The CRU TS3.10 Dataset includes supplementary information for the paper. It provides web links to data sources, details on database updates for each variable, an analysis of using wind climatology for PET calculations, and supporting plots for trend analysis with CRUTEM4 and GPCCv5. Web links are organized by section, including data sources for temperature, precipitation, and other climate variables. The CRU TS3.10 dataset includes updated monthly mean temperature (TMP), maximum and minimum temperature (TMX/TMN), and monthly total precipitation (PRE) data. The TMP database was updated using WWR data, reducing missing values from 38% to 34%. The TMX/TMN database was expanded with new data from NOAA/NCDC, CLIMAT, and other sources, resulting in over 14,000 series. The PRE database was also expanded, with over 15,000 series after merging with NCDC data. Monthly rain-day counts (WET) were updated using conversion factors from RDY to RD0, with coverage from 1961 to 2004. The VAP and SUNH data were updated using CLIMAT and MCDW sources. The use of a wind climatology (1961-1990) for PET calculations was discussed, showing good agreement with published PET series. Trend analysis compared CRUTEM4 and GPCCv5 data for TMP and PRE, showing consistent trends in most areas. Figures show trend differences and consistency tests for different time periods. The dataset provides detailed information on climate variables and their updates, supporting climate research and analysis.The CRU TS3.10 Dataset includes supplementary information for the paper. It provides web links to data sources, details on database updates for each variable, an analysis of using wind climatology for PET calculations, and supporting plots for trend analysis with CRUTEM4 and GPCCv5. Web links are organized by section, including data sources for temperature, precipitation, and other climate variables. The CRU TS3.10 dataset includes updated monthly mean temperature (TMP), maximum and minimum temperature (TMX/TMN), and monthly total precipitation (PRE) data. The TMP database was updated using WWR data, reducing missing values from 38% to 34%. The TMX/TMN database was expanded with new data from NOAA/NCDC, CLIMAT, and other sources, resulting in over 14,000 series. The PRE database was also expanded, with over 15,000 series after merging with NCDC data. Monthly rain-day counts (WET) were updated using conversion factors from RDY to RD0, with coverage from 1961 to 2004. The VAP and SUNH data were updated using CLIMAT and MCDW sources. The use of a wind climatology (1961-1990) for PET calculations was discussed, showing good agreement with published PET series. Trend analysis compared CRUTEM4 and GPCCv5 data for TMP and PRE, showing consistent trends in most areas. Figures show trend differences and consistency tests for different time periods. The dataset provides detailed information on climate variables and their updates, supporting climate research and analysis.