The Snopes take on it is worthwhile and adds more context about previous snowfalls: On 21 January 2017, flurries from dawn until late afternoon left most of th

The Snopes take on it is worthwhile and adds more context about previous snowfalls: On 21 January 2017, flurries from dawn until late afternoon left most of the area blanketed in snow...A month before that, there was a brief flurry of snow lasting only a couple of hours... snow was documented over the desert in the Bechar region near Aïn Séfra in January 2012... Before 2012, the most recent significant Saharan [sic] in this region appears to have occurred in February 1979, though it bears mentioning that a lack of social media and widespread digital cameras during these years would have made a light dusting far less global a news story. https://www.snopes.com/sahara-desert-snowfall/ https://www.snopes.com/sahara-desert-snowfall/