1. Situation and climate
This region is situated in the Coahuila and Durango States. It has a desert climate with an average annual temperature of 64.4 ° F (18 °C.)
Two very distinct periods occur in this region; the first one from April to October, has an average annual temperature of over 68 ° F (20 °C ) and the second one, from November to March, has temperatures that vary between 56.48 ° F (13,6 °C) and 66.92 ° F (19,4° C). The lowest average annual temperature occurs in January and the highest in July and August.
The relative humidity varies seasonally. In spring it is 31 %, in summer 16 %, in autumn 53 % and 44 % in the winter.
Wine production, including quality wines, continues in these areas of Mexico as well, most notably in the La Laguna region, which straddles the states of Coahuila and Durango in the northeast; this is the home of the Parras Valley, the first appellation recognized by the Mexican government. Half of Mexico’s vineyards are in Sonora.