Theoretical calculations of the diurnal variation of atomic hydrogen in the thermosphere are presented that simultaneously evaluate the effects of thermosphere rotation, thermal escape, charge exchange with O+ ions, charge exchange with hot Hu+ ions, transport due to winds, and ballistic fluxes in a consistent manner. The first five effects cause a significant departure from the zero net ballistic flux condition. A thermospheric wind with a peak velocity of 50 m s-1 at exobase altitude and a total charge exchange flux varying from 0 to 2¿108 cm-2 s-1 are found to be consistent with the observations.