DS-019Climate & EarthGlobalHISTORICAL DATA
Copernicus C3S / ECMWF
Copernicus ERA5
Eight decades of hourly global weather reanalysis
A consistent hourly weather archive that combines observations with a physical model across temperature, wind, precipitation, soil, waves, and many other variables.
“How have the most extreme weather days in your city changed since 1940?”
UPDATE
Daily · about 5-day lag; final release 2–3 months later
COVERAGE
1940–present · global 0.25° grid
ACCESS
Free account / CDS API key
LICENSE SUMMARY
CC BY 4.0
AVAILABLE FORMATS
GRIB · Zarr · STAC · CDS API
LICENSE
CC BY 4.0 as marked in the ERA5 catalog entry
ATTRIBUTION
Cite DOI 10.24381/cds.adbb2d47, state “Generated using Copernicus Climate Change Service information [Year],” and indicate changes.
PRE-PUBLISH CHECK
Review the official license basis ↗Recheck the catalog's version, known issues, and citation guidance; distinguish ERA5T at about five days' latency from the final release two to three months later.