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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 Monday, November 24, 2014.
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
CT-ME-MA-NH-RI-VT - all times are in EST
32  1 1016.71016.41015.61015.41015.61015.11015.21014.5 LIM LIM LIM LIM LIM 32  1 1 Oth Gov
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon
NJ-NY-PR-VI - all times are in EST
1035  2 995.9994.1 LIM LIM LIM LIM LIM LIM982.6982.2982.2982.0981.7 1035  2 1 Oth Gov
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon
KY-TN-NC-SC-MS-AL-GA-FL - all times are in EST
7  3 942.4942.5942.8942.8942.6943.0943.7943.9944.3944.6945.3945.2945.0 7  3 1 Oth Gov
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon
CA-NV-AZ-HI-AS-GU - refer to the first data column for each site's specific time zone
PST1018  4 898.4898.7898.2898.2898.2899.0900.0900.7901.4901.9901.7901.0900.4 1018  4 1 Oth Gov
PST1023  5 884.6884.5884.6884.5884.0883.5884.4886.9887.8886.4885.9885.2884.5 1023  5 1 Oth Gov
PST1026  6 883.5883.5883.7884.2884.6885.4886.0886.5887.1887.2887.1886.7886.2 1026  6 1 Oth Gov
PST1028  7 890.1890.0888.9888.8889.1889.7890.7891.5892.4892.7892.9892.3892.4 1028  7 1 Oth Gov
MST1030  8 970.9971.1971.4971.3971.4971.5972.1972.8973.2973.9973.8973.2972.4 1030  8 1 Oth Gov
PST1033  9 889.0888.9889.1889.0889.2889.9889.8889.8890.6891.0890.2889.6889.0 1033  9 1 Oth Gov
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon
WA-OR-ID-AK - all times are in PST
3  10 967.6968.7969.6970.0970.7971.7972.3972.8973.4973.8973.9973.5972.9 3  10 1 Oth Gov
13  10 982.3983.3984.0984.3984.9985.9986.4986.9987.6988.4988.3987.9987.4 13  10 1 Oth Gov
14  10 897.5898.6899.4899.8900.3901.3901.7902.0902.5902.9902.8902.6902.1 14  10 1 Oth Gov
1036  11 1019.01019.01019.01018.91018.61018.51018.61018.91019.31019.81020.21019.81018.8 1036  11 1 Oth Gov
Notes:
- These sites are maintained and operated by Passamaquoddy Tribe at Pleasant Point.
- These sites are maintained and operated by St. Regis Mohawk Tribe.
- These sites are maintained and operated by Eastern Band of Cherokee Indians.
- These sites are maintained and operated by the Lone Pine Paiute-Shoshone Tribe.
- These sites are maintained and operated by Bishop Paiute Tribe EMO-Air.
- These sites are maintained and operated by Pyramid Lake Paiute Tribe.
- These sites are maintained and operated by Fort Independence Paiute Tribe.
- These sites are maintained and operated by Fort McDowell Yavapai Nation.
- These sites are maintained and operated by Big Pine Band of Owens Valley Paiute Shoshone Indians of the Big Pine Reservation.
10 - These sites are maintained and operated by Nez Perce Tribe ERWM.
11 - These sites are maintained and operated by Confederated Tribes of the Coos-Lower Umpqua-Suislaw Indians.

TREX does not certify the validity or quality of data it hosts from other monitoring entities.
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 TREX 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 TREX 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.