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Cold semi-arid (steppe) climate

Köppen Code: BSk
B : Arid
S : Steppe
k : Cold


View Index of Climate Classification Types

Steppe climates are intermediates between desert climates (BW) and humid climates in ecological characteristics and agricultural potential.

To determine if a location has a semi-arid climate, the precipitation threshold must first be determined. Finding the precipitation threshold (in millimeters) involves first multiplying the average annual temperature in °C by 20, then adding 280 if 70% or more of the total precipitation is in the high-sun half of the year (April through September in the Northern temperate zone, or October through March in the Southern), or 140 if 30%–70% of the total precipitation is received during the applicable period, or 0 if less than 30% of the total precipitation is so received. If the area's annual precipitation is less than the threshold but more than half the threshold, it is classified as a BS (steppe climate).

Cold semi-arid climates have a mean annual temperature below 18°C, or a mean temperature of no more than 0°C in the coldest month.

Related climatic classifications
BShHot semi-arid (steppe) climate
BWhHot deserts climate
BWkCold desert climate


A selection of mineral localities found in this climate zone.

Silver Coin Mine, Valmy, Iron Point Mining District, Humboldt Co., Nevada, USA
Quiruvilca Mine (La Libertad Mine; ASARCO Mine), Quiruvilca District, Santiago de Chuco Province, La Libertad, Peru
Shattuck Mine (Shattuck-Denn Mine; Shattuck-Arizona Mine; Denn Mine), Bisbee, Cochise County, Arizona, USA
Owyhee Dam, Lake Owyhee State Park, Malheur Co., Oregon, USA
San Quintin, Ensenada Municipality, Baja California, Mexico
Mex-Tex Mine, Bingham, Hansonburg District, Socorro Co., New Mexico, USA
Kambalda, Coolgardie Shire, Western Australia, Australia
Delicias Mine, Rancho Los Pocitos, Ensenada Municipality, Baja California, Mexico
Cerro de Potosí (Cerro Rico), Potosí City, Potosí, Bolivia
Omega Mine (Omega tunnel; Omega Extension Mine), Monument Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima Co., Arizona, USA
United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde Mining District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA
St Peters Dome, Cheyenne Mining District (St. Peters Dome Mining District), El Paso Co., Colorado, USA
Erupción Mine (Ahumada Mine; Erupción-Ahumada Mine), Los Lamentos Mts (Sierra de Los Lamentos), Ahumada Municipality, Chihuahua, Mexico
Charcas, Charcas Municipality, San Luis Potosí, Mexico
132 North Ni Mine (Mount Edwards Mine), Widgiemooltha, Coolgardie Shire, Western Australia, Australia
San Martín Mine, San Martín-Sabinas District, San Martín, Sombrerete Municipality, Zacatecas, Mexico
San Carlos, San Carlos Indian Reservation, Gila Co., Arizona, USA
Meikle Mine, Goldstrike Mines, Bootstrap Mining District, Elko Co., Nevada, USA
Paratoo copper mine, Yunta, Olary Province, South Australia, Australia
Hillside Mine (Happy Jack MS 920 claim; Camp MS 919 claim; Seven Stars MS 916 claim), Bozarth Mesa, Bagdad, Eureka Mining District, Yavapai Co., Arizona, USA
Catorce (Real de Catorce), Catorce Municipality, San Luis Potosí, Mexico
Beryllium Virgin claim, Paramount Canyon, Sierra Co., New Mexico, USA
Palos Verdes Hills (Palos Verdes Cliffs), Palos Verdes peninsula, Los Angeles Co., California, USA
Rodalquilar, Níjar, Almería, Andalusia, Spain
Calumet and Arizona Mine (Junction Mine; Junction shaft), Calumet and Arizona group of claims (Calumet and Arizona Mining Company group of claims), Bisbee, Cochise County, Arizona, USA
 
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