Climate and Structure
The Dasht-e Kavir's climate is almost rainless and the area is very arid. Temperatures can reach 50 °C in summer, and the average temperature in January is 22 °C. Day and night temperatures during a year can differ up to 70 °C. Rain usually falls in winter.
The desert soil is covered with sand and pebbles; there are marshes, lakes and wadis. The hot temperatures cause extreme vaporization, which leaves the marshes and mud grounds with large crusts of salt. Heavy storms frequently occur and they can cause sand hills reaching up to 40 m in height. Some parts of Dasht- e Kavir have a more steppe-like appearance.
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