Mexico uses the metric system for all measurements. For all weather reports, the temperature is in Celsius (°C).
The temperature of the desert regions in the northwest of the country and the temperate zones in the northeast vary, but it must be taken into account that a large part of the northern territory of Mexico becomes quite cold in winter, with maximum average daily temperatures of between 8°C and 12°C, The average nighttime temperature is -4ºC (24ºF) and snow is sometimes quite common in some northern locations (the Sierra Madre of Chihuahua, Durango, Coahuila, Nuevo Leon and northern Tamaulipas), which can also occur at higher elevations through the temperate forests of central Mexico. In addition, northern Mexico is very hot in the summer with sudden violent storms in the afternoon, with heavy rain and hail; an isolated tornado can also occur during these storms, but rarely, and temperatures can quickly exceed 100F (39C) during the day. The region, which extends from Guadalajara to Morelia, enjoys what many call one of the best climates in the world, with daily high temperatures in the 70’s and 80’s (21C to 26C) throughout the year. Hurricanes are common in coastal cities, especially near the Caribbean Sea and the Gulf of Mexico.