0000 hPa
00.00 inHg
00.0 ℃
0.00 ℉
00.0 m/s
00.0 mph
00.0%
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The pressure in Philadelphia, United States is predicted to rise over the next few hours, with an average pressure of 1011.8 hPa today, which is considered normal.
Weather prediction: Expect fair, dry, cool weather and a strong breeze
The daily total fluctuation in pressure in Philadelphia is 2 hPa, with a low of 1010.6 hPa and a high of 1012.6 hPa. The daily average here is higher than in most cities around the world.
Weather in Philadelphia changes often because of its location near the Atlantic Ocean and Gulf of Mexico. This causes barometric pressure to rise and fall frequently.
Philadelphia's elevation near sea level and varied landscape of hills and rivers affect atmospheric pressure. Mountains to the west block some air masses, while the Atlantic Ocean brings in others.
In winter, pressure is usually low, bringing cold air and snow. In summer, high pressure dominates, leading to warm and humid weather. Spring and fall have more variable pressure.
Philadelphia has a humid subtropical climate, with hot summers and cold winters. This leads to large fluctuations in barometric pressure, making the weather feel unpredictable and changing often.