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Navigate by macro region, then drill into state and city charts.
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Navigate by macro region, then drill into state and city charts.
One-click shortcuts to high-demand city pressure charts.
Static state links for quick navigation to state pages.
Quick answers for common US pressure questions. Open any item for details.
A common day-to-day range is around 29.76 to 30.18 inHg (1008 to 1022 hPa).
Local baseline varies by elevation, season, and weather pattern, so compare with recent local trends instead of one fixed national number.
Check short-window changes first, especially the 6-hour trend.
A drop or rise around 0.06 inHg (about 2 hPa) or more over 6 hours can feel noticeable for some people, especially near frontal passages.
Some people report sensitivity to pressure swings, but the effect is individual.
This chart is for weather context, not diagnosis. If symptoms are severe or persistent, discuss them with a licensed clinician.
1 inHg equals 33.8639 hPa (and 1 hPa is about 0.02953 inHg).
Use inHg for US-style readings and hPa for international weather reporting. Keep one unit consistent when comparing trends.
Not by itself. Trend direction and local context usually matter more than one value.
High pressure can still come with local discomfort, and low pressure is not always severe. Track direction (rising/falling/stable) over time.
Use the city/state search and jump links to open your nearest city chart quickly.
The hub is optimized for direct navigation to city and state pages, where you can confirm current pressure, short trends, and forecast lines.
Use rising, falling, and stable trends together with short-window pressure changes to make better daily planning decisions.
Select a state on the interactive map to view air pressure data and city-level details.