Barometric Pressure in Fairfax, United States 
0000 hPa
00.0 ℃
00.0%
00.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Fairfax hour by hour and stay informed about how it will change over the next 6 hours.
Fairfax's weather pattern moves from high to low pressure and back to high again, causing changes in the air pressure.
The area's 300-foot elevation and mix of hills and valleys affect atmospheric pressure, making it change often. The nearby Blue Ridge Mountains also influence pressure patterns.
In winter, pressure is usually high, bringing cold air. In summer, pressure is lower, making it hot and humid. Spring and autumn have moderate pressure, with mild weather.
Fairfax has a humid subtropical climate, with noticeable changes in barometric pressure throughout the year, which affects the weather and how people feel.