A new digital world map of the Köppen-Geiger climate classification has been developed, based on updated global temperature and precipitation data from the Climatic Research Unit (CRU) and the Global Precipitation Climatology Centre (GPCC). This map, valid for the second half of the 20th century, provides a more accurate representation of climate zones than previous versions. The Köppen-Geiger classification, first introduced by Wladimir Köppen in 1900 and updated by Rudolf Geiger in 1961, remains the most widely used climate classification. It is based on vegetation patterns and climate zones, with the first two letters of the classification indicating the main climate type, and the third letter indicating additional temperature or precipitation conditions. The new map uses monthly temperature data from CRU TS 2.1 and monthly precipitation data from VASClimO v1.1 to calculate the climate classification. The data covers global land areas (excluding Antarctica and Greenland) and is available for scientific use. The map shows 31 climate classes, with some classes not occurring in certain regions. The map is compared to historical hand-drawn maps and shows more regional details due to its high spatial resolution. The map and underlying data are publicly available through the GPCC and the University of Veterinary Medicine Vienna. The Köppen-Geiger classification is still widely used in climate research and is considered relevant for future studies. The authors conclude that the classification is likely to remain in use for another 100 years, as it meets the needs of modern climate scientists. The updated map and data provide a valuable resource for climate research and modeling.A new digital world map of the Köppen-Geiger climate classification has been developed, based on updated global temperature and precipitation data from the Climatic Research Unit (CRU) and the Global Precipitation Climatology Centre (GPCC). This map, valid for the second half of the 20th century, provides a more accurate representation of climate zones than previous versions. The Köppen-Geiger classification, first introduced by Wladimir Köppen in 1900 and updated by Rudolf Geiger in 1961, remains the most widely used climate classification. It is based on vegetation patterns and climate zones, with the first two letters of the classification indicating the main climate type, and the third letter indicating additional temperature or precipitation conditions. The new map uses monthly temperature data from CRU TS 2.1 and monthly precipitation data from VASClimO v1.1 to calculate the climate classification. The data covers global land areas (excluding Antarctica and Greenland) and is available for scientific use. The map shows 31 climate classes, with some classes not occurring in certain regions. The map is compared to historical hand-drawn maps and shows more regional details due to its high spatial resolution. The map and underlying data are publicly available through the GPCC and the University of Veterinary Medicine Vienna. The Köppen-Geiger classification is still widely used in climate research and is considered relevant for future studies. The authors conclude that the classification is likely to remain in use for another 100 years, as it meets the needs of modern climate scientists. The updated map and data provide a valuable resource for climate research and modeling.