
Global Precipitation Summary for September 2026
Download Headlines The El Nino rainfall anomaly pattern remains dominant in the tropics but with nearly constant spatial correlation with the El Nino composite map

Download Headlines The El Nino rainfall anomaly pattern remains dominant in the tropics but with nearly constant spatial correlation with the El Nino composite map

Download Headlines El Nino rainfall anomaly pattern remains dominant in tropics as El Nino intensifies Tropical cyclones very active in both western and eastern Pacific

Download Headlines: El Nino rainfall anomaly pattern becomes more dominant in tropics Southwestern U.S. wildfires mitigated by seasonal “monsoon” rains, but fires in Canada, Washington,

Download Headlines: El Nino-related rainfall anomalies dominate from the Indian Ocean to South America Global precipitation anomaly stays positive as El Nino intensifies Western U.S.

Download Headlines: Pacific rainfall anomaly pattern switching quickly toward El Nino Global precipitation anomaly switches from negative to positive Problems with one key input data

Download Headlines: La Nina weakens, but aspects of rainfall anomaly pattern still evident Flooding in Hawaii consistent with La Nina pattern Still dry across southern

Download Headlines: La Nina February rainfall pattern still holding on in Pacific Dry across southern tier of U.S. with lack of snow in Rockies and

Download Headlines: La Nina rainfall anomaly pattern still holding on with RNino3.4 Index at -0.9K Flooding in southeast Africa, southern Europe and even New Zealand

Download Headlines: A La Nina pattern dominates the tropics in the annual anomaly map The 2025 anomaly pattern again reinforces the long-term precipitation trend pattern

Download Headlines: La Nina signal remains evident in rainfall anomalies across much of tropics Flooding in northwest U.S. from atmospheric rivers Intense rain events and