PIEDRAS NEGRAS, COAHUILA

This climate type is characterized by extremely variable temperature conditions, with annual means decreasing and annual ranges increasing poleward, and relatively little precipitation. This climate is typically located deep within the interiors of continents and is contiguous with the tropical desert climates of North and South America and of central Asia. This region type owes its origins to locations deep within continental interiors, far from the windward coasts and sources of moist, maritime air. Remoteness from sources of water vapor is enhanced in some regions by mountain barriers upwind.

The Köppen Climate Classification subtype for this climate is "Bsh". (Mid-Latitude Steppe and Desert Climate).

The average temperature for the year in Piedras Negras is 72.3°F (22.4°C). The warmest month, on average, is August with an average temperature of 88.2°F (31.2°C). The coolest month on average is January, with an average temperature of 54.0°F (12.2°C).

The highest recorded temperature in Piedras Negras is 119.5°F (48.6°C), which was recorded in June. The lowest recorded temperature in Piedras Negras is 14.0°F (-10°C), which was recorded in January.

The average amount of precipitation for the year in Piedras Negras is 19.9" (505.5 mm). The month with the most precipitation on average is May with 3.4" (86.4 mm) of precipitation. The month with the least precipitation on average is January with an average of 0.7" (17.8 mm). In terms of liquid precipitation, there are an average of 56.3 days of rain, with the most rain occurring in October with 6.0 days of rain, and the least rain occurring in December with 3.7 days of rain.