The coolest stars are the red dwarfs/red giants, with surface temperatures of 3,500 Kelvin or less. As the surface temperature gets hotter, the color of the star turns orange, and then yellow-orange, and then yellow, yellow-white, and then around 5,800 Kelvin it appears white.
In most years, Seattle averages a daily maximum temperature for September that's between 69 and 73 degrees Fahrenheit (20 to 23 degrees Celsius). The minimum temperature usually falls between 52 and 55 Â°F (11 to 13 Â°C). The days at Seattle begin to cool down quickly during September.
The days at Seattle begin to warm up during January. By the end of the month, the temperature has climbed around 3 Â°F (2 Â°C) above what it was at the start. The temperature rises nearly every day this month to over 40 Â°F (4 Â°C) in Seattle.