0000 hPa
00.00 inHg
00.0 ℃
0.00 ℉
00.0 m/s
00.0 mph
00.0%
Get Alerts 🚨. Sign up to receive alerts when the barometric pressure changes significantly.
The pressure in Pomona, United States is predicted to slowly rise over the next few hours, with an average pressure of 1020.4 hPa today, which is considered normal.
Weather prediction: Expect more fair, dry, cool weather
The daily total fluctuation in pressure in Pomona is 4.3 hPa, with a low of 1017.6 hPa and a high of 1021.9 hPa. The daily average here is higher than in most cities around the world.
Weather patterns in Pomona cause barometric pressure to rise and fall. High pressure systems bring clear skies, while low pressure systems bring clouds and storms. Pressure changes quickly when storms move in.
Pomona's elevation of 800 feet above sea level affects atmospheric pressure. The San Gabriel Mountains to the north block some air masses, causing pressure to vary. The valley location also traps air, making pressure changes more dramatic.
In winter, pressure is usually low, bringing rain and cool temperatures. In summer, pressure is high, making it hot and dry. Spring and fall bring gentle pressure changes and mild weather.
Pomona has a Mediterranean climate, characterized by dry summers and wet winters. This climate type means pressure fluctuations are big, making weather changes feel more extreme.