Barometric Pressure in Berwyn, United States 
1020.9 hPa
14.3 ℃
92%
3.08 m/s
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The average pressure in Berwyn, Pennsylvania, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at times, worse later
The daily total fluctuation in pressure in Berwyn is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Berwyn hour by hour across the next 6 hourly readings.
Berwyn, Pennsylvania has changing air pressure due to its location near the east coast. The Atlantic Ocean's warmth and moisture influence the area, making the air pressure rise and fall. Mountains to the west and north block some winds, affecting air pressure too. In winter, cold air from Canada brings low pressure and cold weather. In summer, warm air from the ocean brings high pressure and hot, humid weather. Berwyn has a humid continental climate, with big temperature differences between seasons. This climate type makes air pressure change a lot throughout the year.