The climate in Monclova
is said to be the nicest, and the most consistent in the world.
In the summer the temperature is usually about 28°C during the day
and cools off to 23°C at night. Winter temperatures are approximately
23°C during the day and 14°C at night. The humidity is quite low
in Monclova, with it increasing somewhat during the rainy season.
You can learn more about Monclova
(Site in Spanish)