Science On a Sphere: IMERG Daily Precipitation Climatology (2001 - 2022)

  • Released Thursday, January 23, 2025
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Science on a Sphere Content (source data in Equirectangular projection)

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This map shows the average precipitation (rain and snowfall) around the world between 2001 and 2022.This map was produced by combining observations from NASA’s Global Precipitation Mission and the Tropical Rainfall Measuring Mission. The band of high precipitation near the equator is known to scientists at the InterTropical Convergence Zone.

IMERG daily climatology in equirectangular projection.

This daily precipitation climatology dataset covers January 2001 to December 2022 computed as a trailing 30-day average to reduce the random noise due to isolated big events. Notable features include the annual cycle of the InterTropical Convergence Zone (ITCZ) following the motion of the Sun (with a time lag) over both land and ocean, the seasonal shift of the Asian Monsoon between South Asia in the boreal summer and Australia in the boreal winter, the North American Monsoon in the late boreal summer in northern Mexico and southwestern U.S., and the dry summer/wet winter pattern in the Mediterranean Sea area and the west coast of the U.S.

Precipitation climatology colorbar

Precipitation climatology colorbar

Date overlay

Credits

Please give credit for this item to:
NASA's Scientific Visualization Studio

This page was originally published on Thursday, January 23, 2025.
This page was last updated on Tuesday, May 20, 2025 at 3:13 PM EDT.

Datasets used

Note: While we identify the data sets used on this page, we do not store any further details, nor the data sets themselves on our site.