Temperatures on the moon are very hot in the daytime, about 100 degrees C. At night, the lunar surface gets very cold, as cold as minus 173 degrees C. This wide variation is because Earth’s moon has no atmosphere to hold in heat at night or prevent the surface from getting so hot during the day.
A single “day” on the moon lasts about 28 Earth days, meaning the lunar daytime is nearly two Earth weeks long.
Today (August 27th 2013), the hottest place on Earth is Palm Springs, where some dear friends of mine are living – I trust. The temperature has reached 134° Fahrenheit, which corresponds to 56.67°Centigrade. This is reckoned to be an all time record.
Just imagine then living on the Moon, where the daytime temperature can reach 123C and the nighttime will drop to MINUS 153C. 123C is more than twice as hot as our hottest day recorded.
On the question of temperature I would like to quote an email that I received from atmospheric physicist, James A. Peden, 4.12.2011: –
“Temperature” is based on a measure of the energy of molecular motion… and indeed,
the temperature at the edge of our atmosphere is quite “hot” … because the molecules,
albeit few in number, have a high kinetic energy … thus technically have a high “temperature”.
However, there are very few of them. Therefore the “heat content” is very small….
resulting in very few calories per unit volume. At sea level, there is a pretty good
correlation between temperature and heat content: a kettle of boiling water has both a
high temperature and high heat content.
But at the edge of space, with very few molecules per unit volume, you have the
seemingly paradoxical condition of both high temperature and low heat content.