Barometric Pressure in Petersburg, United States 
1015.7 hPa
15.2 ℃
95%
2.1 m/s
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The average pressure in Petersburg, Virginia, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at frequent intervals
Rapid Pressure Changes
Rapid pressure changes detected in Petersburg, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Rise : ()
- Rapid Rise : ()
The daily total fluctuation in pressure in Petersburg is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Petersburg hour by hour across the next 6 hourly readings.
Petersburg has humid subtropical weather. Air pressure changes here are linked to weather patterns. High pressure brings clear skies, while low pressure brings rain and storms.
The city's geography, near the James River and at a low elevation, affects air pressure. Moist air from the river often brings high humidity and lower pressure.
In summer, high pressure dominates, bringing heat and humidity. In winter, low pressure systems bring cold fronts and snow.
Seasonal changes impact pressure. Spring and fall have more stable pressure, with mild temperatures.
Petersburg's climate type means it experiences extreme pressure changes. This leads to varied weather, including hot summers and mild winters.