RANCHO SECO, SAN LUIS POTOSI

This climate type occurs primarily on the periphery of the true deserts in low-latitude semiarid steppe regions. It is transitional to the tropical wet-dry climate on the equatorward side and to the mediterranean climate on its poleward margin, with a cooler, wetter winter resulting from the higher latitude and mid-latitude frontal cyclone activity. Annual precipitation totals are greater than in tropical and subtropical desert climates. Yearly variations in amount are not as extreme as in the true deserts but are nevertheless large.

The Köppen Climate Classification subtype for this climate is "BSk". (Tropical and Subtropical Steppe Climate).

The average temperature for the year in Rancho Seco is 60.3°F (15.7°C). The warmest month, on average, is June with an average temperature of 66.0°F (18.9°C). The coolest month on average is January, with an average temperature of 52.9°F (11.6°C).

The highest recorded temperature in Rancho Seco is 103.1°F (39.5°C), which was recorded in May. The lowest recorded temperature in Rancho Seco is 15.8°F (-9°C), which was recorded in December.

The average amount of precipitation for the year in Rancho Seco is 13.6" (345.4 mm). The month with the most precipitation on average is June with 2.4" (61 mm) of precipitation. The month with the least precipitation on average is March with an average of 0.1" (2.5 mm).