when did it last rain in the atacama desert
Atacama Desert On 25 March 2015, heavy rainfall affected the southern part of the Atacama Desert.[19][20] Resulting floods triggered mudflows that affected the cities of Copiapo, Tierra Amarilla, Chanaral, and Diego de Almagro, causing the deaths of more than 100 people.
Neolithic Subpluvial The Neolithic Subpluvial began during the 7th millennium BCE and was strong for about 2,000 years; it waned over time and ended after the 5.9 kiloyear event (3900 BCE). Then the drier conditions that prevailed prior to the Neolithic Subpluvial returned; desertification advanced, and the Sahara Desert formed (or re-formed). Arid conditions have continued through to the present day.[1]