Shall i compare thee to a summer's day?
thou art more lovely and more temperate:
rough winds do shake the darling buds of may,
and summer's lease hath all too short a date:
sometimes too hot the eye of heaven shines,
and too often is his gold complexion dimm'd:
use context clues to determine the best meaning of the word temperate as used in the passage.

volatile
changing
even
rosy