Hotter still is the core. In the sun this is thought to be 10 - 20 million degrees. These temperatures are due to the pressure caused by gravity trying to compress the star. It has to be this temperature for fusion of hydrogen to take place.
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).
Sunlight in September at Seattle lasts for 12 hours and 31 minutes a day on average. The longest day of the month is the 1st with 13 hours and 21 minutes of daylight. By the end of the month, the days have shortened to 11:43 from sunrise to sunset.