Note: This page was originally sourced from our Blogger page: http://ncarrda.blogspot.com/2019/11/era5-025-degree-monthly-mean-data.html

ERA5 0.25° gridded monthly means spanning 1979-2018 in netCDF4/HDF5 format are available for download and subsetting via

ERA5 Reanalysis (Monthly Mean 0.25 Degree Latitude-Longitude Grid)

There are 227 parameters in 6 groups including pressure level and surface analysis, and surface forecast data. Data prior to 1979 will be added pending public release by ECMWF, and similarly this dataset will be updated post-2018.