temperateness vs temperate

temperateness is a noun but temperate is not a noun.

Word	Noun	Adjective	Verb	Adverb
temperateness	Yes	No	No	No
temperate	No	Yes	No	No

temperateness (noun)	temperate (noun)
exhibiting restraint imposed on the self
moderate weather; suitable for outdoor activities

temperateness (adjective)	temperate (adjective)
	not extreme in behavior
	(of weather or climate) free from extremes; mild; or characteristic of such weather or climate
	not extreme