Barometric Pressure in Florissant, United States 
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The pressure in Florissant, Missouri, United States is predicted to rapidly drop over the next few hours, with an average pressure of 992.6 hPa today, which is lower than normal.
Weather prediction: Expect storm force weather
The daily total fluctuation in pressure in Florissant is 10.9 hPa, with a low of 986.1 hPa and a high of 997 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Florissant hour by hour and stay informed about how it will change over the next 6 hours.
The weather in Florissant has big changes in barometric pressure because of its location in the Midwest. Storms often bring low pressure, while fair weather brings high pressure.
Florissant's elevation of about 500 feet above sea level and its flat landscape affect atmospheric pressure. Cold air from Canada and warm air from the Gulf of Mexico meet here, causing pressure changes.
In winter, high pressure dominates, bringing cold and dry air. In summer, low pressure prevails, leading to hot and humid weather. Spring and fall see more moderate pressure.
Florissant has a humid continental climate, which means big temperature and pressure swings throughout the year. This leads to varying weather conditions that affect how people feel.