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NASA satellite precipitation data is made freely available to all researchers who wish to use it. Visit this section for a directory of data products, documentation, training materials and more.

GPM & TRMM Data Directory

1997 - 2015

2014 - Present

NASA’s Global Precipitation Measurement Mission (GPM) uses satellites to measure Earth's rain and snowfall for the benefit of mankind. Launched by NASA and JAXA on Feb. 27th, 2014, GPM is an international mission that sets the standard for spaceborne precipitation measurements. Using a network of satellites united by the GPM Core Observatory, GPM expands on the legacy of the Tropical Rainfall Measuring Mission (TRMM) by providing high quality estimates of Earth’s rain and snowfall every 30 minutes. Learn More 

GPM Applications

Learn how GPM datasets are being used by government agencies and other organizations around the world to study natural disasters, public health, freshwater resources, and a variety of other application areas.

Learn more about GPM Applications

Extreme Weather News

Latest half-hourly IMERG Early Run map of global precipitation

Near Real-time IMERG

Latest Half-hour of Earth's Precipitation

The Integrated Multi-satellitE Retrievals for GPM product combines precipitation observations using infrared and microwave sensors from a constellation of partner satellites, united by the GPM Core Observatory, to provide near real-time half-hourly precipitation estimates at 10km resolution for the entire globe.

Related Projects

NASA Landslides Logo


NASA scientists are building a catalog of landslides so we can be prepared when the next natural disaster strikes. Join our citizen science project to help track landslides and improve prediction models.

NASA Disasters Logo

NASA Disasters Program

The NASA Earth Applied Science Disasters program area promotes the use of Earth observations to improve prediction of, preparation for, response to, and recovery from hazards and disasters.

GLOBE Program Logo

GLOBE Observer

An international citizen science initiative to understand our global environment. Your observations help scientists track changes in clouds, water, plants, and other life in support of climate research.

Upcoming Events

June 13, 2024

GPM 10-in-10 Webinar: Precipitation Extremes and Impacts


July 11, 2024

GPM 10-in-10 Webinar: Remote Sensing

Aug. 1, 2024

GPM 10-in-10 Webinar: Precipitation Data