Complex sentence: The normal annual rainfall of Orai is 793.8 mm. About 90.4% of annual rainfall is received during monsoon season; only 9.6% of annual rainfall takes place between October to May.
Split into simpler sentences: The normal annual rainfall of Orai is 793.8 mm. About 90.4% of annual rainfall is received during monsoon season. Only 9.6% of annual rainfall takes place between Octobers to May.