A Koeppen Climate that has an average temperature for all months greater than 18 degrees C (64 degrees F) is a type of climate. polar Mild Mid-latitude dry tropical

 tropical

Explanation:

In tropical climates, there are minor seasonal variations in temperature.  They are distinguished from each other by differences in precipitation seasonality.  The movement of Hadley cells affects the climate.

Polar Climate have extremely cold winters and summers.

Dry Climate have deficient precipitation during most of the year.

Mid-latitude Climate will have Mild Winters.

Tropical Climate will have  almost all months with average temperatures above 18° Celsius.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.