December arabica coffee (KCZ24) on Monday closed up +3.95 (+1.59%), and November ICE robusta coffee (RMX24) closed up +78 (+1.76%). Coffee prices rallied after Somar Meteorologia reported Monday that rainfall in Brazil’s biggest arabica coffee growing area of Minas Gerais received 25.1 mm of rain last week, or only 74% of the historical average. In addition, robusta coffee prices rallied as tropical storm Trami brought heavy rain to Vietnam’s key coffee-growing area, which could delay the harvest that typically runs from October to April. Coffee prices have underlying support from concerns abo…