The climate of Zacatecas is semi-arid (BSk, according to the K�ppen climate classification), with an average annual temperature of 15.7 �C. Freezing temperatures are not uncommon, especially in January and February. Temperatures in winter and during the nights most of the year require a coat or heavy jacket. Most rain falls between June and October, and there is a defined winter. Principal wild vegetation is that adapted to dry areas such as nopals, mesquite, maguey and grasses, with pines and holm oaks in the higher elevations. Wildlife includes coyotes, grey foxes, bobcats, opossums, rabbits, raccoons, other small mammals was well as variety of small birds and
