This dataset contains data from data-logging tipping bucket rain gauges deployed during the 2015 Chilean Coastal Orographic Precipitation Experiment (CCOPE-2015). Information on the overall goals of CCOPE-2015, deployment strategy, and summary of rain gauge data are found in Massmann, et al. (2017). Many of these sites are the same as used during the earlier Andean Frontal Experiment, AFEX (Garreaud, et al., 2016) as summarized in Massmann, et al. (2017). The rain gauges were located on a NW-SE transect along the Nahuelbuta Mountains in coastal southern Chile. Northwest winds prevail in winter storms. Note, data from two additional sites with CCOPE-2015 tipping bucket rain gauges attached to automatic weather stations (CRL, ARA in Table 1) are not included in this dataset and are instead included in the CCOPE-2015 surface meteorology dataset. Please see the readme file for more information about this dataset.