Current understanding of the ice accretion process is based largely on icing wind tunnel tests. Turbulent fluctuations in the freestream, which are different in the wind tunnel than in flight, have been identified as having potentially important effects on the results of tests performed in icing tunnels. The turbulence intensity level in icing tunnels with the spray cloud turned off had been previously measured and found to be quite high due to the lack of turbulence reducing screens, and to the presence of the spray system. However, the turbulence intensity level in the presence of the spray cloud had not been measured. In this study, a method for making such measurements was developed and used to study the effects of the spray cloud on the turbulence level in the NASA Lewis Icing Research Tunnel (IRT). Turbulent velocity fluctuations were measured using hot-wire sensors. Droplets striking the wire resulted in distinct spikes in the hot-wire voltage which were removed using a digital acceleration threshold filter. The remaining data were used to calculate the turbulence intensity. Using this method, the turbulence intensity level in the IRT was found to be highly dependent on nozzle air pressure, while other factors such as nozzle water pressure, droplet size, and cloud liquid water content had little effect.