Barometric Pressure in Portville, United States 
1025.8 hPa
9.2 ℃
61%
3.66 m/s
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The average pressure in Portville, New York, United States today is , which is higher than normal. Pressure is trending rising.
Weather prediction: Fairly fine, possible showers early
Rapid Pressure Changes
Rapid pressure changes detected in Portville, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Rise : ()
The daily total fluctuation in pressure in Portville is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Portville hour by hour across the next 6 hourly readings.
Weather patterns in Portville cause barometric pressure to rise and fall. When a low-pressure system moves in, pressure drops, and when a high-pressure system arrives, pressure increases.
Portville's elevation, 1,450 feet above sea level, and surrounding hills influence atmospheric pressure. The landscape blocks or redirects air masses, affecting pressure variability.
In winter, pressure is often lower due to cold air masses from Canada. Spring and summer bring higher pressure with warmer air from the Gulf of Mexico. Autumn's mix of air masses creates variable pressure.
Portville has a humid continental climate, which means large pressure fluctuations occur between seasons, affecting the weather and daily life.