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Average Distribution of Dew Point Temperatures, January

United StatesPhysical Environment

Average January dew points for the contiguous United States

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				Years of Schooling			Nitrogen Oxide (NOₓ) Emissions
Less than 20°F	20–29°F	30–39°F	40–49°F	Class	Rank	Years	Class	Rank	Kilotons per year








45.0%	11.1%	5.76%	1.23%

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