Missouri

Utah

British Columbia

Manitoba

New Brunswick

Ontario

Saskatchewan

California

Colorado

Illinois

Indiana

Iowa

Maine

Maryland

Michigan

Nebraska

Nevada

New York

North Dakota

Ohio

Oregon

Pennsylvania

South Dakota

Virginia

Washington

West Virginia

Québec

None

<p>A map of North America with a 32 degrees Fahrenheit (0 degrees Celsius) isotherm marked by an blue dashed curve. The isotherm starts in British Columbia passes through Nevada, Colorado, Manitoba, Illinois, Virginia, Michigan, and ends in Quebec.</p>

<p>Line indicating the surface position of air at 32°F (0°C)</p>

32°F (0°C)

North America

NOAA

Anthropogenic Biomes

Areas at Risk of Soil Degradation

Average Annual Precipitation

Biomes

Climate Zones

Global Mean Temperature, January

Global Mean Temperature, July

Global Surface Warming: Worst-Case Projections (NASA)

Insolation

Land Cover

Major Soil Orders

Prevailing Agricultural Practices

World Elevations