Some results of the investigation of the atmospheric radiation regime in spring of 1993 are presented. The behavior of variability of hourly, diurnal, and monthly sums of total radiation is analyzed as compared with the long-term data of actinometric network. Peculiarities of variations of spectral direct radiation are considered for a number of wavelengths in the visible and IR spectral ranges. The estimates are presented of interconnections between the incoming radiation fluxes and the atmospheric moisture content and transmission.