The Simple Answer: The color of a star's visible light indicates its surface temperature: a relatively cool star glows red (longer wavelength), and very hot ones glow bluish-white or even blue (shorter wavelengths).
Average Weather in September in Sheridan Wyoming, United States. In Sheridan, the month of September is characterized by rapidly falling daily high temperatures, with daily highs decreasing by 14Â°F, from 82Â°F to 69Â°F over the course of the month, and rarely exceeding 93Â°F or dropping below 53Â°F.
Much of this is due to the topography of the state. Summers in Wyoming are warm with July high temperatures averaging between 85 and 95 Â°F (29 and 35 Â°C) in most of the state. With increasing elevation, however, this average drops rapidly with locations above 9,000 feet (2,700 m) averaging around 70 Â°F (21 Â°C).