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Average Distribution of Dew Point Temperatures, January

United StatesPhysical Environment

Average January dew points for the contiguous United States

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A map displays the average distribution of dew point temperatures across North America in January, using different colors to represent various temperature ranges.

Less than 20 degrees Fahrenheit (Red): Covers most of the United States, excluding the southern and coastal areas, extending into Canada and northern Mexico.

20 degrees Fahrenheit (Blue): North Texas, Oklahoma, Arkansas, Tennessee, North Carolina, Kentucky, eastern Washington, Eastern Oregon, Idaho, and some part of Utah.

30 degrees Fahrenheit (Purple): Most of California along the coast, western Oregon, western Washington, central Texas, northern Louisiana, Alabama, Georgia, and South Coalinga.

40 degrees Fahrenheit (Orange): Covers parts of southern Texas, Louisiana, south of Georgia and north of Florida.

50 degrees Fahrenheit (Yellow): Southcentral region of Florida.

55 degrees Fahrenheit (Green): Restricted to the southern tip of Florida.

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Average Distribution of Dew Point Temperatures, January

Irrigated Crop Intensity

Electricity from Hydroelectric Power

Poor Urban Air Quality

Less than 20°F

20–29°F

30–39°F

40–49°F

50–54°F

55–59°F

Class

Rank

Percent

Class

Rank

Percent of electricity generation

Regina

Houston

Philadelphia

Oklahoma City

San Antonio

Boulder

Wichita

Portland

Irvine

Minneapolis

Boise

Winnipeg

Spring Hill

Greeley

St. Louis

Detroit

West Palm Beach

Columbus

Augusta

McAllen

Topeka

Las Cruces

Bakersfield

Oceanside

Reno

Indianapolis

Stockton

Baton Rouge

Glendale

Salinas

Trenton

Aurora

Modesto

Nogales

Rock Island

Fresno

Covington

69.8%31.1%23.3%22.8%21.0%7.07%111
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