National Oceanic and Atmospheric Administration
https://psl.noaa.gov/data/gridded/data.ncep.reanalysis.html

National Oceanic and Atmospheric Administration
https://psl.noaa.gov/data/gridded/data.precl.html

National Oceanic and Atmospheric Administration
https://www.esrl.noaa.gov/psd/data/gridded/data.godas.html