BANNACK STATE PARK, MONTANA

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 Bannack State Park is 39.4°F (4.1°C). The warmest month, on average, is July with an average temperature of 62.5°F (16.9°C). The coolest month on average is December, with an average temperature of 16.2°F (-8.8°C).