What is the temperature on Mars?
Climate of Mars
−63°C (210K; −81°F)
Differing in situ values have been reported for the average temperature on Mars,[21] with a common value being −63°C (210K; −81°F).[22][23]  Surface temperatures may reach a high of about 20°C (293K; 68°F) at noon, at the equator, and a low of about −153°C (120K; −243°F) at the poles.[24] Actual temperature measurements at the Viking landers' site range from −17.2°C (256.0K; 1.0°F) to −107°C (166K; −161°F). The warmest soil temperature estimated by the Viking Orbiter was 27°C (300K; 81°F).[25] The Spirit rover recorded a maximum daytime air temperature in the shade of 35°C (308K; 95°F), and regularly recorded temperatures well above 0°C (273K; 32°F), except in winter.[26]