You can download the data here:


smaller datasets (reduced to 2 bit integers) recommended for users which do not need the full floating point accuracy or older computers can be found here:



With the download of this data you acknowledge to cite the data using the following citation:

Karger, D.N., Conrad, O., Böhner, J., Kawohl, T., Kreft, H., Soria-Auza, R.W., Zimmermann, N.E, Linder, H.P. & Kessler, M. (2016) Climatologies at high resolution for the Earth land surface areas. arXiv:1607.00217 [physics].


Karger, Dirk Nikolaus; Conrad, Olaf; Böhner, Jürgen; Kawohl, Tobias; Kreft, Holger; Soria-Auza, Rodrigo Wilber; Zimmermann, Niklaus E.; Linder, H. Peter; Kessler, Michael (2016): CHELSA climatologies at high resolution for the earth’s land surface areas (Version 1.1). World Data Center for Climate. doi:10.1594/WDCC/CHELSA_v1_1.

88x31CHELSA Version 1.1 is licensed under a Creative Commons Attribution 4.0 International License.

CHELSA is an ongoing research project and we are updating it continuously. There might still be problems with the datasets and we are happy for any reports of bugs. Known issues can be found here

Projection parameters:

Geographic Coordinate System [EPSG 4326]
proj4string= [+proj=longlat +datum=WGS84 +no_defs ]

Mean annual values, reference period 1979-2013. Version 1.1

Units: temperature [Celsius], precipitation [mm/year] (gauge corrected)

Mean annual temperature Version 1.1
Mean annual precipitation Version 1.1

Mean monthly temperature values, reference period 1979-2013. Version 1.1

Mean january temperature
Mean february temperature
Mean march temperature
Mean april temperature
Mean may temperature
Mean june temperature
Mean july temperature
Mean august temperature
Mean september temperature
Mean october temperature
Mean november temperature
Mean december temperature

Maximum monthly temperature values (Maximum based on 6hr measurement intervals), reference period 1979-2013. Version 1.1

Maximum january temperature
Maximum february temperature
Maximum march temperature
Maximum april temperature
Maximum may temperature
Maximum june temperature
Maximum july temperature
Maximum august temperature
Maximum september temperature
Maximum october temperature
Maximum november temperature
Maximum december temperature

Minimum monthly temperature values (Minimum based on 6hr measurement intervals), reference period 1979-2013. Version 1.1

Minimum january temperature
Minimum february temperature
Minimum march temperature
Minimum april temperature
Minimum may temperature
Minimum june temperature
Minimum july temperature
Minimum august temperature
Minimum september temperature
Minimum october temperature
Minimum november temperature
Minimum december temperature

Mean monthly precipitation values, reference period 1979-2013. Version 1.1

Mean january precipitation
Mean february precipitation
Mean march precipitation
Mean april precipitation
Mean may precipitation
Mean june precipitation
Mean july precipitation
Mean august precipitation
Mean september precipitation
Mean october precipitation
Mean november precipitation
Mean december precipitation

Bioclimatic variables, reference period 1979-2013. Version 1.1

Annual mean temperature [°C]
Mean diurnal range [°C]
Temperature seasonality
Maximum Temperature of warmest month [°C]
Minimum Temperature of coldest month [°C]
Temperature Annual Range [°C]
Mean Temperature of wettest quarter [°C]
Mean Temperature of driest quarter [°C]
Mean Temperature of warmest quarter [°C]
Mean Temperature of coldest quarter [°C]
Annual precipitation amount [mm]
Precipitation of wettest month [mm]
Precipitation of driest month [mm]
Precipitation Seasonality
Precipitation of wettest quarter [mm]
Precipitation of driest quarter [mm]
Precipitation of warmest quarter [mm]
Precipitation of coldest quarter [mm]

Interannual values, reference period 1979-2013. Version 1.1

Interannual temperature variation [SD]
Interannual precipitation variation [SD]

The files are in .zip format and can be unzip with freely available programs such as 7zip




If you having trouble downloading from this site, alternatively the data is also available at the World Data Center for Climate at the German Climate Computing Center (DKRZ) under the following link.(you need to register, but the data is free)

CHELSA – World Data Center for Climate

Monthly data

For now separate layers for each month from 1979-2013 for precipitation and temperature are available on request only as the dataset is quite large.

Older versions
Precipitation without gauge correction (Version before 06.09.2016)


No warranty or liability

CHELSA is provided without any warranty of any kind whatsoever, either express or implied, including warranties of merchantability and fitness for a particular purpose. The creators of the product shall not be liable for incidental, consequential, or special damages arising out of the use of any data.