Barometric Pressure in California, United States 
1013 hPa
15.0 ℃
50%
3.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in California hour by hour across the next 6 hourly readings.
California's air pressure changes with the weather. When high pressure dominates, it's usually sunny. Low pressure brings clouds and rain.
The state's geography affects air pressure. Mountains block airflow, creating different pressure areas. Coastal regions have milder pressure changes.
In winter, low pressure brings rain. Summer high pressure makes it hot and dry. Spring and fall have milder pressure and temperatures.
California has a Mediterranean climate. This means it has high pressure in summer and low pressure in winter, leading to distinct wet and dry seasons.