Argh, yes, it's the 3rd tone, sorry, not the 2nd. It is rather masculine, and sounds exactly the same as raining, but as you mentioned, a lot of novelists love puns, or have a reason why the name is unusual, such as falling in love during a summer storm or something.

Actual ideogram here: http://chineseculture.about.com/library/symbol/blcc_summer.htm

(I had a colleague whose friend's name meant green pepper in english. and there was a classmate whose chinese name has the same intonation for goat bell.)