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Barometric Pressure in Mason City, Iowa, US


0000 hPa
00.00 inHg


00.0 ℃
0.00 ℉


00.0 m/s
00.0 mph


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The pressure in Mason City, United States United States is predicted to drop over the next few hours, with an average pressure of 1012.3 hPa today, which is considered normal.


Weather prediction: Expect wet, unsettled weather and a strong breeze

The daily total fluctuation in pressure in Mason City is 5.5 hPa, with a low of 1010.2 hPa and a high of 1015.7 hPa. The daily average here is lower than in most cities around the world.



The barometric pressure in Mason City, Iowa averages around 30.12 inches. This is slightly above the national average. It fluctuates throughout the year.

Barometric pressure

In winter, the pressure is usually higher, around 30.20 inches. This is due to cold air from Canada. In summer, the pressure is lower, around 30.05 inches. This is due to warm air from the Gulf of Mexico.

Mason City is situated in a flat to gently rolling prairie landscape. The city is surrounded by farmland and forests. This flat terrain allows air masses to move freely.

The nearby Winnebago River has a minimal impact on the local pressure. The river's effect is mostly felt in terms of humidity. Moist air from the river can lead to increased precipitation.


* The barometric pressure information for Mason City, Iowa, United States on this page is for educational purposes only. We are not responsible for its accuracy or reliability. This information is not medical advice. Consult a health professional for medical concerns and do not rely on this site for medical decisions.