Global climate data atlas consisting of a data base and a software for data access and visualization. The data base contains more than 1200 station data sets distributed all over the globe. Station data consist of 16 monthly mean data sets: Temperature: mean, min., max., extreme min. and max. rel. humidity, precipitation: mean, min., max., day maximum, days with precipitation, potential evaporation, global radiation, sunshine hours, wind speed and direction. Once a station is selected, its data are displayed graphically on the screen, and the data can be exported for other applications. A graphical user interface with topographic and climatic maps makes the tool easy to handle.