good temper vs good humor

good temper and good humor both are nouns.

Word	Noun	Adjective	Verb	Adverb
good temper	Yes	No	No	No
good humor	Yes	No	No	No

As nouns, good temper and good humor are synonyms defined as:

Other synonyms of good temper include amiability, good humour.

good temper (noun)	good humor (noun)
a cheerful and agreeable mood	a cheerful and agreeable mood