Barometric Pressure in Phoenix, United States 
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The pressure in Phoenix, Arizona, United States is predicted to slowly drop over the next few hours, with an average pressure of 974.3 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Phoenix is 2.6 hPa, with a low of 973.1 hPa and a high of 975.7 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Phoenix hour by hour and stay informed about how it will change over the next 6 hours.
The barometric pressure in Phoenix, Arizona is typically high. It averages around 30.12 inches of mercury. This is due to its location in the Sonoran Desert.
Phoenix is surrounded by mountains to the north and east. These mountains block moisture from the Gulf of California. Moist air cannot reach the city easily. As a result, the air pressure remains high.
The Valley of the Sun, where Phoenix is located, is a basin. It is surrounded by mountains on all sides. This unique geography traps heat and affects local weather patterns. The air is dry and hot during the summer. It is mild and dry during the winter.