Frequency distribution of model lower temperature, T_ℓ, required to fit the molecular gas mass using the Galactic ﹩{\alpha }_{\mathrm{CO},\mathrm{Gal}}﹩. On average the value for T_ℓ is ﹩{T}_{{\ell }}^{\star }=49﹩ K for our training sample. The below histogram (in blue) is plotted excluding warm galaxies with high T_s. However, no change in the average value, ﹩{T}_{{\ell }}^{\star }﹩, is found including or excluding galaxies with warm gas excess.