Since 1992, the meteorological observatory Neumayer continuously operates a ceilometer to monitor cloud ceiling above the station. Up until 2009, only the lowest detected cloud level was archived. With the inauguration of Neumayer Station III full data records are available. Besides auto-detected cloud levels the instrument records backscatter profiles of the laser beam. This compilation summarises all ceilometer raw data available from Neumayer Station. All data published here is left as recorded, no quality control was applied.