Current global rainfall anomaly

The above map shows the anomalous rain accumulation for the current season (northern hemisphere summer). You can also see rainfall anomalies for previous seasons.

Data comes from the U.S. Climate Prediction Center’s Unified Gauge-based Analysis of Global Daily Precipitation. The above anomaly is accumulated from the start of the current season and computed relative to a daily climatology from 2006-2018.

Seasonal forecasts

Rainfall predictions for the entire season can be found at the IRI at Lamont-Doherty, the APEC Climate Center, the Copernicus Climate Change Service, NOAA, and other locations.  Here we show an experimental statistical prediction for All-India Rainfall, using the model of Wang et al. 2015:

Monsoons are

  • continental-scale circulations that deliver water to billions of people
  • a seasonal reorganization of global atmospheric flow that is driven by the sun
  • dominant climate features in Africa, Asia, Australia, and the tropical Americas
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