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).
annual average low. 8 Â°C. Seattle's coldest days of the year usually occur in mid December when the daily maximum temperature averages 46 degrees Fahrenheit (8 degrees Celsius) and the minimum averages 36 Â°F (2 Â°C). The year's hottest days are normally at the end of July and beginning of August.nnual average low. 8 Â°C. Seattle's coldest days of the year usually occur in mid December when the daily maximum temperature averages 46 degrees Fahrenheit (8 degrees Celsius) and the minimum averages 36 Â°F (2 Â°C). The year's hottest days are normally at the end of July and beginning of August.