour and stay informed about how it will change over the next 6 hours.
Weather patterns in Simi Valley bring changes in air pressure, which can rise or fall depending on the type of weather. A high-pressure system brings good weather, while a low-pressure system brings bad weather.
Simi Valley's elevation, 700 feet above sea level, and surrounding mountains influence air pressure. The mountains can block or redirect air masses, causing pressure changes.
In the winter, air pressure is usually high, bringing dry and clear weather. In the summer, air pressure is usually low, bringing hot and dry weather. In the spring and fall, air pressure is in between, bringing mild weather.
Simi Valley has a Mediterranean climate, known for dry summers and mild winters. This climate type means air pressure fluctuations are moderate, making the weather comfortable for people.