The season that typically experiences the highest temperatures in the Basin and Range Province is summer.

During the summer months, temperatures can soar significantly, often exceeding 100°F (38°C) in the lower elevations of the valleys. The combination of arid to semi-arid conditions and high solar exposure leads to intense heat, especially in regions like the Great Basin. While the higher elevations of the mountain ranges may experience milder temperatures, the valleys remain hot, with very little humidity. This extreme summer heat can impact local ecosystems, agriculture, and water resources, making it a defining characteristic of the climate in the Basin and Range Province.