Why does moon have very cold and very high temperature variations, e.g., from -190°C to 110°C even though it is at the same distance from the sun as the Earth is?

Atmosphere of Earth is a bad conductor so acts as a temperature buffer. However, moon lacks an atmosphere around it. Therefore, moon gets heated up as sun rays fall on its surface. It cools down drastically when there is no sunlight, causing wide fluctuations in its temperature.