The degree in the Celsius scale is larger than the Fahrenheit equivalent. The conversion is Celsius times 1.8 equals Fahrenheit.
Thus a one Celsius degree rise in temperature is equivalent to a 1.8 Fahrenheit degree rise. Your 20 Celsius degree temperature difference is in fact 36 Fahrenheit degree difference.
thus, since Celsius is of large scale tends to display a more greater temperature than the other.
