Barometric Pressure in Fullerton, United States 
1009.6 hPa
33.5 ℃
37%
3.81 m/s
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The average pressure in Fullerton, California, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at frequent intervals
Rapid Pressure Changes
Rapid pressure changes detected in Fullerton, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
- Rapid Rise : ()
The daily total fluctuation in pressure in Fullerton is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Fullerton hour by hour across the next 6 hourly readings.
Fullerton has mild, sunny weather year-round. Air pressure is usually high due to its inland location and coastal influence.
The city's geography, with mountains nearby, affects air pressure. Cooler air from the ocean meets warmer air from the land.
In summer, high pressure brings clear skies and hot temperatures. Winters have lower pressure, bringing cooler temperatures and some rain.
Fullerton has a Mediterranean climate with low humidity. High pressure dominates, leading to mostly clear skies and pleasant weather.