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Atlas (Beta)

High- and Low-Pressure Zones, January

WorldPhysical Environment

Locations of high- and low-atmospheric pressure at mean sea level during January.

A map illustrates high- and low-pressure zones worldwide for January, with high-pressure zones marked in red and low-pressure zones in blue.

High-Pressure Zones are found in Western North America (1,022 millibars), Northwest Africa (1,024 millibars), North-central Asia (1,044 millibars), Southeast Pacific (1,018 millibars), South Atlantic (1,022 millibars), South Indian Ocean (1,022 millibars)

Low-Pressure Zones are found in North Pacific near the Aleutian Islands (984 millibars), North Atlantic near Greenland and Iceland (992 millibars), along the equator in the Central Pacific Ocean, Central Africa, and Western Pacific Ocean, and around the coasts of Antarctica (three lows at 980 millibars).

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High- and Low-Pressure Zones, January	Population Undernourished			Crude Birth Rate			Unauthorized Immigrant Population (U.S.)			Electricity Generation from Wind Power			Major Territorial Acquisitions (U.S.)
High	Class	Rank	Percent	Class	Rank	Live births per 1,000 people	Class	Rank	Millions people	Class	Rank	Billion kilowatt hours (kWh)	Extent of U.S., 1803	Louisiana Purchase, 1803	West Florida, 1810–1813	British Cession, 1818	East Florida, 1819	Northern Maine, 1842	Texas Annexation, 1845	Oregon Country, 1846	Mexican Cession, 1848	Gadsden Purchase, 1853	Alaska, 1867	Hawaii, 1898












1													91.6%	79.0%	7.81%	30.8%	98.3%	16.6%	50.1%	57.7%	66.4%	12.6%	63.8%	91.5%

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