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MapMaster 3

Average Annual Precipitation

WorldPhysical Environment

Global distribution of average annual precipitation

USGS

A map depicts the average annual precipitation worldwide. Highest precipitation areas (dark blue), are notably in western Brazil, Guinea, and Indonesia. Lowest precipitation (light blue) areas include northern Africa, Greenland, and central Australia.

Most of Asia, the southwestern and northeastern regions of North America, the western coastal region of South America, Iceland, the eastern and northwestern parts of Australia, and the extreme southern region of South Africa receive precipitation ranging from 10 to 19 inches shaded in light blue. Northern regions of Africa, Greenland, Uzbekistan, Kazakhstan, central Australia, and much of Russia, including its northern, southern, and eastern parts, receive around 10 inches of precipitation shaded in very light blue. Much of India, Nepal, eastern China, central Africa including Nigeria, Ethiopia, and Kenya, central North America, Mexico, and the eastern part of Canada receive 20 to 39 inches of precipitation. Central Africa and the eastern region of India, including South Asian regions, receive 40 to 59 inches of precipitation. Southern and southeastern Brazil, the Democratic Republic of Congo, Vietnam, and Japan receive 60 to 79 inches of precipitation. The western part of Brazil, Guinea, Sierra Leone, Liberia, the extreme northern region of Madagascar, Indonesia, Papua New Guinea, Costa Rica, and some regions in Central America receive over 80 inches of precipitation shaded in dark blue.

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Average Annual Precipitation

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80 and over inches

60–79 inches

40–59 inches

20–39 inches

10–19 inches

Under 10 inches

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

Austronesian

Alaska
0.389%0.159%0.114%39.7%25.1%
Utah
52.3%8.61%
Yukon
3.35%17.0%71.1%8.49%
Northwest Territories
53.7%0.342%
District of Columbia
100%
New Hampshire
82.5%17.5%
Rhode Island
3.94%
Vermont
0.378%99.6%
Washington
0.217%20.8%35.5%3.68%
Wyoming
94.9%5.08%
Nunavut
1.91%11.2%0.496%
Montana
2.47%97.5%
North Dakota
3.12%96.9%
Kentucky
99.1%0.934%
Nova Scotia
0.183%
Virginia
91.0%8.86%
Delaware
99.1%
Prince Edward Island
98.4%
Mississippi
23.9%76.0%
West Virginia
78.4%21.6%
Nebraska
62.3%37.7%
Missouri
75.4%24.6%
North Carolina
1.70%0.120%
Oregon
23.8%6.51%41.2%0.940%
New Brunswick
23.7%0.147%
Alabama
9.73%69.9%
Wisconsin
100%
British Columbia
0.306%0.252%17.8%43.0%
Newfoundland and Labrador
21.6%3.34%0.586%
South Carolina
7.80%92.1%
Alberta
8.49%91.5%
Connecticut
99.9%
Pennsylvania
59.2%40.8%
Massachusetts
0.195%8.01%
New York
2.89%61.4%
Maryland
0.157%7.94%
Québec
0.475%72.8%16.1%
Tennessee
100%
Ontario
94.0%6.00%
Arkansas
100%
South Dakota
18.0%82.0%
Iowa
100%
Arizona
48.7%3.90%
Florida
6.59%0.114%
Idaho
22.8%66.2%10.9%
Maine
0.284%76.3%
Saskatchewan
100%1
Texas
22.8%54.5%22.2%0.422%1
Louisiana
0.204%57.2%
New Mexico
80.4%19.5%
Kansas
17.1%78.3%4.62%
New Jersey
99.7%1
Michigan
100%
Colorado
11.2%88.8%
Nevada
0.983%29.3%69.7%
Georgia
33.6%66.3%
Manitoba
4.00%96.0%
Oklahoma
36.1%61.0%2.99%
California
4.72%56.2%31.3%1.42%
Ohio
32.0%68.0%
Indiana
25.2%74.8%
Minnesota
100%
Illinois
23.9%76.1%
Hawaii
58.7%87.4%
0.18.0