 In the Peruvian Andes spatially and temporally coherent precipitation information is a prerequisite for ongoing climate change adaptation projects in the fields of water resources, disasters, and food security. Large biases are identified in both investigation areas and the estimation of daily precipitation amounts. The occurrence of strong precipitation events was well assessed, but their intensities were underestimated. This article was authored by M. L. M. Schill, M. Rohrer, C. H. Huggjell, and others.