Raw data used for figures appearing in Journal of Fluid Mechanics article "Self-similar Properties of Decelerating Turbulent Jets." Prepared jointly at the University of Edinburgh, Edinburgh, United Kingdom, EH9 3DW and the University of Southampton, Southampton, United Kingdom, SO17 1RB Research Group of D. Shin (d.shin@ed.ac.uk) and E.S. Richardson (e.s.richardson@soton.ac.uk) Data from Direct Numerical Simulations conducted between 2013-2015. Creative Commons BY-ND-NC license. Data relate to the article appearing in Journal of Fluid Mechanics article "Self-similar Properties of Decelerating Turbulent Jets." by Donghyuk Shin, Andrew J Aspden, Edward Richardson. The data file contains one movie file for Figure 2a and other text files relating to each figure in the article, numbered according to the figure number. In each text file, data is in column format with the first column being the x-axis values and the second colum being the y-axis values. Different lines in each figure are separate by ten empty lines.