As I wrote before, you can download monthly climate data layers (rainfall, mean minimum and maximum temperature of the coldest and warmest month respectively) from WorldClim for current and future climate conditions. The latter can only be downloaded in generic grid (raster) format (.bil). Moreover, monthly data layers are compressed in one zip file.
I also posted a small R script that unzips the zip files with monthly data layers downloaded from WorldClim (.bil format) and imports it your current GRASS GIS Location and Mapset. It also corrects erroneous grid cell values as discussed in that post.
I updated the script, hopefully making it easier to use. Continue reading “R script to import WorldClim datalayers in GRASS GIS”