Marsala it is not unusual to experience the effect of Sirocco wind, which brings dust and sand from the Sahara. Winters are generally rainy and cooler with temperatures ranging between minimum of (in December 2014) and . Snowfall occurs very rarely, since the temperature has never dropped below freezing, although snow has fallen before, for example in December 2014. In 397 BC the Phoenician colony of Motya on the southwestern coast of Sicily was invaded and destroyed by the Syracusan tyrant Dionysius I. The survivors founded a town on the mainland nearby, the site of modern-day Marsala, which they called by
Sweetness of wine Aszú dessert wines: In Spain, the rules applicable to the sweet and fortified Denominations of Origen Montilla-Moriles and Jerez-Xérès-Sherry In the United States, the wine industry measures the sweetness of must and wine in degrees Brix. Sweetness of wine The subjective sweetness of a wine is determined by the interaction of several factors, including the amount of sugar in the wine, but also the relative levels of alcohol, acids, and tannins. Sugars and alcohol enhance a wine's sweetness; acids (sourness) and bitter tannins counteract it. These principles are outlined in the 1987 work by Émile Peynaud, "The Taste of Wine".