Rainfall records going back to around 1900 were assembled from public internet sites;
World Meteorological Organization (WMO) data (1997-present, 57 stations);
data collected by United States National Weather Service (1987-1995, 110 stations);
data on the web-site of the African Data Dissemination Service (ADDS),
provided by the United States Agency for International Development (USAID),
Famine Early Warning System (FEWS) (1900-present, 834 stations).
