Normal Barometric Pressure Range: What's Typical?
Many weather apps show pressure, but without context the number means little. "Normal" barometric pressure depends on both sea-level standards and your local elevation.
Standard normal pressure at sea level
A commonly used reference value is:
- 29.92 inHg
- 1013.25 mb (hPa)
This is the standard atmospheric pressure at sea level under typical conditions.
Practical "normal range" many people use
In day-to-day forecasting at sea level, a practical range is often:
- About 29.80 to 30.20 inHg
- About 1009 to 1023 mb
Values below this range are usually considered lower pressure; values above are higher pressure.
Why your local normal may be different
Pressure readings vary with:
- Elevation
- Temperature patterns
- Regional weather systems
- Seasonal climate behavior
If you live at higher altitude, baseline pressure is lower than at sea level. That does not mean weather is "bad"; it is your local normal.
For symptom tracking, personal baseline beats generic range
If you are weather-sensitive, focus on:
- Your typical local pressure window
- How quickly pressure changes
- Which ranges coincide with symptoms
A person can react strongly at 29.95 inHg while someone else feels fine at 29.60 inHg. Individual pattern is key.
How to build your baseline in 4 weeks
Track daily:
- Morning and evening pressure
- Largest daily pressure swing
- Symptoms (type, timing, severity)
After 4 weeks, identify your low-risk and high-risk ranges. Then use forecast trends to plan ahead.
Bottom line
A sea-level normal reference is about 29.92 inHg (1013 mb), with a common practical range near 29.80-30.20 inHg. For health planning, your local baseline and rate of change are more useful than one universal "normal" number.