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.
Home : Climate Graphs: Wyoming : Sheridan. Average Temperatures for Sheridan. Sheridan's coldest month is January when the average temperature overnight is 9.7Â°F. In July, the warmest month, the average day time temperature rises to 85.2Â°F. Average Rainfall for Sheridan. The driest month in Sheridan is February with 0.57 inches of precipitation, and with 2.41 inches May is the wettest month.