How do you find density of air given only temperature and elevation? If the temperature is $100$ degrees F$,$ the elevation is $1,490$ ft$,$ and the air is assumed to be dry, how do you go about calculating air density? I found the density to be $1\mathrm{.}08$ kg$/$m$^3(0\mathrm{.}067$ lbm$/$ft$^3)$ but I would like to check if my answer is correct.