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Differing in situ values have been reported for the average temperature on Mars, [23] with a common value being −63 °C (210 K; −81 °F). [24] [25] Surface temperatures may reach a high of about 20 °C (293 K; 68 °F) at noon, at the equator, and a low of about −153 °C (120 K; −243 °F) at the poles. [26]
[3] [5] [2] The atmosphere of Mars is much thinner and colder than Earth's having a max density 20g/m 3 (about 2% of Earth’s value) with a temperature generally below zero down to -60 Celsius. The average surface pressure is about 610 pascals (0.088 psi) which is 0.6% of the Earth's value. [2]
The temperature at that time: 37 degrees Fahrenheit (2.8 degrees Celsius). [2] On August 21, 2012, one of two anemometers returned data with errors. After testing it was concluded that it was broken, probably hit by a rock on descent. [7] Martian winds can still be detected with the other sensor. [7]
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Mars is covered in dry iron oxide dust, has seasonal global dust storms, with a duration of about a month. Mars' average global temperature is −81 °F (−63 °C; 210 K), Earth's average global temperature is 57 °F (14 °C; 287 K). The seasonal Martian polar ice caps are mostly dry ice, frozen carbon dioxide atmosphere (CO 2). [23]
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[9] [26] There can be large temperature swings on Mars, for example at the equator it may reach 70 degrees F (20 degrees C) in the daytime but then go down to minus 100 degrees F (−73 C) at night. [27] Examples of Mars surface temperatures: [27] Average −80 degrees Fahrenheit (−60 degrees Celsius).