The National Weather Service's Climate Prediction Center (CPC) produces a Global Unified Daily Precipitation product from 1979-present.

The Global Gridded Standardized Precipitation Index (SPI) is derived from the CMORPH daily dataset and includes timescales of 1, 3, 6 and 9 months.  The NOAA CMORPH precipitatio

The Global Gridded Standardized Precipitation Index (SPI) is derived from the CMORPH daily dataset and includes timescales of 1, 3, 6 and 9 months.  The NOAA CMORPH precipitatio

The GPCC provides unrestricted access to its monthly gridded precipitation data sets for climate monitoring purposes and related research.

NASA GPM-IMERG: The Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm combines information from the GPM satellite constellation to estimate precipitation

ERA5 is the fifth generation ECMWF atmospheric reanalysis of the global climate covering the period from January 1940 to present.

NASA GPM-IMERG: The Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm combines information from the GPM satellite constellation to estimate precipitation

ERA5 is the fifth generation ECMWF atmospheric reanalysis of the global climate covering the period from January 1940 to present.

This Standardized Precipitation Index (SPI) is derived from the Global Precipitation Climatology Centre's gridded monthly precipitation dataset.

The NCEI Past Weather Tool allows users to search for historical temperature,