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Barometric Pressure Hourly Averages

Barometric pressure is the force per unit area (pressure) exerted by the atmosphere as a consequence of gravitational attraction exerted upon the "column" of air lying directly above a specific point. These values are expressed in millibars. The millibar is a metric unit of pressure commonly used in aviation and meteorology. One millibar is equal to 100 Newtons/meter2 (100 pascals).

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Barometric Pressure Hourly Averages for Thursday, August 17, 2017.
measured in millibars
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:00
Piedmont - all times are in EST
19 1010.71010.51010.31010.21010.41010.71011.11011.11011.21010.91010.81010.51010.21009.71008.71007.91008.01007.91007.91008.11008.41008.1 NA 19 1 Virginia DEQ
Maximum values for the day are bold within the table. Minimum values are bold italic.

PLEASE NOTE: This data has not been verified by the Virginia DEQ and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from Virginia DEQ ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.